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-rw-r--r--drivers/scsi/bnx2fc/57xx_hsi_bnx2fc.h990
-rw-r--r--drivers/scsi/bnx2fc/Kconfig12
-rw-r--r--drivers/scsi/bnx2fc/Makefile4
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc.h593
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_constants.h274
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_debug.c70
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_debug.h33
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_els.c919
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_fcoe.c2816
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_hwi.c2194
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_io.c2084
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_tgt.c909
12 files changed, 10898 insertions, 0 deletions
diff --git a/drivers/scsi/bnx2fc/57xx_hsi_bnx2fc.h b/drivers/scsi/bnx2fc/57xx_hsi_bnx2fc.h
new file mode 100644
index 00000000000..e1f1e3448f9
--- /dev/null
+++ b/drivers/scsi/bnx2fc/57xx_hsi_bnx2fc.h
@@ -0,0 +1,990 @@
+#ifndef __57XX_FCOE_HSI_LINUX_LE__
+#define __57XX_FCOE_HSI_LINUX_LE__
+
+/*
+ * common data for all protocols
+ */
+struct b577xx_doorbell_hdr {
+ u8 header;
+#define B577XX_DOORBELL_HDR_RX (0x1<<0)
+#define B577XX_DOORBELL_HDR_RX_SHIFT 0
+#define B577XX_DOORBELL_HDR_DB_TYPE (0x1<<1)
+#define B577XX_DOORBELL_HDR_DB_TYPE_SHIFT 1
+#define B577XX_DOORBELL_HDR_DPM_SIZE (0x3<<2)
+#define B577XX_DOORBELL_HDR_DPM_SIZE_SHIFT 2
+#define B577XX_DOORBELL_HDR_CONN_TYPE (0xF<<4)
+#define B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT 4
+};
+
+/*
+ * doorbell message sent to the chip
+ */
+struct b577xx_doorbell {
+#if defined(__BIG_ENDIAN)
+ u16 zero_fill2;
+ u8 zero_fill1;
+ struct b577xx_doorbell_hdr header;
+#elif defined(__LITTLE_ENDIAN)
+ struct b577xx_doorbell_hdr header;
+ u8 zero_fill1;
+ u16 zero_fill2;
+#endif
+};
+
+
+
+/*
+ * doorbell message sent to the chip
+ */
+struct b577xx_doorbell_set_prod {
+#if defined(__BIG_ENDIAN)
+ u16 prod;
+ u8 zero_fill1;
+ struct b577xx_doorbell_hdr header;
+#elif defined(__LITTLE_ENDIAN)
+ struct b577xx_doorbell_hdr header;
+ u8 zero_fill1;
+ u16 prod;
+#endif
+};
+
+
+struct regpair {
+ __le32 lo;
+ __le32 hi;
+};
+
+
+/*
+ * ABTS info $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_abts_info {
+ __le16 aborted_task_id;
+ __le16 reserved0;
+ __le32 reserved1;
+};
+
+
+/*
+ * Fixed size structure in order to plant it in Union structure
+ * $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_abts_rsp_union {
+ u8 r_ctl;
+ u8 rsrv[3];
+ __le32 abts_rsp_payload[7];
+};
+
+
+/*
+ * 4 regs size $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_bd_ctx {
+ __le32 buf_addr_hi;
+ __le32 buf_addr_lo;
+ __le16 buf_len;
+ __le16 rsrv0;
+ __le16 flags;
+ __le16 rsrv1;
+};
+
+
+/*
+ * FCoE cached sges context $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_cached_sge_ctx {
+ struct regpair cur_buf_addr;
+ __le16 cur_buf_rem;
+ __le16 second_buf_rem;
+ struct regpair second_buf_addr;
+};
+
+
+/*
+ * Cleanup info $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_cleanup_info {
+ __le16 cleaned_task_id;
+ __le16 rolled_tx_seq_cnt;
+ __le32 rolled_tx_data_offset;
+};
+
+
+/*
+ * Fcp RSP flags $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_fcp_rsp_flags {
+ u8 flags;
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID (0x1<<0)
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_SHIFT 0
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID (0x1<<1)
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_SHIFT 1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER (0x1<<2)
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_SHIFT 2
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER (0x1<<3)
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_SHIFT 3
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ (0x1<<4)
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_SHIFT 4
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS (0x7<<5)
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_SHIFT 5
+};
+
+/*
+ * Fcp RSP payload $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_fcp_rsp_payload {
+ struct regpair reserved0;
+ __le32 fcp_resid;
+ u8 scsi_status_code;
+ struct fcoe_fcp_rsp_flags fcp_flags;
+ __le16 retry_delay_timer;
+ __le32 fcp_rsp_len;
+ __le32 fcp_sns_len;
+};
+
+/*
+ * Fixed size structure in order to plant it in Union structure
+ * $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_fcp_rsp_union {
+ struct fcoe_fcp_rsp_payload payload;
+ struct regpair reserved0;
+};
+
+/*
+ * FC header $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_fc_hdr {
+ u8 s_id[3];
+ u8 cs_ctl;
+ u8 d_id[3];
+ u8 r_ctl;
+ __le16 seq_cnt;
+ u8 df_ctl;
+ u8 seq_id;
+ u8 f_ctl[3];
+ u8 type;
+ __le32 parameters;
+ __le16 rx_id;
+ __le16 ox_id;
+};
+
+/*
+ * FC header union $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_mp_rsp_union {
+ struct fcoe_fc_hdr fc_hdr;
+ __le32 mp_payload_len;
+ __le32 rsrv;
+};
+
+/*
+ * Completion information $$KEEP_ENDIANNESS$$
+ */
+union fcoe_comp_flow_info {
+ struct fcoe_fcp_rsp_union fcp_rsp;
+ struct fcoe_abts_rsp_union abts_rsp;
+ struct fcoe_mp_rsp_union mp_rsp;
+ __le32 opaque[8];
+};
+
+
+/*
+ * External ABTS info $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_ext_abts_info {
+ __le32 rsrv0[6];
+ struct fcoe_abts_info ctx;
+};
+
+
+/*
+ * External cleanup info $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_ext_cleanup_info {
+ __le32 rsrv0[6];
+ struct fcoe_cleanup_info ctx;
+};
+
+
+/*
+ * Fcoe FW Tx sequence context $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_fw_tx_seq_ctx {
+ __le32 data_offset;
+ __le16 seq_cnt;
+ __le16 rsrv0;
+};
+
+/*
+ * Fcoe external FW Tx sequence context $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_ext_fw_tx_seq_ctx {
+ __le32 rsrv0[6];
+ struct fcoe_fw_tx_seq_ctx ctx;
+};
+
+
+/*
+ * FCoE multiple sges context $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_mul_sges_ctx {
+ struct regpair cur_sge_addr;
+ __le16 cur_sge_off;
+ u8 cur_sge_idx;
+ u8 sgl_size;
+};
+
+/*
+ * FCoE external multiple sges context $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_ext_mul_sges_ctx {
+ struct fcoe_mul_sges_ctx mul_sgl;
+ struct regpair rsrv0;
+};
+
+
+/*
+ * FCP CMD payload $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_fcp_cmd_payload {
+ __le32 opaque[8];
+};
+
+
+
+
+
+/*
+ * Fcp xfr rdy payload $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_fcp_xfr_rdy_payload {
+ __le32 burst_len;
+ __le32 data_ro;
+};
+
+
+/*
+ * FC frame $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_fc_frame {
+ struct fcoe_fc_hdr fc_hdr;
+ __le32 reserved0[2];
+};
+
+
+
+
+/*
+ * FCoE KCQ CQE parameters $$KEEP_ENDIANNESS$$
+ */
+union fcoe_kcqe_params {
+ __le32 reserved0[4];
+};
+
+/*
+ * FCoE KCQ CQE $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kcqe {
+ __le32 fcoe_conn_id;
+ __le32 completion_status;
+ __le32 fcoe_conn_context_id;
+ union fcoe_kcqe_params params;
+ __le16 qe_self_seq;
+ u8 op_code;
+ u8 flags;
+#define FCOE_KCQE_RESERVED0 (0x7<<0)
+#define FCOE_KCQE_RESERVED0_SHIFT 0
+#define FCOE_KCQE_RAMROD_COMPLETION (0x1<<3)
+#define FCOE_KCQE_RAMROD_COMPLETION_SHIFT 3
+#define FCOE_KCQE_LAYER_CODE (0x7<<4)
+#define FCOE_KCQE_LAYER_CODE_SHIFT 4
+#define FCOE_KCQE_LINKED_WITH_NEXT (0x1<<7)
+#define FCOE_KCQE_LINKED_WITH_NEXT_SHIFT 7
+};
+
+
+
+/*
+ * FCoE KWQE header $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_header {
+ u8 op_code;
+ u8 flags;
+#define FCOE_KWQE_HEADER_RESERVED0 (0xF<<0)
+#define FCOE_KWQE_HEADER_RESERVED0_SHIFT 0
+#define FCOE_KWQE_HEADER_LAYER_CODE (0x7<<4)
+#define FCOE_KWQE_HEADER_LAYER_CODE_SHIFT 4
+#define FCOE_KWQE_HEADER_RESERVED1 (0x1<<7)
+#define FCOE_KWQE_HEADER_RESERVED1_SHIFT 7
+};
+
+/*
+ * FCoE firmware init request 1 $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_init1 {
+ __le16 num_tasks;
+ struct fcoe_kwqe_header hdr;
+ __le32 task_list_pbl_addr_lo;
+ __le32 task_list_pbl_addr_hi;
+ __le32 dummy_buffer_addr_lo;
+ __le32 dummy_buffer_addr_hi;
+ __le16 sq_num_wqes;
+ __le16 rq_num_wqes;
+ __le16 rq_buffer_log_size;
+ __le16 cq_num_wqes;
+ __le16 mtu;
+ u8 num_sessions_log;
+ u8 flags;
+#define FCOE_KWQE_INIT1_LOG_PAGE_SIZE (0xF<<0)
+#define FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT 0
+#define FCOE_KWQE_INIT1_LOG_CACHED_PBES_PER_FUNC (0x7<<4)
+#define FCOE_KWQE_INIT1_LOG_CACHED_PBES_PER_FUNC_SHIFT 4
+#define FCOE_KWQE_INIT1_RESERVED1 (0x1<<7)
+#define FCOE_KWQE_INIT1_RESERVED1_SHIFT 7
+};
+
+/*
+ * FCoE firmware init request 2 $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_init2 {
+ u8 hsi_major_version;
+ u8 hsi_minor_version;
+ struct fcoe_kwqe_header hdr;
+ __le32 hash_tbl_pbl_addr_lo;
+ __le32 hash_tbl_pbl_addr_hi;
+ __le32 t2_hash_tbl_addr_lo;
+ __le32 t2_hash_tbl_addr_hi;
+ __le32 t2_ptr_hash_tbl_addr_lo;
+ __le32 t2_ptr_hash_tbl_addr_hi;
+ __le32 free_list_count;
+};
+
+/*
+ * FCoE firmware init request 3 $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_init3 {
+ __le16 reserved0;
+ struct fcoe_kwqe_header hdr;
+ __le32 error_bit_map_lo;
+ __le32 error_bit_map_hi;
+ u8 perf_config;
+ u8 reserved21[3];
+ __le32 reserved2[4];
+};
+
+/*
+ * FCoE connection offload request 1 $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_conn_offload1 {
+ __le16 fcoe_conn_id;
+ struct fcoe_kwqe_header hdr;
+ __le32 sq_addr_lo;
+ __le32 sq_addr_hi;
+ __le32 rq_pbl_addr_lo;
+ __le32 rq_pbl_addr_hi;
+ __le32 rq_first_pbe_addr_lo;
+ __le32 rq_first_pbe_addr_hi;
+ __le16 rq_prod;
+ __le16 reserved0;
+};
+
+/*
+ * FCoE connection offload request 2 $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_conn_offload2 {
+ __le16 tx_max_fc_pay_len;
+ struct fcoe_kwqe_header hdr;
+ __le32 cq_addr_lo;
+ __le32 cq_addr_hi;
+ __le32 xferq_addr_lo;
+ __le32 xferq_addr_hi;
+ __le32 conn_db_addr_lo;
+ __le32 conn_db_addr_hi;
+ __le32 reserved1;
+};
+
+/*
+ * FCoE connection offload request 3 $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_conn_offload3 {
+ __le16 vlan_tag;
+#define FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID (0xFFF<<0)
+#define FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT 0
+#define FCOE_KWQE_CONN_OFFLOAD3_CFI (0x1<<12)
+#define FCOE_KWQE_CONN_OFFLOAD3_CFI_SHIFT 12
+#define FCOE_KWQE_CONN_OFFLOAD3_PRIORITY (0x7<<13)
+#define FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT 13
+ struct fcoe_kwqe_header hdr;
+ u8 s_id[3];
+ u8 tx_max_conc_seqs_c3;
+ u8 d_id[3];
+ u8 flags;
+#define FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS (0x1<<0)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT 0
+#define FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES (0x1<<1)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT 1
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT (0x1<<2)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT 2
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ (0x1<<3)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ_SHIFT 3
+#define FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID (0x1<<4)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT 4
+#define FCOE_KWQE_CONN_OFFLOAD3_B_C2_VALID (0x1<<5)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_C2_VALID_SHIFT 5
+#define FCOE_KWQE_CONN_OFFLOAD3_B_ACK_0 (0x1<<6)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_ACK_0_SHIFT 6
+#define FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG (0x1<<7)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT 7
+ __le32 reserved;
+ __le32 confq_first_pbe_addr_lo;
+ __le32 confq_first_pbe_addr_hi;
+ __le16 tx_total_conc_seqs;
+ __le16 rx_max_fc_pay_len;
+ __le16 rx_total_conc_seqs;
+ u8 rx_max_conc_seqs_c3;
+ u8 rx_open_seqs_exch_c3;
+};
+
+/*
+ * FCoE connection offload request 4 $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_conn_offload4 {
+ u8 e_d_tov_timer_val;
+ u8 reserved2;
+ struct fcoe_kwqe_header hdr;
+ u8 src_mac_addr_lo[2];
+ u8 src_mac_addr_mid[2];
+ u8 src_mac_addr_hi[2];
+ u8 dst_mac_addr_hi[2];
+ u8 dst_mac_addr_lo[2];
+ u8 dst_mac_addr_mid[2];
+ __le32 lcq_addr_lo;
+ __le32 lcq_addr_hi;
+ __le32 confq_pbl_base_addr_lo;
+ __le32 confq_pbl_base_addr_hi;
+};
+
+/*
+ * FCoE connection enable request $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_conn_enable_disable {
+ __le16 reserved0;
+ struct fcoe_kwqe_header hdr;
+ u8 src_mac_addr_lo[2];
+ u8 src_mac_addr_mid[2];
+ u8 src_mac_addr_hi[2];
+ u16 vlan_tag;
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID (0xFFF<<0)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT 0
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_CFI (0x1<<12)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_CFI_SHIFT 12
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY (0x7<<13)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT 13
+ u8 dst_mac_addr_lo[2];
+ u8 dst_mac_addr_mid[2];
+ u8 dst_mac_addr_hi[2];
+ __le16 reserved1;
+ u8 s_id[3];
+ u8 vlan_flag;
+ u8 d_id[3];
+ u8 reserved3;
+ __le32 context_id;
+ __le32 conn_id;
+ __le32 reserved4;
+};
+
+/*
+ * FCoE connection destroy request $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_conn_destroy {
+ __le16 reserved0;
+ struct fcoe_kwqe_header hdr;
+ __le32 context_id;
+ __le32 conn_id;
+ __le32 reserved1[5];
+};
+
+/*
+ * FCoe destroy request $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_destroy {
+ __le16 reserved0;
+ struct fcoe_kwqe_header hdr;
+ __le32 reserved1[7];
+};
+
+/*
+ * FCoe statistics request $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_kwqe_stat {
+ __le16 reserved0;
+ struct fcoe_kwqe_header hdr;
+ __le32 stat_params_addr_lo;
+ __le32 stat_params_addr_hi;
+ __le32 reserved1[5];
+};
+
+/*
+ * FCoE KWQ WQE $$KEEP_ENDIANNESS$$
+ */
+union fcoe_kwqe {
+ struct fcoe_kwqe_init1 init1;
+ struct fcoe_kwqe_init2 init2;
+ struct fcoe_kwqe_init3 init3;
+ struct fcoe_kwqe_conn_offload1 conn_offload1;
+ struct fcoe_kwqe_conn_offload2 conn_offload2;
+ struct fcoe_kwqe_conn_offload3 conn_offload3;
+ struct fcoe_kwqe_conn_offload4 conn_offload4;
+ struct fcoe_kwqe_conn_enable_disable conn_enable_disable;
+ struct fcoe_kwqe_conn_destroy conn_destroy;
+ struct fcoe_kwqe_destroy destroy;
+ struct fcoe_kwqe_stat statistics;
+};
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+/*
+ * TX SGL context $$KEEP_ENDIANNESS$$
+ */
+union fcoe_sgl_union_ctx {
+ struct fcoe_cached_sge_ctx cached_sge;
+ struct fcoe_ext_mul_sges_ctx sgl;
+ __le32 opaque[5];
+};
+
+/*
+ * Data-In/ELS/BLS information $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_read_flow_info {
+ union fcoe_sgl_union_ctx sgl_ctx;
+ __le32 rsrv0[3];
+};
+
+
+/*
+ * Fcoe stat context $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_s_stat_ctx {
+ u8 flags;
+#define FCOE_S_STAT_CTX_ACTIVE (0x1<<0)
+#define FCOE_S_STAT_CTX_ACTIVE_SHIFT 0
+#define FCOE_S_STAT_CTX_ACK_ABORT_SEQ_COND (0x1<<1)
+#define FCOE_S_STAT_CTX_ACK_ABORT_SEQ_COND_SHIFT 1
+#define FCOE_S_STAT_CTX_ABTS_PERFORMED (0x1<<2)
+#define FCOE_S_STAT_CTX_ABTS_PERFORMED_SHIFT 2
+#define FCOE_S_STAT_CTX_SEQ_TIMEOUT (0x1<<3)
+#define FCOE_S_STAT_CTX_SEQ_TIMEOUT_SHIFT 3
+#define FCOE_S_STAT_CTX_P_RJT (0x1<<4)
+#define FCOE_S_STAT_CTX_P_RJT_SHIFT 4
+#define FCOE_S_STAT_CTX_ACK_EOFT (0x1<<5)
+#define FCOE_S_STAT_CTX_ACK_EOFT_SHIFT 5
+#define FCOE_S_STAT_CTX_RSRV1 (0x3<<6)
+#define FCOE_S_STAT_CTX_RSRV1_SHIFT 6
+};
+
+/*
+ * Fcoe rx seq context $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_rx_seq_ctx {
+ u8 seq_id;
+ struct fcoe_s_stat_ctx s_stat;
+ __le16 seq_cnt;
+ __le32 low_exp_ro;
+ __le32 high_exp_ro;
+};
+
+
+/*
+ * Fcoe rx_wr union context $$KEEP_ENDIANNESS$$
+ */
+union fcoe_rx_wr_union_ctx {
+ struct fcoe_read_flow_info read_info;
+ union fcoe_comp_flow_info comp_info;
+ __le32 opaque[8];
+};
+
+
+
+/*
+ * FCoE SQ element $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_sqe {
+ __le16 wqe;
+#define FCOE_SQE_TASK_ID (0x7FFF<<0)
+#define FCOE_SQE_TASK_ID_SHIFT 0
+#define FCOE_SQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_SQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+
+/*
+ * 14 regs $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_tce_tx_only {
+ union fcoe_sgl_union_ctx sgl_ctx;
+ __le32 rsrv0;
+};
+
+/*
+ * 32 bytes (8 regs) used for TX only purposes $$KEEP_ENDIANNESS$$
+ */
+union fcoe_tx_wr_rx_rd_union_ctx {
+ struct fcoe_fc_frame tx_frame;
+ struct fcoe_fcp_cmd_payload fcp_cmd;
+ struct fcoe_ext_cleanup_info cleanup;
+ struct fcoe_ext_abts_info abts;
+ struct fcoe_ext_fw_tx_seq_ctx tx_seq;
+ __le32 opaque[8];
+};
+
+/*
+ * tce_tx_wr_rx_rd_const $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_tce_tx_wr_rx_rd_const {
+ u8 init_flags;
+#define FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE (0x7<<0)
+#define FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT 0
+#define FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE (0x1<<3)
+#define FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT 3
+#define FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE (0x1<<4)
+#define FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT 4
+#define FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE (0x3<<5)
+#define FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT 5
+#define FCOE_TCE_TX_WR_RX_RD_CONST_SUPPORT_REC_TOV (0x1<<7)
+#define FCOE_TCE_TX_WR_RX_RD_CONST_SUPPORT_REC_TOV_SHIFT 7
+ u8 tx_flags;
+#define FCOE_TCE_TX_WR_RX_RD_CONST_TX_VALID (0x1<<0)
+#define FCOE_TCE_TX_WR_RX_RD_CONST_TX_VALID_SHIFT 0
+#define FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE (0xF<<1)
+#define FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT 1
+#define FCOE_TCE_TX_WR_RX_RD_CONST_RSRV1 (0x1<<5)
+#define FCOE_TCE_TX_WR_RX_RD_CONST_RSRV1_SHIFT 5
+#define FCOE_TCE_TX_WR_RX_RD_CONST_TX_SEQ_INIT (0x1<<6)
+#define FCOE_TCE_TX_WR_RX_RD_CONST_TX_SEQ_INIT_SHIFT 6
+#define FCOE_TCE_TX_WR_RX_RD_CONST_RSRV2 (0x1<<7)
+#define FCOE_TCE_TX_WR_RX_RD_CONST_RSRV2_SHIFT 7
+ __le16 rsrv3;
+ __le32 verify_tx_seq;
+};
+
+/*
+ * tce_tx_wr_rx_rd $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_tce_tx_wr_rx_rd {
+ union fcoe_tx_wr_rx_rd_union_ctx union_ctx;
+ struct fcoe_tce_tx_wr_rx_rd_const const_ctx;
+};
+
+/*
+ * tce_rx_wr_tx_rd_const $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_tce_rx_wr_tx_rd_const {
+ __le32 data_2_trns;
+ __le32 init_flags;
+#define FCOE_TCE_RX_WR_TX_RD_CONST_CID (0xFFFFFF<<0)
+#define FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT 0
+#define FCOE_TCE_RX_WR_TX_RD_CONST_RSRV0 (0xFF<<24)
+#define FCOE_TCE_RX_WR_TX_RD_CONST_RSRV0_SHIFT 24
+};
+
+/*
+ * tce_rx_wr_tx_rd_var $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_tce_rx_wr_tx_rd_var {
+ __le16 rx_flags;
+#define FCOE_TCE_RX_WR_TX_RD_VAR_RSRV1 (0xF<<0)
+#define FCOE_TCE_RX_WR_TX_RD_VAR_RSRV1_SHIFT 0
+#define FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE (0x7<<4)
+#define FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE_SHIFT 4
+#define FCOE_TCE_RX_WR_TX_RD_VAR_CONF_REQ (0x1<<7)
+#define FCOE_TCE_RX_WR_TX_RD_VAR_CONF_REQ_SHIFT 7
+#define FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE (0xF<<8)
+#define FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE_SHIFT 8
+#define FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME (0x1<<12)
+#define FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT 12
+#define FCOE_TCE_RX_WR_TX_RD_VAR_RX_SEQ_INIT (0x1<<13)
+#define FCOE_TCE_RX_WR_TX_RD_VAR_RX_SEQ_INIT_SHIFT 13
+#define FCOE_TCE_RX_WR_TX_RD_VAR_RSRV2 (0x1<<14)
+#define FCOE_TCE_RX_WR_TX_RD_VAR_RSRV2_SHIFT 14
+#define FCOE_TCE_RX_WR_TX_RD_VAR_RX_VALID (0x1<<15)
+#define FCOE_TCE_RX_WR_TX_RD_VAR_RX_VALID_SHIFT 15
+ __le16 rx_id;
+ struct fcoe_fcp_xfr_rdy_payload fcp_xfr_rdy;
+};
+
+/*
+ * tce_rx_wr_tx_rd $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_tce_rx_wr_tx_rd {
+ struct fcoe_tce_rx_wr_tx_rd_const const_ctx;
+ struct fcoe_tce_rx_wr_tx_rd_var var_ctx;
+};
+
+/*
+ * tce_rx_only $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_tce_rx_only {
+ struct fcoe_rx_seq_ctx rx_seq_ctx;
+ union fcoe_rx_wr_union_ctx union_ctx;
+};
+
+/*
+ * task_ctx_entry $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_task_ctx_entry {
+ struct fcoe_tce_tx_only txwr_only;
+ struct fcoe_tce_tx_wr_rx_rd txwr_rxrd;
+ struct fcoe_tce_rx_wr_tx_rd rxwr_txrd;
+ struct fcoe_tce_rx_only rxwr_only;
+};
+
+
+
+
+
+
+
+
+
+
+/*
+ * FCoE XFRQ element $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_xfrqe {
+ __le16 wqe;
+#define FCOE_XFRQE_TASK_ID (0x7FFF<<0)
+#define FCOE_XFRQE_TASK_ID_SHIFT 0
+#define FCOE_XFRQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_XFRQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+/*
+ * fcoe rx doorbell message sent to the chip $$KEEP_ENDIANNESS$$
+ */
+struct b577xx_fcoe_rx_doorbell {
+ struct b577xx_doorbell_hdr hdr;
+ u8 params;
+#define B577XX_FCOE_RX_DOORBELL_NEGATIVE_ARM (0x1F<<0)
+#define B577XX_FCOE_RX_DOORBELL_NEGATIVE_ARM_SHIFT 0
+#define B577XX_FCOE_RX_DOORBELL_OPCODE (0x7<<5)
+#define B577XX_FCOE_RX_DOORBELL_OPCODE_SHIFT 5
+ __le16 doorbell_cq_cons;
+};
+
+
+/*
+ * FCoE CONFQ element $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_confqe {
+ __le16 ox_id;
+ __le16 rx_id;
+ __le32 param;
+};
+
+
+/*
+ * FCoE conection data base
+ */
+struct fcoe_conn_db {
+#if defined(__BIG_ENDIAN)
+ u16 rsrv0;
+ u16 rq_prod;
+#elif defined(__LITTLE_ENDIAN)
+ u16 rq_prod;
+ u16 rsrv0;
+#endif
+ u32 rsrv1;
+ struct regpair cq_arm;
+};
+
+
+/*
+ * FCoE CQ element $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_cqe {
+ __le16 wqe;
+#define FCOE_CQE_CQE_INFO (0x3FFF<<0)
+#define FCOE_CQE_CQE_INFO_SHIFT 0
+#define FCOE_CQE_CQE_TYPE (0x1<<14)
+#define FCOE_CQE_CQE_TYPE_SHIFT 14
+#define FCOE_CQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_CQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+/*
+ * FCoE error/warning reporting entry $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_partial_err_report_entry {
+ __le32 err_warn_bitmap_lo;
+ __le32 err_warn_bitmap_hi;
+ __le32 tx_buf_off;
+ __le32 rx_buf_off;
+};
+
+/*
+ * FCoE error/warning reporting entry $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_err_report_entry {
+ struct fcoe_partial_err_report_entry data;
+ struct fcoe_fc_hdr fc_hdr;
+};
+
+
+/*
+ * FCoE hash table entry (32 bytes) $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_hash_table_entry {
+ u8 s_id_0;
+ u8 s_id_1;
+ u8 s_id_2;
+ u8 d_id_0;
+ u8 d_id_1;
+ u8 d_id_2;
+ __le16 dst_mac_addr_hi;
+ __le16 dst_mac_addr_mid;
+ __le16 dst_mac_addr_lo;
+ __le16 src_mac_addr_hi;
+ __le16 vlan_id;
+ __le16 src_mac_addr_lo;
+ __le16 src_mac_addr_mid;
+ u8 vlan_flag;
+ u8 reserved0;
+ __le16 reserved1;
+ __le32 reserved2;
+ __le32 field_id;
+#define FCOE_HASH_TABLE_ENTRY_CID (0xFFFFFF<<0)
+#define FCOE_HASH_TABLE_ENTRY_CID_SHIFT 0
+#define FCOE_HASH_TABLE_ENTRY_RESERVED3 (0x7F<<24)
+#define FCOE_HASH_TABLE_ENTRY_RESERVED3_SHIFT 24
+#define FCOE_HASH_TABLE_ENTRY_VALID (0x1<<31)
+#define FCOE_HASH_TABLE_ENTRY_VALID_SHIFT 31
+};
+
+
+/*
+ * FCoE LCQ element $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_lcqe {
+ __le32 wqe;
+#define FCOE_LCQE_TASK_ID (0xFFFF<<0)
+#define FCOE_LCQE_TASK_ID_SHIFT 0
+#define FCOE_LCQE_LCQE_TYPE (0xFF<<16)
+#define FCOE_LCQE_LCQE_TYPE_SHIFT 16
+#define FCOE_LCQE_RESERVED (0xFF<<24)
+#define FCOE_LCQE_RESERVED_SHIFT 24
+};
+
+
+
+/*
+ * FCoE pending work request CQE $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_pend_wq_cqe {
+ __le16 wqe;
+#define FCOE_PEND_WQ_CQE_TASK_ID (0x3FFF<<0)
+#define FCOE_PEND_WQ_CQE_TASK_ID_SHIFT 0
+#define FCOE_PEND_WQ_CQE_CQE_TYPE (0x1<<14)
+#define FCOE_PEND_WQ_CQE_CQE_TYPE_SHIFT 14
+#define FCOE_PEND_WQ_CQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_PEND_WQ_CQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+/*
+ * FCoE RX statistics parameters section#0 $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_rx_stat_params_section0 {
+ __le32 fcoe_rx_pkt_cnt;
+ __le32 fcoe_rx_byte_cnt;
+};
+
+
+/*
+ * FCoE RX statistics parameters section#1 $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_rx_stat_params_section1 {
+ __le32 fcoe_ver_cnt;
+ __le32 fcoe_rx_drop_pkt_cnt;
+};
+
+
+/*
+ * FCoE RX statistics parameters section#2 $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_rx_stat_params_section2 {
+ __le32 fc_crc_cnt;
+ __le32 eofa_del_cnt;
+ __le32 miss_frame_cnt;
+ __le32 seq_timeout_cnt;
+ __le32 drop_seq_cnt;
+ __le32 fcoe_rx_drop_pkt_cnt;
+ __le32 fcp_rx_pkt_cnt;
+ __le32 reserved0;
+};
+
+
+/*
+ * FCoE TX statistics parameters $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_tx_stat_params {
+ __le32 fcoe_tx_pkt_cnt;
+ __le32 fcoe_tx_byte_cnt;
+ __le32 fcp_tx_pkt_cnt;
+ __le32 reserved0;
+};
+
+/*
+ * FCoE statistics parameters $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_statistics_params {
+ struct fcoe_tx_stat_params tx_stat;
+ struct fcoe_rx_stat_params_section0 rx_stat0;
+ struct fcoe_rx_stat_params_section1 rx_stat1;
+ struct fcoe_rx_stat_params_section2 rx_stat2;
+};
+
+
+/*
+ * FCoE t2 hash table entry (64 bytes) $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_t2_hash_table_entry {
+ struct fcoe_hash_table_entry data;
+ struct regpair next;
+ struct regpair reserved0[3];
+};
+
+
+
+/*
+ * FCoE unsolicited CQE $$KEEP_ENDIANNESS$$
+ */
+struct fcoe_unsolicited_cqe {
+ __le16 wqe;
+#define FCOE_UNSOLICITED_CQE_SUBTYPE (0x3<<0)
+#define FCOE_UNSOLICITED_CQE_SUBTYPE_SHIFT 0
+#define FCOE_UNSOLICITED_CQE_PKT_LEN (0xFFF<<2)
+#define FCOE_UNSOLICITED_CQE_PKT_LEN_SHIFT 2
+#define FCOE_UNSOLICITED_CQE_CQE_TYPE (0x1<<14)
+#define FCOE_UNSOLICITED_CQE_CQE_TYPE_SHIFT 14
+#define FCOE_UNSOLICITED_CQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_UNSOLICITED_CQE_TOGGLE_BIT_SHIFT 15
+};
+
+#endif /* __57XX_FCOE_HSI_LINUX_LE__ */
diff --git a/drivers/scsi/bnx2fc/Kconfig b/drivers/scsi/bnx2fc/Kconfig
new file mode 100644
index 00000000000..cfcad8bde7c
--- /dev/null
+++ b/drivers/scsi/bnx2fc/Kconfig
@@ -0,0 +1,12 @@
+config SCSI_BNX2X_FCOE
+ tristate "Broadcom NetXtreme II FCoE support"
+ depends on PCI
+ select NETDEVICES
+ select ETHERNET
+ select NET_VENDOR_BROADCOM
+ select LIBFC
+ select LIBFCOE
+ select CNIC
+ ---help---
+ This driver supports FCoE offload for the Broadcom NetXtreme II
+ devices.
diff --git a/drivers/scsi/bnx2fc/Makefile b/drivers/scsi/bnx2fc/Makefile
new file mode 100644
index 00000000000..141149e8cda
--- /dev/null
+++ b/drivers/scsi/bnx2fc/Makefile
@@ -0,0 +1,4 @@
+obj-$(CONFIG_SCSI_BNX2X_FCOE) += bnx2fc.o
+
+bnx2fc-y := bnx2fc_els.o bnx2fc_fcoe.o bnx2fc_hwi.o bnx2fc_io.o bnx2fc_tgt.o \
+ bnx2fc_debug.o
diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h
new file mode 100644
index 00000000000..6a976657b47
--- /dev/null
+++ b/drivers/scsi/bnx2fc/bnx2fc.h
@@ -0,0 +1,593 @@
+#ifndef _BNX2FC_H_
+#define _BNX2FC_H_
+/* bnx2fc.h: Broadcom NetXtreme II Linux FCoE offload driver.
+ *
+ * Copyright (c) 2008 - 2013 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/kthread.h>
+#include <linux/crc32.h>
+#include <linux/cpu.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/workqueue.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/bitops.h>
+#include <linux/log2.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/io.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/libfc.h>
+#include <scsi/libfcoe.h>
+#include <scsi/fc_encode.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_fc.h>
+#include <scsi/fc/fc_fip.h>
+#include <scsi/fc/fc_fc2.h>
+#include <scsi/fc_frame.h>
+#include <scsi/fc/fc_fcoe.h>
+#include <scsi/fc/fc_fcp.h>
+
+#include "57xx_hsi_bnx2fc.h"
+#include "../../net/ethernet/broadcom/cnic_if.h"
+#include "../../net/ethernet/broadcom/bnx2x/bnx2x_mfw_req.h"
+#include "bnx2fc_constants.h"
+
+#define BNX2FC_NAME "bnx2fc"
+#define BNX2FC_VERSION "2.4.2"
+
+#define PFX "bnx2fc: "
+
+#define BCM_CHIP_LEN 16
+
+#define BNX2X_DOORBELL_PCI_BAR 2
+
+#define BNX2FC_MAX_BD_LEN 0xffff
+#define BNX2FC_BD_SPLIT_SZ 0x8000
+#define BNX2FC_MAX_BDS_PER_CMD 256
+
+#define BNX2FC_SQ_WQES_MAX 256
+
+#define BNX2FC_SCSI_MAX_SQES ((3 * BNX2FC_SQ_WQES_MAX) / 8)
+#define BNX2FC_TM_MAX_SQES ((BNX2FC_SQ_WQES_MAX) / 2)
+#define BNX2FC_ELS_MAX_SQES (BNX2FC_TM_MAX_SQES - 1)
+
+#define BNX2FC_RQ_WQES_MAX 16
+#define BNX2FC_CQ_WQES_MAX (BNX2FC_SQ_WQES_MAX + BNX2FC_RQ_WQES_MAX)
+
+#define BNX2FC_NUM_MAX_SESS 1024
+#define BNX2FC_NUM_MAX_SESS_LOG (ilog2(BNX2FC_NUM_MAX_SESS))
+
+#define BNX2FC_MAX_NPIV 256
+
+#define BNX2FC_MIN_PAYLOAD 256
+#define BNX2FC_MAX_PAYLOAD 2048
+#define BNX2FC_MFS \
+ (BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header))
+#define BNX2FC_MINI_JUMBO_MTU 2500
+
+
+#define BNX2FC_RQ_BUF_SZ 256
+#define BNX2FC_RQ_BUF_LOG_SZ (ilog2(BNX2FC_RQ_BUF_SZ))
+
+#define BNX2FC_SQ_WQE_SIZE (sizeof(struct fcoe_sqe))
+#define BNX2FC_CQ_WQE_SIZE (sizeof(struct fcoe_cqe))
+#define BNX2FC_RQ_WQE_SIZE (BNX2FC_RQ_BUF_SZ)
+#define BNX2FC_XFERQ_WQE_SIZE (sizeof(struct fcoe_xfrqe))
+#define BNX2FC_CONFQ_WQE_SIZE (sizeof(struct fcoe_confqe))
+#define BNX2X_DB_SHIFT 3
+
+#define BNX2FC_TASK_SIZE 128
+#define BNX2FC_TASKS_PER_PAGE (PAGE_SIZE/BNX2FC_TASK_SIZE)
+
+#define BNX2FC_MAX_ROWS_IN_HASH_TBL 8
+#define BNX2FC_HASH_TBL_CHUNK_SIZE (16 * 1024)
+
+#define BNX2FC_MAX_SEQS 255
+#define BNX2FC_MAX_RETRY_CNT 3
+#define BNX2FC_MAX_RPORT_RETRY_CNT 255
+
+#define BNX2FC_READ (1 << 1)
+#define BNX2FC_WRITE (1 << 0)
+
+#define BNX2FC_MIN_XID 0
+#define FCOE_MAX_NUM_XIDS 0x2000
+#define FCOE_MAX_XID_OFFSET (FCOE_MAX_NUM_XIDS - 1)
+#define FCOE_XIDS_PER_CPU_OFFSET ((512 * nr_cpu_ids) - 1)
+#define BNX2FC_MAX_LUN 0xFFFF
+#define BNX2FC_MAX_FCP_TGT 256
+#define BNX2FC_MAX_CMD_LEN 16
+
+#define BNX2FC_TM_TIMEOUT 60 /* secs */
+#define BNX2FC_IO_TIMEOUT 20000UL /* msecs */
+
+#define BNX2FC_WAIT_CNT 1200
+#define BNX2FC_FW_TIMEOUT (3 * HZ)
+#define PORT_MAX 2
+
+#define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status)
+
+/* FC FCP Status */
+#define FC_GOOD 0
+
+#define BNX2FC_RNID_HBA 0x7
+
+#define SRR_RETRY_COUNT 5
+#define REC_RETRY_COUNT 1
+#define BNX2FC_NUM_ERR_BITS 63
+
+#define BNX2FC_RELOGIN_WAIT_TIME 200
+#define BNX2FC_RELOGIN_WAIT_CNT 10
+
+#define BNX2FC_STATS(hba, stat, cnt) \
+ do { \
+ u32 val; \
+ \
+ val = fw_stats->stat.cnt; \
+ if (hba->prev_stats.stat.cnt <= val) \
+ val -= hba->prev_stats.stat.cnt; \
+ else \
+ val += (0xfffffff - hba->prev_stats.stat.cnt); \
+ hba->bfw_stats.cnt += val; \
+ } while (0)
+
+/* bnx2fc driver uses only one instance of fcoe_percpu_s */
+extern struct fcoe_percpu_s bnx2fc_global;
+
+extern struct workqueue_struct *bnx2fc_wq;
+
+struct bnx2fc_percpu_s {
+ struct task_struct *iothread;
+ struct list_head work_list;
+ spinlock_t fp_work_lock;
+};
+
+struct bnx2fc_fw_stats {
+ u64 fc_crc_cnt;
+ u64 fcoe_tx_pkt_cnt;
+ u64 fcoe_rx_pkt_cnt;
+ u64 fcoe_tx_byte_cnt;
+ u64 fcoe_rx_byte_cnt;
+};
+
+struct bnx2fc_hba {
+ struct list_head list;
+ struct cnic_dev *cnic;
+ struct pci_dev *pcidev;
+ struct net_device *phys_dev;
+ unsigned long reg_with_cnic;
+ #define BNX2FC_CNIC_REGISTERED 1
+ struct bnx2fc_cmd_mgr *cmd_mgr;
+ spinlock_t hba_lock;
+ struct mutex hba_mutex;
+ unsigned long adapter_state;
+ #define ADAPTER_STATE_UP 0
+ #define ADAPTER_STATE_GOING_DOWN 1
+ #define ADAPTER_STATE_LINK_DOWN 2
+ #define ADAPTER_STATE_READY 3
+ unsigned long flags;
+ #define BNX2FC_FLAG_FW_INIT_DONE 0
+ #define BNX2FC_FLAG_DESTROY_CMPL 1
+ u32 next_conn_id;
+
+ /* xid resources */
+ u16 max_xid;
+ u32 max_tasks;
+ u32 max_outstanding_cmds;
+ u32 elstm_xids;
+
+ struct fcoe_task_ctx_entry **task_ctx;
+ dma_addr_t *task_ctx_dma;
+ struct regpair *task_ctx_bd_tbl;
+ dma_addr_t task_ctx_bd_dma;
+
+ int hash_tbl_segment_count;
+ void **hash_tbl_segments;
+ void *hash_tbl_pbl;
+ dma_addr_t hash_tbl_pbl_dma;
+ struct fcoe_t2_hash_table_entry *t2_hash_tbl;
+ dma_addr_t t2_hash_tbl_dma;
+ char *t2_hash_tbl_ptr;
+ dma_addr_t t2_hash_tbl_ptr_dma;
+
+ char *dummy_buffer;
+ dma_addr_t dummy_buf_dma;
+
+ /* Active list of offloaded sessions */
+ struct bnx2fc_rport **tgt_ofld_list;
+
+ /* statistics */
+ struct bnx2fc_fw_stats bfw_stats;
+ struct fcoe_statistics_params prev_stats;
+ struct fcoe_statistics_params *stats_buffer;
+ dma_addr_t stats_buf_dma;
+ struct completion stat_req_done;
+ struct fcoe_capabilities fcoe_cap;
+
+ /*destroy handling */
+ struct timer_list destroy_timer;
+ wait_queue_head_t destroy_wait;
+
+ /* linkdown handling */
+ wait_queue_head_t shutdown_wait;
+ int wait_for_link_down;
+ int num_ofld_sess;
+ struct list_head vports;
+
+ char chip_num[BCM_CHIP_LEN];
+};
+
+struct bnx2fc_interface {
+ struct list_head list;
+ unsigned long if_flags;
+ #define BNX2FC_CTLR_INIT_DONE 0
+ struct bnx2fc_hba *hba;
+ struct net_device *netdev;
+ struct packet_type fcoe_packet_type;
+ struct packet_type fip_packet_type;
+ struct workqueue_struct *timer_work_queue;
+ struct kref kref;
+ u8 vlan_enabled;
+ int vlan_id;
+ bool enabled;
+};
+
+#define bnx2fc_from_ctlr(x) \
+ ((struct bnx2fc_interface *)((x) + 1))
+
+#define bnx2fc_to_ctlr(x) \
+ ((struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1))
+
+struct bnx2fc_lport {
+ struct list_head list;
+ struct fc_lport *lport;
+};
+
+struct bnx2fc_cmd_mgr {
+ struct bnx2fc_hba *hba;
+ u16 next_idx;
+ struct list_head *free_list;
+ spinlock_t *free_list_lock;
+ struct io_bdt **io_bdt_pool;
+ struct bnx2fc_cmd **cmds;
+};
+
+struct bnx2fc_rport {
+ struct fcoe_port *port;
+ struct fc_rport *rport;
+ struct fc_rport_priv *rdata;
+ void __iomem *ctx_base;
+#define DPM_TRIGER_TYPE 0x40
+ u32 io_timeout;
+ u32 fcoe_conn_id;
+ u32 context_id;
+ u32 sid;
+ int dev_type;
+
+ unsigned long flags;
+#define BNX2FC_FLAG_SESSION_READY 0x1
+#define BNX2FC_FLAG_OFFLOADED 0x2
+#define BNX2FC_FLAG_DISABLED 0x3
+#define BNX2FC_FLAG_DESTROYED 0x4
+#define BNX2FC_FLAG_OFLD_REQ_CMPL 0x5
+#define BNX2FC_FLAG_CTX_ALLOC_FAILURE 0x6
+#define BNX2FC_FLAG_UPLD_REQ_COMPL 0x7
+#define BNX2FC_FLAG_EXPL_LOGO 0x8
+#define BNX2FC_FLAG_DISABLE_FAILED 0x9
+#define BNX2FC_FLAG_ENABLED 0xa
+
+ u8 src_addr[ETH_ALEN];
+ u32 max_sqes;
+ u32 max_rqes;
+ u32 max_cqes;
+ atomic_t free_sqes;
+
+ struct b577xx_doorbell_set_prod sq_db;
+ struct b577xx_fcoe_rx_doorbell rx_db;
+
+ struct fcoe_sqe *sq;
+ dma_addr_t sq_dma;
+ u16 sq_prod_idx;
+ u8 sq_curr_toggle_bit;
+ u32 sq_mem_size;
+
+ struct fcoe_cqe *cq;
+ dma_addr_t cq_dma;
+ u16 cq_cons_idx;
+ u8 cq_curr_toggle_bit;
+ u32 cq_mem_size;
+
+ void *rq;
+ dma_addr_t rq_dma;
+ u32 rq_prod_idx;
+ u32 rq_cons_idx;
+ u32 rq_mem_size;
+
+ void *rq_pbl;
+ dma_addr_t rq_pbl_dma;
+ u32 rq_pbl_size;
+
+ struct fcoe_xfrqe *xferq;
+ dma_addr_t xferq_dma;
+ u32 xferq_mem_size;
+
+ struct fcoe_confqe *confq;
+ dma_addr_t confq_dma;
+ u32 confq_mem_size;
+
+ void *confq_pbl;
+ dma_addr_t confq_pbl_dma;
+ u32 confq_pbl_size;
+
+ struct fcoe_conn_db *conn_db;
+ dma_addr_t conn_db_dma;
+ u32 conn_db_mem_size;
+
+ struct fcoe_sqe *lcq;
+ dma_addr_t lcq_dma;
+ u32 lcq_mem_size;
+
+ void *ofld_req[4];
+ dma_addr_t ofld_req_dma[4];
+ void *enbl_req;
+ dma_addr_t enbl_req_dma;
+
+ spinlock_t tgt_lock;
+ spinlock_t cq_lock;
+ atomic_t num_active_ios;
+ u32 flush_in_prog;
+ unsigned long timestamp;
+ unsigned long retry_delay_timestamp;
+ struct list_head free_task_list;
+ struct bnx2fc_cmd *pending_queue[BNX2FC_SQ_WQES_MAX+1];
+ struct list_head active_cmd_queue;
+ struct list_head els_queue;
+ struct list_head io_retire_queue;
+ struct list_head active_tm_queue;
+
+ struct timer_list ofld_timer;
+ wait_queue_head_t ofld_wait;
+
+ struct timer_list upld_timer;
+ wait_queue_head_t upld_wait;
+};
+
+struct bnx2fc_mp_req {
+ u8 tm_flags;
+
+ u32 req_len;
+ void *req_buf;
+ dma_addr_t req_buf_dma;
+ struct fcoe_bd_ctx *mp_req_bd;
+ dma_addr_t mp_req_bd_dma;
+ struct fc_frame_header req_fc_hdr;
+
+ u32 resp_len;
+ void *resp_buf;
+ dma_addr_t resp_buf_dma;
+ struct fcoe_bd_ctx *mp_resp_bd;
+ dma_addr_t mp_resp_bd_dma;
+ struct fc_frame_header resp_fc_hdr;
+};
+
+struct bnx2fc_els_cb_arg {
+ struct bnx2fc_cmd *aborted_io_req;
+ struct bnx2fc_cmd *io_req;
+ u16 l2_oxid;
+ u32 offset;
+ enum fc_rctl r_ctl;
+};
+
+/* bnx2fc command structure */
+struct bnx2fc_cmd {
+ struct list_head link;
+ u8 on_active_queue;
+ u8 on_tmf_queue;
+ u8 cmd_type;
+#define BNX2FC_SCSI_CMD 1
+#define BNX2FC_TASK_MGMT_CMD 2
+#define BNX2FC_ABTS 3
+#define BNX2FC_ELS 4
+#define BNX2FC_CLEANUP 5
+#define BNX2FC_SEQ_CLEANUP 6
+ u8 io_req_flags;
+ struct kref refcount;
+ struct fcoe_port *port;
+ struct bnx2fc_rport *tgt;
+ struct scsi_cmnd *sc_cmd;
+ struct bnx2fc_cmd_mgr *cmd_mgr;
+ struct bnx2fc_mp_req mp_req;
+ void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg);
+ struct bnx2fc_els_cb_arg *cb_arg;
+ struct delayed_work timeout_work; /* timer for ULP timeouts */
+ struct completion tm_done;
+ int wait_for_comp;
+ u16 xid;
+ struct fcoe_err_report_entry err_entry;
+ struct fcoe_task_ctx_entry *task;
+ struct io_bdt *bd_tbl;
+ struct fcp_rsp *rsp;
+ size_t data_xfer_len;
+ unsigned long req_flags;
+#define BNX2FC_FLAG_ISSUE_RRQ 0x1
+#define BNX2FC_FLAG_ISSUE_ABTS 0x2
+#define BNX2FC_FLAG_ABTS_DONE 0x3
+#define BNX2FC_FLAG_TM_COMPL 0x4
+#define BNX2FC_FLAG_TM_TIMEOUT 0x5
+#define BNX2FC_FLAG_IO_CLEANUP 0x6
+#define BNX2FC_FLAG_RETIRE_OXID 0x7
+#define BNX2FC_FLAG_EH_ABORT 0x8
+#define BNX2FC_FLAG_IO_COMPL 0x9
+#define BNX2FC_FLAG_ELS_DONE 0xa
+#define BNX2FC_FLAG_ELS_TIMEOUT 0xb
+#define BNX2FC_FLAG_CMD_LOST 0xc
+#define BNX2FC_FLAG_SRR_SENT 0xd
+ u8 rec_retry;
+ u8 srr_retry;
+ u32 srr_offset;
+ u8 srr_rctl;
+ u32 fcp_resid;
+ u32 fcp_rsp_len;
+ u32 fcp_sns_len;
+ u8 cdb_status; /* SCSI IO status */
+ u8 fcp_status; /* FCP IO status */
+ u8 fcp_rsp_code;
+ u8 scsi_comp_flags;
+};
+
+struct io_bdt {
+ struct bnx2fc_cmd *io_req;
+ struct fcoe_bd_ctx *bd_tbl;
+ dma_addr_t bd_tbl_dma;
+ u16 bd_valid;
+};
+
+struct bnx2fc_work {
+ struct list_head list;
+ struct bnx2fc_rport *tgt;
+ u16 wqe;
+};
+struct bnx2fc_unsol_els {
+ struct fc_lport *lport;
+ struct fc_frame *fp;
+ struct bnx2fc_hba *hba;
+ struct work_struct unsol_els_work;
+};
+
+
+
+struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt);
+struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type);
+void bnx2fc_cmd_release(struct kref *ref);
+int bnx2fc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd);
+int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba);
+int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba);
+int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt);
+int bnx2fc_send_session_enable_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt);
+int bnx2fc_send_session_disable_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt);
+int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt);
+int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt);
+void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
+ u32 num_cqe);
+int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba);
+void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba);
+int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba);
+void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba);
+struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba);
+void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr);
+void bnx2fc_get_link_state(struct bnx2fc_hba *hba);
+char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items);
+void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items);
+int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen);
+int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req);
+int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp);
+int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp);
+int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp);
+int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req);
+int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req);
+void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
+ unsigned int timer_msec);
+int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req);
+void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u16 orig_xid);
+void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnup_req,
+ struct fcoe_task_ctx_entry *task,
+ struct bnx2fc_cmd *orig_io_req,
+ u32 offset);
+void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task);
+void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task);
+void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid);
+void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt);
+int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd);
+int bnx2fc_eh_host_reset(struct scsi_cmnd *sc_cmd);
+int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd);
+int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd);
+void bnx2fc_rport_event_handler(struct fc_lport *lport,
+ struct fc_rport_priv *rport,
+ enum fc_rport_event event);
+void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq);
+void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq);
+void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq);
+void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq);
+void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq);
+void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
+ struct fcp_cmnd *fcp_cmnd);
+
+
+
+void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt);
+struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
+ struct fc_frame *fp, unsigned int op,
+ void (*resp)(struct fc_seq *,
+ struct fc_frame *,
+ void *),
+ void *arg, u32 timeout);
+void bnx2fc_arm_cq(struct bnx2fc_rport *tgt);
+int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt);
+void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe);
+struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
+ u32 port_id);
+void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
+ unsigned char *buf,
+ u32 frame_len, u16 l2_oxid);
+int bnx2fc_send_stat_req(struct bnx2fc_hba *hba);
+int bnx2fc_post_io_req(struct bnx2fc_rport *tgt, struct bnx2fc_cmd *io_req);
+int bnx2fc_send_rec(struct bnx2fc_cmd *orig_io_req);
+int bnx2fc_send_srr(struct bnx2fc_cmd *orig_io_req, u32 offset, u8 r_ctl);
+void bnx2fc_process_seq_cleanup_compl(struct bnx2fc_cmd *seq_clnup_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 rx_state);
+int bnx2fc_initiate_seq_cleanup(struct bnx2fc_cmd *orig_io_req, u32 offset,
+ enum fc_rctl r_ctl);
+
+
+#include "bnx2fc_debug.h"
+
+#endif
diff --git a/drivers/scsi/bnx2fc/bnx2fc_constants.h b/drivers/scsi/bnx2fc/bnx2fc_constants.h
new file mode 100644
index 00000000000..dad9924abbb
--- /dev/null
+++ b/drivers/scsi/bnx2fc/bnx2fc_constants.h
@@ -0,0 +1,274 @@
+#ifndef __BNX2FC_CONSTANTS_H_
+#define __BNX2FC_CONSTANTS_H_
+
+/**
+ * This file defines HSI constants for the FCoE flows
+ */
+
+/* Current FCoE HSI version number composed of two fields (16 bit) */
+/* Implies on a change broken previous HSI */
+#define FCOE_HSI_MAJOR_VERSION (2)
+/* Implies on a change which does not broken previous HSI */
+#define FCOE_HSI_MINOR_VERSION (1)
+
+/* KWQ/KCQ FCoE layer code */
+#define FCOE_KWQE_LAYER_CODE (7)
+
+/* KWQ (kernel work queue) request op codes */
+#define FCOE_KWQE_OPCODE_INIT1 (0)
+#define FCOE_KWQE_OPCODE_INIT2 (1)
+#define FCOE_KWQE_OPCODE_INIT3 (2)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN1 (3)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN2 (4)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN3 (5)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN4 (6)
+#define FCOE_KWQE_OPCODE_ENABLE_CONN (7)
+#define FCOE_KWQE_OPCODE_DISABLE_CONN (8)
+#define FCOE_KWQE_OPCODE_DESTROY_CONN (9)
+#define FCOE_KWQE_OPCODE_DESTROY (10)
+#define FCOE_KWQE_OPCODE_STAT (11)
+
+/* KCQ (kernel completion queue) response op codes */
+#define FCOE_KCQE_OPCODE_INIT_FUNC (0x10)
+#define FCOE_KCQE_OPCODE_DESTROY_FUNC (0x11)
+#define FCOE_KCQE_OPCODE_STAT_FUNC (0x12)
+#define FCOE_KCQE_OPCODE_OFFLOAD_CONN (0x15)
+#define FCOE_KCQE_OPCODE_ENABLE_CONN (0x16)
+#define FCOE_KCQE_OPCODE_DISABLE_CONN (0x17)
+#define FCOE_KCQE_OPCODE_DESTROY_CONN (0x18)
+#define FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION (0x20)
+#define FCOE_KCQE_OPCODE_FCOE_ERROR (0x21)
+
+/* KCQ (kernel completion queue) completion status */
+#define FCOE_KCQE_COMPLETION_STATUS_SUCCESS (0x0)
+#define FCOE_KCQE_COMPLETION_STATUS_ERROR (0x1)
+#define FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE (0x2)
+#define FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE (0x3)
+#define FCOE_KCQE_COMPLETION_STATUS_CTX_FREE_FAILURE (0x4)
+#define FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR (0x5)
+#define FCOE_KCQE_COMPLETION_STATUS_WRONG_HSI_VERSION (0x6)
+#define FCOE_KCQE_COMPLETION_STATUS_PARITY_ERROR (0x81)
+
+/* CQE type */
+#define FCOE_PENDING_CQE_TYPE 0
+#define FCOE_UNSOLIC_CQE_TYPE 1
+
+/* Unsolicited CQE type */
+#define FCOE_UNSOLICITED_FRAME_CQE_TYPE 0
+#define FCOE_ERROR_DETECTION_CQE_TYPE 1
+#define FCOE_WARNING_DETECTION_CQE_TYPE 2
+
+/* E_D_TOV timer resolution in ms */
+#define FCOE_E_D_TOV_TIMER_RESOLUTION_MS (20)
+
+/* E_D_TOV timer resolution for SDM (4 micro) */
+#define FCOE_E_D_TOV_SDM_TIMER_RESOLUTION \
+ (FCOE_E_D_TOV_TIMER_RESOLUTION_MS * 1000 / 4)
+
+/* REC timer resolution in ms */
+#define FCOE_REC_TIMER_RESOLUTION_MS (20)
+
+/* REC timer resolution for SDM (4 micro) */
+#define FCOE_REC_SDM_TIMER_RESOLUTION (FCOE_REC_TIMER_RESOLUTION_MS * 1000 / 4)
+
+/* E_D_TOV timer default wraparound value (2 sec) in 20 ms resolution */
+#define FCOE_E_D_TOV_DEFAULT_WRAPAROUND_VAL \
+ (2000 / FCOE_E_D_TOV_TIMER_RESOLUTION_MS)
+
+/* REC_TOV timer default wraparound value (3 sec) in 20 ms resolution */
+#define FCOE_REC_TOV_DEFAULT_WRAPAROUND_VAL \
+ (3000 / FCOE_REC_TIMER_RESOLUTION_MS)
+
+#define FCOE_NUM_OF_TIMER_TASKS (8 * 1024)
+
+#define FCOE_NUM_OF_CACHED_TASKS_TIMER (8)
+
+/* Task context constants */
+/******** Remove FCP_CMD write tce sleep ***********************/
+/* In case timer services are required then shall be updated by Xstorm after
+ * start processing the task. In case no timer facilities are required then the
+ * driver would initialize the state to this value
+ *
+#define FCOE_TASK_TX_STATE_NORMAL 0
+ * After driver has initialize the task in case timer services required *
+#define FCOE_TASK_TX_STATE_INIT 1
+******** Remove FCP_CMD write tce sleep ***********************/
+/* After driver has initialize the task in case timer services required */
+#define FCOE_TASK_TX_STATE_INIT 0
+/* In case timer services are required then shall be updated by Xstorm after
+ * start processing the task. In case no timer facilities are required then the
+ * driver would initialize the state to this value
+ */
+#define FCOE_TASK_TX_STATE_NORMAL 1
+/* Task is under abort procedure. Updated in order to stop processing of
+ * pending WQEs on this task
+ */
+#define FCOE_TASK_TX_STATE_ABORT 2
+/* For E_D_T_TOV timer expiration in Xstorm (Class 2 only) */
+#define FCOE_TASK_TX_STATE_ERROR 3
+/* For REC_TOV timer expiration indication received from Xstorm */
+#define FCOE_TASK_TX_STATE_WARNING 4
+/* For completed unsolicited task */
+#define FCOE_TASK_TX_STATE_UNSOLICITED_COMPLETED 5
+/* For exchange cleanup request task */
+#define FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP 6
+/* For sequence cleanup request task */
+#define FCOE_TASK_TX_STATE_SEQUENCE_CLEANUP 7
+/* For completion the ABTS task. */
+#define FCOE_TASK_TX_STATE_ABTS_TX 8
+
+#define FCOE_TASK_RX_STATE_NORMAL 0
+#define FCOE_TASK_RX_STATE_COMPLETED 1
+/* Obsolete: Intermediate completion (middle path with local completion) */
+#define FCOE_TASK_RX_STATE_INTER_COMP 2
+/* For REC_TOV timer expiration indication received from Xstorm */
+#define FCOE_TASK_RX_STATE_WARNING 3
+/* For E_D_T_TOV timer expiration in Ustorm */
+#define FCOE_TASK_RX_STATE_ERROR 4
+/* FW only: First visit at rx-path, part of the abts round trip */
+#define FCOE_TASK_RX_STATE_ABTS_IN_PROCESS 5
+/* FW only: Second visit at rx-path, after ABTS frame transmitted */
+#define FCOE_TASK_RX_STATE_ABTS_TRANSMITTED 6
+/* Special completion indication in case of task was aborted. */
+#define FCOE_TASK_RX_STATE_ABTS_COMPLETED 7
+/* FW only: First visit at rx-path, part of the cleanup round trip */
+#define FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_IN_PROCESS 8
+/* FW only: Special completion indication in case of task was cleaned. */
+#define FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED 9
+/* Not in used: Special completion indication (in task requested the exchange
+ * cleanup) in case cleaned task is in non-valid.
+ */
+#define FCOE_TASK_RX_STATE_ABORT_CLEANUP_COMPLETED 10
+/* Special completion indication (in task requested the sequence cleanup) in
+ * case cleaned task was already returned to normal.
+ */
+#define FCOE_TASK_RX_STATE_IGNORED_SEQUENCE_CLEANUP 11
+
+
+#define FCOE_TASK_TYPE_WRITE 0
+#define FCOE_TASK_TYPE_READ 1
+#define FCOE_TASK_TYPE_MIDPATH 2
+#define FCOE_TASK_TYPE_UNSOLICITED 3
+#define FCOE_TASK_TYPE_ABTS 4
+#define FCOE_TASK_TYPE_EXCHANGE_CLEANUP 5
+#define FCOE_TASK_TYPE_SEQUENCE_CLEANUP 6
+
+#define FCOE_TASK_DEV_TYPE_DISK 0
+#define FCOE_TASK_DEV_TYPE_TAPE 1
+
+#define FCOE_TASK_CLASS_TYPE_3 0
+#define FCOE_TASK_CLASS_TYPE_2 1
+
+/* FCoE/FC packet fields */
+#define FCOE_ETH_TYPE 0x8906
+
+/* FCoE maximum elements in hash table */
+#define FCOE_MAX_ELEMENTS_IN_HASH_TABLE_ROW 8
+
+/* FCoE half of the elements in hash table */
+#define FCOE_HALF_ELEMENTS_IN_HASH_TABLE_ROW \
+ (FCOE_MAX_ELEMENTS_IN_HASH_TABLE_ROW / 2)
+
+/* FcoE number of cached T2 entries */
+#define T_FCOE_NUMBER_OF_CACHED_T2_ENTRIES (4)
+
+/* FCoE maximum elements in hash table */
+#define FCOE_HASH_TBL_CHUNK_SIZE 16384
+
+/* Everest FCoE connection type */
+#define B577XX_FCOE_CONNECTION_TYPE 4
+
+/* FCoE number of rows (in log). This number derives
+ * from the maximum connections supported which is 2048.
+ * TBA: Need a different constant for E2
+ */
+#define FCOE_MAX_NUM_SESSIONS_LOG 11
+
+#define FC_ABTS_REPLY_MAX_PAYLOAD_LEN 12
+
+/* Error codes for Error Reporting in slow path flows */
+#define FCOE_SLOW_PATH_ERROR_CODE_TOO_MANY_FUNCS 0
+#define FCOE_SLOW_PATH_ERROR_CODE_NO_LICENSE 1
+
+/* Error codes for Error Reporting in fast path flows
+ * XFER error codes
+ */
+#define FCOE_ERROR_CODE_XFER_OOO_RO 0
+#define FCOE_ERROR_CODE_XFER_RO_NOT_ALIGNED 1
+#define FCOE_ERROR_CODE_XFER_NULL_BURST_LEN 2
+#define FCOE_ERROR_CODE_XFER_RO_GREATER_THAN_DATA2TRNS 3
+#define FCOE_ERROR_CODE_XFER_INVALID_PAYLOAD_SIZE 4
+#define FCOE_ERROR_CODE_XFER_TASK_TYPE_NOT_WRITE 5
+#define FCOE_ERROR_CODE_XFER_PEND_XFER_SET 6
+#define FCOE_ERROR_CODE_XFER_OPENED_SEQ 7
+#define FCOE_ERROR_CODE_XFER_FCTL 8
+
+/* FCP RSP error codes */
+#define FCOE_ERROR_CODE_FCP_RSP_BIDI_FLAGS_SET 9
+#define FCOE_ERROR_CODE_FCP_RSP_UNDERFLOW 10
+#define FCOE_ERROR_CODE_FCP_RSP_OVERFLOW 11
+#define FCOE_ERROR_CODE_FCP_RSP_INVALID_LENGTH_FIELD 12
+#define FCOE_ERROR_CODE_FCP_RSP_INVALID_SNS_FIELD 13
+#define FCOE_ERROR_CODE_FCP_RSP_INVALID_PAYLOAD_SIZE 14
+#define FCOE_ERROR_CODE_FCP_RSP_PEND_XFER_SET 15
+#define FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ 16
+#define FCOE_ERROR_CODE_FCP_RSP_FCTL 17
+#define FCOE_ERROR_CODE_FCP_RSP_LAST_SEQ_RESET 18
+#define FCOE_ERROR_CODE_FCP_RSP_CONF_REQ_NOT_SUPPORTED_YET 19
+
+/* FCP DATA error codes */
+#define FCOE_ERROR_CODE_DATA_OOO_RO 20
+#define FCOE_ERROR_CODE_DATA_EXCEEDS_DEFINED_MAX_FRAME_SIZE 21
+#define FCOE_ERROR_CODE_DATA_EXCEEDS_DATA2TRNS 22
+#define FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET 23
+#define FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET 24
+#define FCOE_ERROR_CODE_DATA_EOFN_END_SEQ_SET 25
+#define FCOE_ERROR_CODE_DATA_EOFT_END_SEQ_RESET 26
+#define FCOE_ERROR_CODE_DATA_TASK_TYPE_NOT_READ 27
+#define FCOE_ERROR_CODE_DATA_FCTL 28
+
+/* Middle path error codes */
+#define FCOE_ERROR_CODE_MIDPATH_INVALID_TYPE 29
+#define FCOE_ERROR_CODE_MIDPATH_SOFI3_SEQ_ACTIVE_SET 30
+#define FCOE_ERROR_CODE_MIDPATH_SOFN_SEQ_ACTIVE_RESET 31
+#define FCOE_ERROR_CODE_MIDPATH_EOFN_END_SEQ_SET 32
+#define FCOE_ERROR_CODE_MIDPATH_EOFT_END_SEQ_RESET 33
+#define FCOE_ERROR_CODE_MIDPATH_REPLY_FCTL 34
+#define FCOE_ERROR_CODE_MIDPATH_INVALID_REPLY 35
+#define FCOE_ERROR_CODE_MIDPATH_ELS_REPLY_RCTL 36
+
+/* ABTS error codes */
+#define FCOE_ERROR_CODE_ABTS_REPLY_F_CTL 37
+#define FCOE_ERROR_CODE_ABTS_REPLY_DDF_RCTL_FIELD 38
+#define FCOE_ERROR_CODE_ABTS_REPLY_INVALID_BLS_RCTL 39
+#define FCOE_ERROR_CODE_ABTS_REPLY_INVALID_RCTL 40
+#define FCOE_ERROR_CODE_ABTS_REPLY_RCTL_GENERAL_MISMATCH 41
+
+/* Common error codes */
+#define FCOE_ERROR_CODE_COMMON_MIDDLE_FRAME_WITH_PAD 42
+#define FCOE_ERROR_CODE_COMMON_SEQ_INIT_IN_TCE 43
+#define FCOE_ERROR_CODE_COMMON_FC_HDR_RX_ID_MISMATCH 44
+#define FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT 45
+#define FCOE_ERROR_CODE_COMMON_DATA_FC_HDR_FCP_TYPE_MISMATCH 46
+#define FCOE_ERROR_CODE_COMMON_DATA_NO_MORE_SGES 47
+#define FCOE_ERROR_CODE_COMMON_OPTIONAL_FC_HDR 48
+#define FCOE_ERROR_CODE_COMMON_READ_TCE_OX_ID_TOO_BIG 49
+#define FCOE_ERROR_CODE_COMMON_DATA_WAS_NOT_TRANSMITTED 50
+
+/* Unsolicited Rx error codes */
+#define FCOE_ERROR_CODE_UNSOLICITED_TYPE_NOT_ELS 51
+#define FCOE_ERROR_CODE_UNSOLICITED_TYPE_NOT_BLS 52
+#define FCOE_ERROR_CODE_UNSOLICITED_FCTL_ELS 53
+#define FCOE_ERROR_CODE_UNSOLICITED_FCTL_BLS 54
+#define FCOE_ERROR_CODE_UNSOLICITED_R_CTL 55
+
+#define FCOE_ERROR_CODE_RW_TASK_DDF_RCTL_INFO_FIELD 56
+#define FCOE_ERROR_CODE_RW_TASK_INVALID_RCTL 57
+#define FCOE_ERROR_CODE_RW_TASK_RCTL_GENERAL_MISMATCH 58
+
+/* Timer error codes */
+#define FCOE_ERROR_CODE_E_D_TOV_TIMER_EXPIRATION 60
+#define FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION 61
+
+
+#endif /* BNX2FC_CONSTANTS_H_ */
diff --git a/drivers/scsi/bnx2fc/bnx2fc_debug.c b/drivers/scsi/bnx2fc/bnx2fc_debug.c
new file mode 100644
index 00000000000..0cbee1b23ee
--- /dev/null
+++ b/drivers/scsi/bnx2fc/bnx2fc_debug.c
@@ -0,0 +1,70 @@
+#include "bnx2fc.h"
+
+void BNX2FC_IO_DBG(const struct bnx2fc_cmd *io_req, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ if (likely(!(bnx2fc_debug_level & LOG_IO)))
+ return;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ if (io_req && io_req->port && io_req->port->lport &&
+ io_req->port->lport->host)
+ shost_printk(KERN_INFO, io_req->port->lport->host,
+ PFX "xid:0x%x %pV",
+ io_req->xid, &vaf);
+ else
+ pr_info("NULL %pV", &vaf);
+
+ va_end(args);
+}
+
+void BNX2FC_TGT_DBG(const struct bnx2fc_rport *tgt, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ if (likely(!(bnx2fc_debug_level & LOG_TGT)))
+ return;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ if (tgt && tgt->port && tgt->port->lport && tgt->port->lport->host &&
+ tgt->rport)
+ shost_printk(KERN_INFO, tgt->port->lport->host,
+ PFX "port:%x %pV",
+ tgt->rport->port_id, &vaf);
+ else
+ pr_info("NULL %pV", &vaf);
+
+ va_end(args);
+}
+
+void BNX2FC_HBA_DBG(const struct fc_lport *lport, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ if (likely(!(bnx2fc_debug_level & LOG_HBA)))
+ return;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ if (lport && lport->host)
+ shost_printk(KERN_INFO, lport->host, PFX "%pV", &vaf);
+ else
+ pr_info("NULL %pV", &vaf);
+
+ va_end(args);
+}
diff --git a/drivers/scsi/bnx2fc/bnx2fc_debug.h b/drivers/scsi/bnx2fc/bnx2fc_debug.h
new file mode 100644
index 00000000000..4808ff99621
--- /dev/null
+++ b/drivers/scsi/bnx2fc/bnx2fc_debug.h
@@ -0,0 +1,33 @@
+#ifndef __BNX2FC_DEBUG__
+#define __BNX2FC_DEBUG__
+
+/* Log level bit mask */
+#define LOG_IO 0x01 /* scsi cmd error, cleanup */
+#define LOG_TGT 0x02 /* Session setup, cleanup, etc' */
+#define LOG_HBA 0x04 /* lport events, link, mtu, etc' */
+#define LOG_ELS 0x08 /* ELS logs */
+#define LOG_MISC 0x10 /* fcoe L2 frame related logs*/
+#define LOG_ALL 0xff /* LOG all messages */
+
+extern unsigned int bnx2fc_debug_level;
+
+#define BNX2FC_ELS_DBG(fmt, ...) \
+do { \
+ if (unlikely(bnx2fc_debug_level & LOG_ELS)) \
+ pr_info(fmt, ##__VA_ARGS__); \
+} while (0)
+
+#define BNX2FC_MISC_DBG(fmt, ...) \
+do { \
+ if (unlikely(bnx2fc_debug_level & LOG_MISC)) \
+ pr_info(fmt, ##__VA_ARGS__); \
+} while (0)
+
+__printf(2, 3)
+void BNX2FC_IO_DBG(const struct bnx2fc_cmd *io_req, const char *fmt, ...);
+__printf(2, 3)
+void BNX2FC_TGT_DBG(const struct bnx2fc_rport *tgt, const char *fmt, ...);
+__printf(2, 3)
+void BNX2FC_HBA_DBG(const struct fc_lport *lport, const char *fmt, ...);
+
+#endif
diff --git a/drivers/scsi/bnx2fc/bnx2fc_els.c b/drivers/scsi/bnx2fc/bnx2fc_els.c
new file mode 100644
index 00000000000..b1c9a4f8cae
--- /dev/null
+++ b/drivers/scsi/bnx2fc/bnx2fc_els.c
@@ -0,0 +1,919 @@
+/*
+ * bnx2fc_els.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * This file contains helper routines that handle ELS requests
+ * and responses.
+ *
+ * Copyright (c) 2008 - 2013 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+static void bnx2fc_logo_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg);
+static void bnx2fc_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg);
+static int bnx2fc_initiate_els(struct bnx2fc_rport *tgt, unsigned int op,
+ void *data, u32 data_len,
+ void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg),
+ struct bnx2fc_els_cb_arg *cb_arg, u32 timer_msec);
+
+static void bnx2fc_rrq_compl(struct bnx2fc_els_cb_arg *cb_arg)
+{
+ struct bnx2fc_cmd *orig_io_req;
+ struct bnx2fc_cmd *rrq_req;
+ int rc = 0;
+
+ BUG_ON(!cb_arg);
+ rrq_req = cb_arg->io_req;
+ orig_io_req = cb_arg->aborted_io_req;
+ BUG_ON(!orig_io_req);
+ BNX2FC_ELS_DBG("rrq_compl: orig xid = 0x%x, rrq_xid = 0x%x\n",
+ orig_io_req->xid, rrq_req->xid);
+
+ kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
+
+ if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &rrq_req->req_flags)) {
+ /*
+ * els req is timed out. cleanup the IO with FW and
+ * drop the completion. Remove from active_cmd_queue.
+ */
+ BNX2FC_ELS_DBG("rrq xid - 0x%x timed out, clean it up\n",
+ rrq_req->xid);
+
+ if (rrq_req->on_active_queue) {
+ list_del_init(&rrq_req->link);
+ rrq_req->on_active_queue = 0;
+ rc = bnx2fc_initiate_cleanup(rrq_req);
+ BUG_ON(rc);
+ }
+ }
+ kfree(cb_arg);
+}
+int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req)
+{
+
+ struct fc_els_rrq rrq;
+ struct bnx2fc_rport *tgt = aborted_io_req->tgt;
+ struct fc_lport *lport = tgt->rdata->local_port;
+ struct bnx2fc_els_cb_arg *cb_arg = NULL;
+ u32 sid = tgt->sid;
+ u32 r_a_tov = lport->r_a_tov;
+ unsigned long start = jiffies;
+ int rc;
+
+ BNX2FC_ELS_DBG("Sending RRQ orig_xid = 0x%x\n",
+ aborted_io_req->xid);
+ memset(&rrq, 0, sizeof(rrq));
+
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to allocate cb_arg for RRQ\n");
+ rc = -ENOMEM;
+ goto rrq_err;
+ }
+
+ cb_arg->aborted_io_req = aborted_io_req;
+
+ rrq.rrq_cmd = ELS_RRQ;
+ hton24(rrq.rrq_s_id, sid);
+ rrq.rrq_ox_id = htons(aborted_io_req->xid);
+ rrq.rrq_rx_id = htons(aborted_io_req->task->rxwr_txrd.var_ctx.rx_id);
+
+retry_rrq:
+ rc = bnx2fc_initiate_els(tgt, ELS_RRQ, &rrq, sizeof(rrq),
+ bnx2fc_rrq_compl, cb_arg,
+ r_a_tov);
+ if (rc == -ENOMEM) {
+ if (time_after(jiffies, start + (10 * HZ))) {
+ BNX2FC_ELS_DBG("rrq Failed\n");
+ rc = FAILED;
+ goto rrq_err;
+ }
+ msleep(20);
+ goto retry_rrq;
+ }
+rrq_err:
+ if (rc) {
+ BNX2FC_ELS_DBG("RRQ failed - release orig io req 0x%x\n",
+ aborted_io_req->xid);
+ kfree(cb_arg);
+ spin_lock_bh(&tgt->tgt_lock);
+ kref_put(&aborted_io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ }
+ return rc;
+}
+
+static void bnx2fc_l2_els_compl(struct bnx2fc_els_cb_arg *cb_arg)
+{
+ struct bnx2fc_cmd *els_req;
+ struct bnx2fc_rport *tgt;
+ struct bnx2fc_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ unsigned char *buf;
+ void *resp_buf;
+ u32 resp_len, hdr_len;
+ u16 l2_oxid;
+ int frame_len;
+ int rc = 0;
+
+ l2_oxid = cb_arg->l2_oxid;
+ BNX2FC_ELS_DBG("ELS COMPL - l2_oxid = 0x%x\n", l2_oxid);
+
+ els_req = cb_arg->io_req;
+ if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &els_req->req_flags)) {
+ /*
+ * els req is timed out. cleanup the IO with FW and
+ * drop the completion. libfc will handle the els timeout
+ */
+ if (els_req->on_active_queue) {
+ list_del_init(&els_req->link);
+ els_req->on_active_queue = 0;
+ rc = bnx2fc_initiate_cleanup(els_req);
+ BUG_ON(rc);
+ }
+ goto free_arg;
+ }
+
+ tgt = els_req->tgt;
+ mp_req = &(els_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ resp_buf = mp_req->resp_buf;
+
+ buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
+ if (!buf) {
+ printk(KERN_ERR PFX "Unable to alloc mp buf\n");
+ goto free_arg;
+ }
+ hdr_len = sizeof(*fc_hdr);
+ if (hdr_len + resp_len > PAGE_SIZE) {
+ printk(KERN_ERR PFX "l2_els_compl: resp len is "
+ "beyond page size\n");
+ goto free_buf;
+ }
+ memcpy(buf, fc_hdr, hdr_len);
+ memcpy(buf + hdr_len, resp_buf, resp_len);
+ frame_len = hdr_len + resp_len;
+
+ bnx2fc_process_l2_frame_compl(tgt, buf, frame_len, l2_oxid);
+
+free_buf:
+ kfree(buf);
+free_arg:
+ kfree(cb_arg);
+}
+
+int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp)
+{
+ struct fc_els_adisc *adisc;
+ struct fc_frame_header *fh;
+ struct bnx2fc_els_cb_arg *cb_arg;
+ struct fc_lport *lport = tgt->rdata->local_port;
+ u32 r_a_tov = lport->r_a_tov;
+ int rc;
+
+ fh = fc_frame_header_get(fp);
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to allocate cb_arg for ADISC\n");
+ return -ENOMEM;
+ }
+
+ cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+ BNX2FC_ELS_DBG("send ADISC: l2_oxid = 0x%x\n", cb_arg->l2_oxid);
+ adisc = fc_frame_payload_get(fp, sizeof(*adisc));
+ /* adisc is initialized by libfc */
+ rc = bnx2fc_initiate_els(tgt, ELS_ADISC, adisc, sizeof(*adisc),
+ bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
+ if (rc)
+ kfree(cb_arg);
+ return rc;
+}
+
+int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp)
+{
+ struct fc_els_logo *logo;
+ struct fc_frame_header *fh;
+ struct bnx2fc_els_cb_arg *cb_arg;
+ struct fc_lport *lport = tgt->rdata->local_port;
+ u32 r_a_tov = lport->r_a_tov;
+ int rc;
+
+ fh = fc_frame_header_get(fp);
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to allocate cb_arg for LOGO\n");
+ return -ENOMEM;
+ }
+
+ cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+ BNX2FC_ELS_DBG("Send LOGO: l2_oxid = 0x%x\n", cb_arg->l2_oxid);
+ logo = fc_frame_payload_get(fp, sizeof(*logo));
+ /* logo is initialized by libfc */
+ rc = bnx2fc_initiate_els(tgt, ELS_LOGO, logo, sizeof(*logo),
+ bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
+ if (rc)
+ kfree(cb_arg);
+ return rc;
+}
+
+int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp)
+{
+ struct fc_els_rls *rls;
+ struct fc_frame_header *fh;
+ struct bnx2fc_els_cb_arg *cb_arg;
+ struct fc_lport *lport = tgt->rdata->local_port;
+ u32 r_a_tov = lport->r_a_tov;
+ int rc;
+
+ fh = fc_frame_header_get(fp);
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to allocate cb_arg for LOGO\n");
+ return -ENOMEM;
+ }
+
+ cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+ rls = fc_frame_payload_get(fp, sizeof(*rls));
+ /* rls is initialized by libfc */
+ rc = bnx2fc_initiate_els(tgt, ELS_RLS, rls, sizeof(*rls),
+ bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
+ if (rc)
+ kfree(cb_arg);
+ return rc;
+}
+
+void bnx2fc_srr_compl(struct bnx2fc_els_cb_arg *cb_arg)
+{
+ struct bnx2fc_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr, *fh;
+ struct bnx2fc_cmd *srr_req;
+ struct bnx2fc_cmd *orig_io_req;
+ struct fc_frame *fp;
+ unsigned char *buf;
+ void *resp_buf;
+ u32 resp_len, hdr_len;
+ u8 opcode;
+ int rc = 0;
+
+ orig_io_req = cb_arg->aborted_io_req;
+ srr_req = cb_arg->io_req;
+ if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &srr_req->req_flags)) {
+ /* SRR timedout */
+ BNX2FC_IO_DBG(srr_req, "srr timed out, abort "
+ "orig_io - 0x%x\n",
+ orig_io_req->xid);
+ rc = bnx2fc_initiate_abts(srr_req);
+ if (rc != SUCCESS) {
+ BNX2FC_IO_DBG(srr_req, "srr_compl: initiate_abts "
+ "failed. issue cleanup\n");
+ bnx2fc_initiate_cleanup(srr_req);
+ }
+ if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags) ||
+ test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) {
+ BNX2FC_IO_DBG(srr_req, "srr_compl:xid 0x%x flags = %lx",
+ orig_io_req->xid, orig_io_req->req_flags);
+ goto srr_compl_done;
+ }
+ orig_io_req->srr_retry++;
+ if (orig_io_req->srr_retry <= SRR_RETRY_COUNT) {
+ struct bnx2fc_rport *tgt = orig_io_req->tgt;
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = bnx2fc_send_srr(orig_io_req,
+ orig_io_req->srr_offset,
+ orig_io_req->srr_rctl);
+ spin_lock_bh(&tgt->tgt_lock);
+ if (!rc)
+ goto srr_compl_done;
+ }
+
+ rc = bnx2fc_initiate_abts(orig_io_req);
+ if (rc != SUCCESS) {
+ BNX2FC_IO_DBG(srr_req, "srr_compl: initiate_abts "
+ "failed xid = 0x%x. issue cleanup\n",
+ orig_io_req->xid);
+ bnx2fc_initiate_cleanup(orig_io_req);
+ }
+ goto srr_compl_done;
+ }
+ if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags) ||
+ test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) {
+ BNX2FC_IO_DBG(srr_req, "srr_compl:xid - 0x%x flags = %lx",
+ orig_io_req->xid, orig_io_req->req_flags);
+ goto srr_compl_done;
+ }
+ mp_req = &(srr_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ resp_buf = mp_req->resp_buf;
+
+ hdr_len = sizeof(*fc_hdr);
+ buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
+ if (!buf) {
+ printk(KERN_ERR PFX "srr buf: mem alloc failure\n");
+ goto srr_compl_done;
+ }
+ memcpy(buf, fc_hdr, hdr_len);
+ memcpy(buf + hdr_len, resp_buf, resp_len);
+
+ fp = fc_frame_alloc(NULL, resp_len);
+ if (!fp) {
+ printk(KERN_ERR PFX "fc_frame_alloc failure\n");
+ goto free_buf;
+ }
+
+ fh = (struct fc_frame_header *) fc_frame_header_get(fp);
+ /* Copy FC Frame header and payload into the frame */
+ memcpy(fh, buf, hdr_len + resp_len);
+
+ opcode = fc_frame_payload_op(fp);
+ switch (opcode) {
+ case ELS_LS_ACC:
+ BNX2FC_IO_DBG(srr_req, "SRR success\n");
+ break;
+ case ELS_LS_RJT:
+ BNX2FC_IO_DBG(srr_req, "SRR rejected\n");
+ rc = bnx2fc_initiate_abts(orig_io_req);
+ if (rc != SUCCESS) {
+ BNX2FC_IO_DBG(srr_req, "srr_compl: initiate_abts "
+ "failed xid = 0x%x. issue cleanup\n",
+ orig_io_req->xid);
+ bnx2fc_initiate_cleanup(orig_io_req);
+ }
+ break;
+ default:
+ BNX2FC_IO_DBG(srr_req, "srr compl - invalid opcode = %d\n",
+ opcode);
+ break;
+ }
+ fc_frame_free(fp);
+free_buf:
+ kfree(buf);
+srr_compl_done:
+ kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
+}
+
+void bnx2fc_rec_compl(struct bnx2fc_els_cb_arg *cb_arg)
+{
+ struct bnx2fc_cmd *orig_io_req, *new_io_req;
+ struct bnx2fc_cmd *rec_req;
+ struct bnx2fc_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr, *fh;
+ struct fc_els_ls_rjt *rjt;
+ struct fc_els_rec_acc *acc;
+ struct bnx2fc_rport *tgt;
+ struct fcoe_err_report_entry *err_entry;
+ struct scsi_cmnd *sc_cmd;
+ enum fc_rctl r_ctl;
+ unsigned char *buf;
+ void *resp_buf;
+ struct fc_frame *fp;
+ u8 opcode;
+ u32 offset;
+ u32 e_stat;
+ u32 resp_len, hdr_len;
+ int rc = 0;
+ bool send_seq_clnp = false;
+ bool abort_io = false;
+
+ BNX2FC_MISC_DBG("Entered rec_compl callback\n");
+ rec_req = cb_arg->io_req;
+ orig_io_req = cb_arg->aborted_io_req;
+ BNX2FC_IO_DBG(rec_req, "rec_compl: orig xid = 0x%x", orig_io_req->xid);
+ tgt = orig_io_req->tgt;
+
+ /* Handle REC timeout case */
+ if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &rec_req->req_flags)) {
+ BNX2FC_IO_DBG(rec_req, "timed out, abort "
+ "orig_io - 0x%x\n",
+ orig_io_req->xid);
+ /* els req is timed out. send abts for els */
+ rc = bnx2fc_initiate_abts(rec_req);
+ if (rc != SUCCESS) {
+ BNX2FC_IO_DBG(rec_req, "rec_compl: initiate_abts "
+ "failed. issue cleanup\n");
+ bnx2fc_initiate_cleanup(rec_req);
+ }
+ orig_io_req->rec_retry++;
+ /* REC timedout. send ABTS to the orig IO req */
+ if (orig_io_req->rec_retry <= REC_RETRY_COUNT) {
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = bnx2fc_send_rec(orig_io_req);
+ spin_lock_bh(&tgt->tgt_lock);
+ if (!rc)
+ goto rec_compl_done;
+ }
+ rc = bnx2fc_initiate_abts(orig_io_req);
+ if (rc != SUCCESS) {
+ BNX2FC_IO_DBG(rec_req, "rec_compl: initiate_abts "
+ "failed xid = 0x%x. issue cleanup\n",
+ orig_io_req->xid);
+ bnx2fc_initiate_cleanup(orig_io_req);
+ }
+ goto rec_compl_done;
+ }
+
+ if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags)) {
+ BNX2FC_IO_DBG(rec_req, "completed"
+ "orig_io - 0x%x\n",
+ orig_io_req->xid);
+ goto rec_compl_done;
+ }
+ if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) {
+ BNX2FC_IO_DBG(rec_req, "abts in prog "
+ "orig_io - 0x%x\n",
+ orig_io_req->xid);
+ goto rec_compl_done;
+ }
+
+ mp_req = &(rec_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ acc = resp_buf = mp_req->resp_buf;
+
+ hdr_len = sizeof(*fc_hdr);
+
+ buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
+ if (!buf) {
+ printk(KERN_ERR PFX "rec buf: mem alloc failure\n");
+ goto rec_compl_done;
+ }
+ memcpy(buf, fc_hdr, hdr_len);
+ memcpy(buf + hdr_len, resp_buf, resp_len);
+
+ fp = fc_frame_alloc(NULL, resp_len);
+ if (!fp) {
+ printk(KERN_ERR PFX "fc_frame_alloc failure\n");
+ goto free_buf;
+ }
+
+ fh = (struct fc_frame_header *) fc_frame_header_get(fp);
+ /* Copy FC Frame header and payload into the frame */
+ memcpy(fh, buf, hdr_len + resp_len);
+
+ opcode = fc_frame_payload_op(fp);
+ if (opcode == ELS_LS_RJT) {
+ BNX2FC_IO_DBG(rec_req, "opcode is RJT\n");
+ rjt = fc_frame_payload_get(fp, sizeof(*rjt));
+ if ((rjt->er_reason == ELS_RJT_LOGIC ||
+ rjt->er_reason == ELS_RJT_UNAB) &&
+ rjt->er_explan == ELS_EXPL_OXID_RXID) {
+ BNX2FC_IO_DBG(rec_req, "handle CMD LOST case\n");
+ new_io_req = bnx2fc_cmd_alloc(tgt);
+ if (!new_io_req)
+ goto abort_io;
+ new_io_req->sc_cmd = orig_io_req->sc_cmd;
+ /* cleanup orig_io_req that is with the FW */
+ set_bit(BNX2FC_FLAG_CMD_LOST,
+ &orig_io_req->req_flags);
+ bnx2fc_initiate_cleanup(orig_io_req);
+ /* Post a new IO req with the same sc_cmd */
+ BNX2FC_IO_DBG(rec_req, "Post IO request again\n");
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = bnx2fc_post_io_req(tgt, new_io_req);
+ spin_lock_bh(&tgt->tgt_lock);
+ if (!rc)
+ goto free_frame;
+ BNX2FC_IO_DBG(rec_req, "REC: io post err\n");
+ }
+abort_io:
+ rc = bnx2fc_initiate_abts(orig_io_req);
+ if (rc != SUCCESS) {
+ BNX2FC_IO_DBG(rec_req, "rec_compl: initiate_abts "
+ "failed. issue cleanup\n");
+ bnx2fc_initiate_cleanup(orig_io_req);
+ }
+ } else if (opcode == ELS_LS_ACC) {
+ /* REVISIT: Check if the exchange is already aborted */
+ offset = ntohl(acc->reca_fc4value);
+ e_stat = ntohl(acc->reca_e_stat);
+ if (e_stat & ESB_ST_SEQ_INIT) {
+ BNX2FC_IO_DBG(rec_req, "target has the seq init\n");
+ goto free_frame;
+ }
+ BNX2FC_IO_DBG(rec_req, "e_stat = 0x%x, offset = 0x%x\n",
+ e_stat, offset);
+ /* Seq initiative is with us */
+ err_entry = (struct fcoe_err_report_entry *)
+ &orig_io_req->err_entry;
+ sc_cmd = orig_io_req->sc_cmd;
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
+ /* SCSI WRITE command */
+ if (offset == orig_io_req->data_xfer_len) {
+ BNX2FC_IO_DBG(rec_req, "WRITE - resp lost\n");
+ /* FCP_RSP lost */
+ r_ctl = FC_RCTL_DD_CMD_STATUS;
+ offset = 0;
+ } else {
+ /* start transmitting from offset */
+ BNX2FC_IO_DBG(rec_req, "XFER_RDY/DATA lost\n");
+ send_seq_clnp = true;
+ r_ctl = FC_RCTL_DD_DATA_DESC;
+ if (bnx2fc_initiate_seq_cleanup(orig_io_req,
+ offset, r_ctl))
+ abort_io = true;
+ /* XFER_RDY */
+ }
+ } else {
+ /* SCSI READ command */
+ if (err_entry->data.rx_buf_off ==
+ orig_io_req->data_xfer_len) {
+ /* FCP_RSP lost */
+ BNX2FC_IO_DBG(rec_req, "READ - resp lost\n");
+ r_ctl = FC_RCTL_DD_CMD_STATUS;
+ offset = 0;
+ } else {
+ /* request retransmission from this offset */
+ send_seq_clnp = true;
+ offset = err_entry->data.rx_buf_off;
+ BNX2FC_IO_DBG(rec_req, "RD DATA lost\n");
+ /* FCP_DATA lost */
+ r_ctl = FC_RCTL_DD_SOL_DATA;
+ if (bnx2fc_initiate_seq_cleanup(orig_io_req,
+ offset, r_ctl))
+ abort_io = true;
+ }
+ }
+ if (abort_io) {
+ rc = bnx2fc_initiate_abts(orig_io_req);
+ if (rc != SUCCESS) {
+ BNX2FC_IO_DBG(rec_req, "rec_compl:initiate_abts"
+ " failed. issue cleanup\n");
+ bnx2fc_initiate_cleanup(orig_io_req);
+ }
+ } else if (!send_seq_clnp) {
+ BNX2FC_IO_DBG(rec_req, "Send SRR - FCP_RSP\n");
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = bnx2fc_send_srr(orig_io_req, offset, r_ctl);
+ spin_lock_bh(&tgt->tgt_lock);
+
+ if (rc) {
+ BNX2FC_IO_DBG(rec_req, "Unable to send SRR"
+ " IO will abort\n");
+ }
+ }
+ }
+free_frame:
+ fc_frame_free(fp);
+free_buf:
+ kfree(buf);
+rec_compl_done:
+ kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
+ kfree(cb_arg);
+}
+
+int bnx2fc_send_rec(struct bnx2fc_cmd *orig_io_req)
+{
+ struct fc_els_rec rec;
+ struct bnx2fc_rport *tgt = orig_io_req->tgt;
+ struct fc_lport *lport = tgt->rdata->local_port;
+ struct bnx2fc_els_cb_arg *cb_arg = NULL;
+ u32 sid = tgt->sid;
+ u32 r_a_tov = lport->r_a_tov;
+ int rc;
+
+ BNX2FC_IO_DBG(orig_io_req, "Sending REC\n");
+ memset(&rec, 0, sizeof(rec));
+
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to allocate cb_arg for REC\n");
+ rc = -ENOMEM;
+ goto rec_err;
+ }
+ kref_get(&orig_io_req->refcount);
+
+ cb_arg->aborted_io_req = orig_io_req;
+
+ rec.rec_cmd = ELS_REC;
+ hton24(rec.rec_s_id, sid);
+ rec.rec_ox_id = htons(orig_io_req->xid);
+ rec.rec_rx_id = htons(orig_io_req->task->rxwr_txrd.var_ctx.rx_id);
+
+ rc = bnx2fc_initiate_els(tgt, ELS_REC, &rec, sizeof(rec),
+ bnx2fc_rec_compl, cb_arg,
+ r_a_tov);
+rec_err:
+ if (rc) {
+ BNX2FC_IO_DBG(orig_io_req, "REC failed - release\n");
+ spin_lock_bh(&tgt->tgt_lock);
+ kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ kfree(cb_arg);
+ }
+ return rc;
+}
+
+int bnx2fc_send_srr(struct bnx2fc_cmd *orig_io_req, u32 offset, u8 r_ctl)
+{
+ struct fcp_srr srr;
+ struct bnx2fc_rport *tgt = orig_io_req->tgt;
+ struct fc_lport *lport = tgt->rdata->local_port;
+ struct bnx2fc_els_cb_arg *cb_arg = NULL;
+ u32 r_a_tov = lport->r_a_tov;
+ int rc;
+
+ BNX2FC_IO_DBG(orig_io_req, "Sending SRR\n");
+ memset(&srr, 0, sizeof(srr));
+
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to allocate cb_arg for SRR\n");
+ rc = -ENOMEM;
+ goto srr_err;
+ }
+ kref_get(&orig_io_req->refcount);
+
+ cb_arg->aborted_io_req = orig_io_req;
+
+ srr.srr_op = ELS_SRR;
+ srr.srr_ox_id = htons(orig_io_req->xid);
+ srr.srr_rx_id = htons(orig_io_req->task->rxwr_txrd.var_ctx.rx_id);
+ srr.srr_rel_off = htonl(offset);
+ srr.srr_r_ctl = r_ctl;
+ orig_io_req->srr_offset = offset;
+ orig_io_req->srr_rctl = r_ctl;
+
+ rc = bnx2fc_initiate_els(tgt, ELS_SRR, &srr, sizeof(srr),
+ bnx2fc_srr_compl, cb_arg,
+ r_a_tov);
+srr_err:
+ if (rc) {
+ BNX2FC_IO_DBG(orig_io_req, "SRR failed - release\n");
+ spin_lock_bh(&tgt->tgt_lock);
+ kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ kfree(cb_arg);
+ } else
+ set_bit(BNX2FC_FLAG_SRR_SENT, &orig_io_req->req_flags);
+
+ return rc;
+}
+
+static int bnx2fc_initiate_els(struct bnx2fc_rport *tgt, unsigned int op,
+ void *data, u32 data_len,
+ void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg),
+ struct bnx2fc_els_cb_arg *cb_arg, u32 timer_msec)
+{
+ struct fcoe_port *port = tgt->port;
+ struct bnx2fc_interface *interface = port->priv;
+ struct fc_rport *rport = tgt->rport;
+ struct fc_lport *lport = port->lport;
+ struct bnx2fc_cmd *els_req;
+ struct bnx2fc_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ int rc = 0;
+ int task_idx, index;
+ u32 did, sid;
+ u16 xid;
+
+ rc = fc_remote_port_chkready(rport);
+ if (rc) {
+ printk(KERN_ERR PFX "els 0x%x: rport not ready\n", op);
+ rc = -EINVAL;
+ goto els_err;
+ }
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ printk(KERN_ERR PFX "els 0x%x: link is not ready\n", op);
+ rc = -EINVAL;
+ goto els_err;
+ }
+ if (!(test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) ||
+ (test_bit(BNX2FC_FLAG_EXPL_LOGO, &tgt->flags))) {
+ printk(KERN_ERR PFX "els 0x%x: tgt not ready\n", op);
+ rc = -EINVAL;
+ goto els_err;
+ }
+ els_req = bnx2fc_elstm_alloc(tgt, BNX2FC_ELS);
+ if (!els_req) {
+ rc = -ENOMEM;
+ goto els_err;
+ }
+
+ els_req->sc_cmd = NULL;
+ els_req->port = port;
+ els_req->tgt = tgt;
+ els_req->cb_func = cb_func;
+ cb_arg->io_req = els_req;
+ els_req->cb_arg = cb_arg;
+
+ mp_req = (struct bnx2fc_mp_req *)&(els_req->mp_req);
+ rc = bnx2fc_init_mp_req(els_req);
+ if (rc == FAILED) {
+ printk(KERN_ERR PFX "ELS MP request init failed\n");
+ spin_lock_bh(&tgt->tgt_lock);
+ kref_put(&els_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = -ENOMEM;
+ goto els_err;
+ } else {
+ /* rc SUCCESS */
+ rc = 0;
+ }
+
+ /* Set the data_xfer_len to the size of ELS payload */
+ mp_req->req_len = data_len;
+ els_req->data_xfer_len = mp_req->req_len;
+
+ /* Fill ELS Payload */
+ if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS)) {
+ memcpy(mp_req->req_buf, data, data_len);
+ } else {
+ printk(KERN_ERR PFX "Invalid ELS op 0x%x\n", op);
+ els_req->cb_func = NULL;
+ els_req->cb_arg = NULL;
+ spin_lock_bh(&tgt->tgt_lock);
+ kref_put(&els_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = -EINVAL;
+ }
+
+ if (rc)
+ goto els_err;
+
+ /* Fill FC header */
+ fc_hdr = &(mp_req->req_fc_hdr);
+
+ did = tgt->rport->port_id;
+ sid = tgt->sid;
+
+ if (op == ELS_SRR)
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS4_REQ, did, sid,
+ FC_TYPE_FCP, FC_FC_FIRST_SEQ |
+ FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
+ else
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, did, sid,
+ FC_TYPE_ELS, FC_FC_FIRST_SEQ |
+ FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
+
+ /* Obtain exchange id */
+ xid = els_req->xid;
+ task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *)
+ interface->hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ bnx2fc_init_mp_task(els_req, task);
+
+ spin_lock_bh(&tgt->tgt_lock);
+
+ if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+ printk(KERN_ERR PFX "initiate_els.. session not ready\n");
+ els_req->cb_func = NULL;
+ els_req->cb_arg = NULL;
+ kref_put(&els_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return -EINVAL;
+ }
+
+ if (timer_msec)
+ bnx2fc_cmd_timer_set(els_req, timer_msec);
+ bnx2fc_add_2_sq(tgt, xid);
+
+ els_req->on_active_queue = 1;
+ list_add_tail(&els_req->link, &tgt->els_queue);
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+els_err:
+ return rc;
+}
+
+void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
+ struct fcoe_task_ctx_entry *task, u8 num_rq)
+{
+ struct bnx2fc_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ u64 *hdr;
+ u64 *temp_hdr;
+
+ BNX2FC_ELS_DBG("Entered process_els_compl xid = 0x%x"
+ "cmd_type = %d\n", els_req->xid, els_req->cmd_type);
+
+ if (test_and_set_bit(BNX2FC_FLAG_ELS_DONE,
+ &els_req->req_flags)) {
+ BNX2FC_ELS_DBG("Timer context finished processing this "
+ "els - 0x%x\n", els_req->xid);
+ /* This IO doesn't receive cleanup completion */
+ kref_put(&els_req->refcount, bnx2fc_cmd_release);
+ return;
+ }
+
+ /* Cancel the timeout_work, as we received the response */
+ if (cancel_delayed_work(&els_req->timeout_work))
+ kref_put(&els_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+
+ if (els_req->on_active_queue) {
+ list_del_init(&els_req->link);
+ els_req->on_active_queue = 0;
+ }
+
+ mp_req = &(els_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+
+ hdr = (u64 *)fc_hdr;
+ temp_hdr = (u64 *)
+ &task->rxwr_only.union_ctx.comp_info.mp_rsp.fc_hdr;
+ hdr[0] = cpu_to_be64(temp_hdr[0]);
+ hdr[1] = cpu_to_be64(temp_hdr[1]);
+ hdr[2] = cpu_to_be64(temp_hdr[2]);
+
+ mp_req->resp_len =
+ task->rxwr_only.union_ctx.comp_info.mp_rsp.mp_payload_len;
+
+ /* Parse ELS response */
+ if ((els_req->cb_func) && (els_req->cb_arg)) {
+ els_req->cb_func(els_req->cb_arg);
+ els_req->cb_arg = NULL;
+ }
+
+ kref_put(&els_req->refcount, bnx2fc_cmd_release);
+}
+
+static void bnx2fc_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg)
+{
+ struct fcoe_ctlr *fip = arg;
+ struct fc_exch *exch = fc_seq_exch(seq);
+ struct fc_lport *lport = exch->lp;
+ u8 *mac;
+ u8 op;
+
+ if (IS_ERR(fp))
+ goto done;
+
+ mac = fr_cb(fp)->granted_mac;
+ if (is_zero_ether_addr(mac)) {
+ op = fc_frame_payload_op(fp);
+ if (lport->vport) {
+ if (op == ELS_LS_RJT) {
+ printk(KERN_ERR PFX "bnx2fc_flogi_resp is LS_RJT\n");
+ fc_vport_terminate(lport->vport);
+ fc_frame_free(fp);
+ return;
+ }
+ }
+ fcoe_ctlr_recv_flogi(fip, lport, fp);
+ }
+ if (!is_zero_ether_addr(mac))
+ fip->update_mac(lport, mac);
+done:
+ fc_lport_flogi_resp(seq, fp, lport);
+}
+
+static void bnx2fc_logo_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg)
+{
+ struct fcoe_ctlr *fip = arg;
+ struct fc_exch *exch = fc_seq_exch(seq);
+ struct fc_lport *lport = exch->lp;
+ static u8 zero_mac[ETH_ALEN] = { 0 };
+
+ if (!IS_ERR(fp))
+ fip->update_mac(lport, zero_mac);
+ fc_lport_logo_resp(seq, fp, lport);
+}
+
+struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
+ struct fc_frame *fp, unsigned int op,
+ void (*resp)(struct fc_seq *,
+ struct fc_frame *,
+ void *),
+ void *arg, u32 timeout)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ struct fcoe_ctlr *fip = bnx2fc_to_ctlr(interface);
+ struct fc_frame_header *fh = fc_frame_header_get(fp);
+
+ switch (op) {
+ case ELS_FLOGI:
+ case ELS_FDISC:
+ return fc_elsct_send(lport, did, fp, op, bnx2fc_flogi_resp,
+ fip, timeout);
+ case ELS_LOGO:
+ /* only hook onto fabric logouts, not port logouts */
+ if (ntoh24(fh->fh_d_id) != FC_FID_FLOGI)
+ break;
+ return fc_elsct_send(lport, did, fp, op, bnx2fc_logo_resp,
+ fip, timeout);
+ }
+ return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
+}
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
new file mode 100644
index 00000000000..785d0d71781
--- /dev/null
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -0,0 +1,2816 @@
+/* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * This file contains the code that interacts with libfc, libfcoe,
+ * cnic modules to create FCoE instances, send/receive non-offloaded
+ * FIP/FCoE packets, listen to link events etc.
+ *
+ * Copyright (c) 2008 - 2013 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+static struct list_head adapter_list;
+static struct list_head if_list;
+static u32 adapter_count;
+static DEFINE_MUTEX(bnx2fc_dev_lock);
+DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
+
+#define DRV_MODULE_NAME "bnx2fc"
+#define DRV_MODULE_VERSION BNX2FC_VERSION
+#define DRV_MODULE_RELDATE "Dec 11, 2013"
+
+
+static char version[] =
+ "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
+ " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
+
+
+MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
+MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_MODULE_VERSION);
+
+#define BNX2FC_MAX_QUEUE_DEPTH 256
+#define BNX2FC_MIN_QUEUE_DEPTH 32
+#define FCOE_WORD_TO_BYTE 4
+
+static struct scsi_transport_template *bnx2fc_transport_template;
+static struct scsi_transport_template *bnx2fc_vport_xport_template;
+
+struct workqueue_struct *bnx2fc_wq;
+
+/* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
+ * Here the io threads are per cpu but the l2 thread is just one
+ */
+struct fcoe_percpu_s bnx2fc_global;
+DEFINE_SPINLOCK(bnx2fc_global_lock);
+
+static struct cnic_ulp_ops bnx2fc_cnic_cb;
+static struct libfc_function_template bnx2fc_libfc_fcn_templ;
+static struct scsi_host_template bnx2fc_shost_template;
+static struct fc_function_template bnx2fc_transport_function;
+static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ;
+static struct fc_function_template bnx2fc_vport_xport_function;
+static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
+static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
+static int bnx2fc_destroy(struct net_device *net_device);
+static int bnx2fc_enable(struct net_device *netdev);
+static int bnx2fc_disable(struct net_device *netdev);
+
+/* fcoe_syfs control interface handlers */
+static int bnx2fc_ctlr_alloc(struct net_device *netdev);
+static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev);
+
+static void bnx2fc_recv_frame(struct sk_buff *skb);
+
+static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
+static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
+static int bnx2fc_lport_config(struct fc_lport *lport);
+static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba);
+static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
+static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
+static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
+static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
+static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
+ struct device *parent, int npiv);
+static void bnx2fc_destroy_work(struct work_struct *work);
+
+static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
+static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
+ *phys_dev);
+static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface);
+static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
+
+static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
+static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
+
+static void bnx2fc_port_shutdown(struct fc_lport *lport);
+static void bnx2fc_stop(struct bnx2fc_interface *interface);
+static int __init bnx2fc_mod_init(void);
+static void __exit bnx2fc_mod_exit(void);
+
+unsigned int bnx2fc_debug_level;
+module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
+
+static int bnx2fc_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu);
+/* notification function for CPU hotplug events */
+static struct notifier_block bnx2fc_cpu_notifier = {
+ .notifier_call = bnx2fc_cpu_callback,
+};
+
+static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport)
+{
+ return ((struct bnx2fc_interface *)
+ ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
+}
+
+static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev)
+{
+ struct fcoe_ctlr_device *ctlr_dev =
+ fcoe_fcf_dev_to_ctlr_dev(fcf_dev);
+ struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+ struct bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr);
+
+ fcf_dev->vlan_id = fcoe->vlan_id;
+}
+
+static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
+{
+ struct fcoe_percpu_s *bg;
+ struct fcoe_rcv_info *fr;
+ struct sk_buff_head *list;
+ struct sk_buff *skb, *next;
+ struct sk_buff *head;
+
+ bg = &bnx2fc_global;
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ list = &bg->fcoe_rx_list;
+ head = list->next;
+ for (skb = head; skb != (struct sk_buff *)list;
+ skb = next) {
+ next = skb->next;
+ fr = fcoe_dev_from_skb(skb);
+ if (fr->fr_dev == lp) {
+ __skb_unlink(skb, list);
+ kfree_skb(skb);
+ }
+ }
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+}
+
+int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
+{
+ int rc;
+ spin_lock(&bnx2fc_global_lock);
+ rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
+ spin_unlock(&bnx2fc_global_lock);
+
+ return rc;
+}
+
+static void bnx2fc_abort_io(struct fc_lport *lport)
+{
+ /*
+ * This function is no-op for bnx2fc, but we do
+ * not want to leave it as NULL either, as libfc
+ * can call the default function which is
+ * fc_fcp_abort_io.
+ */
+}
+
+static void bnx2fc_cleanup(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct bnx2fc_rport *tgt;
+ int i;
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ mutex_lock(&hba->hba_mutex);
+ spin_lock_bh(&hba->hba_lock);
+ for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
+ tgt = hba->tgt_ofld_list[i];
+ if (tgt) {
+ /* Cleanup IOs belonging to requested vport */
+ if (tgt->port == port) {
+ spin_unlock_bh(&hba->hba_lock);
+ BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
+ bnx2fc_flush_active_ios(tgt);
+ spin_lock_bh(&hba->hba_lock);
+ }
+ }
+ }
+ spin_unlock_bh(&hba->hba_lock);
+ mutex_unlock(&hba->hba_mutex);
+}
+
+static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
+ struct fc_frame *fp)
+{
+ struct fc_rport_priv *rdata = tgt->rdata;
+ struct fc_frame_header *fh;
+ int rc = 0;
+
+ fh = fc_frame_header_get(fp);
+ BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
+ "r_ctl = 0x%x\n", rdata->ids.port_id,
+ ntohs(fh->fh_ox_id), fh->fh_r_ctl);
+ if ((fh->fh_type == FC_TYPE_ELS) &&
+ (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_ADISC:
+ rc = bnx2fc_send_adisc(tgt, fp);
+ break;
+ case ELS_LOGO:
+ rc = bnx2fc_send_logo(tgt, fp);
+ break;
+ case ELS_RLS:
+ rc = bnx2fc_send_rls(tgt, fp);
+ break;
+ default:
+ break;
+ }
+ } else if ((fh->fh_type == FC_TYPE_BLS) &&
+ (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
+ BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
+ else {
+ BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
+ "rctl 0x%x thru non-offload path\n",
+ fh->fh_type, fh->fh_r_ctl);
+ return -ENODEV;
+ }
+ if (rc)
+ return -ENOMEM;
+ else
+ return 0;
+}
+
+/**
+ * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
+ *
+ * @lport: the associated local port
+ * @fp: the fc_frame to be transmitted
+ */
+static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
+{
+ struct ethhdr *eh;
+ struct fcoe_crc_eof *cp;
+ struct sk_buff *skb;
+ struct fc_frame_header *fh;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ struct bnx2fc_hba *hba;
+ struct fcoe_port *port;
+ struct fcoe_hdr *hp;
+ struct bnx2fc_rport *tgt;
+ struct fc_stats *stats;
+ u8 sof, eof;
+ u32 crc;
+ unsigned int hlen, tlen, elen;
+ int wlen, rc = 0;
+
+ port = (struct fcoe_port *)lport_priv(lport);
+ interface = port->priv;
+ ctlr = bnx2fc_to_ctlr(interface);
+ hba = interface->hba;
+
+ fh = fc_frame_header_get(fp);
+
+ skb = fp_skb(fp);
+ if (!lport->link_up) {
+ BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+ if (!ctlr->sel_fcf) {
+ BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
+ kfree_skb(skb);
+ return -EINVAL;
+ }
+ if (fcoe_ctlr_els_send(ctlr, lport, skb))
+ return 0;
+ }
+
+ sof = fr_sof(fp);
+ eof = fr_eof(fp);
+
+ /*
+ * Snoop the frame header to check if the frame is for
+ * an offloaded session
+ */
+ /*
+ * tgt_ofld_list access is synchronized using
+ * both hba mutex and hba lock. Atleast hba mutex or
+ * hba lock needs to be held for read access.
+ */
+
+ spin_lock_bh(&hba->hba_lock);
+ tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
+ if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
+ /* This frame is for offloaded session */
+ BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
+ "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
+ spin_unlock_bh(&hba->hba_lock);
+ rc = bnx2fc_xmit_l2_frame(tgt, fp);
+ if (rc != -ENODEV) {
+ kfree_skb(skb);
+ return rc;
+ }
+ } else {
+ spin_unlock_bh(&hba->hba_lock);
+ }
+
+ elen = sizeof(struct ethhdr);
+ hlen = sizeof(struct fcoe_hdr);
+ tlen = sizeof(struct fcoe_crc_eof);
+ wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
+
+ skb->ip_summed = CHECKSUM_NONE;
+ crc = fcoe_fc_crc(fp);
+
+ /* copy port crc and eof to the skb buff */
+ if (skb_is_nonlinear(skb)) {
+ skb_frag_t *frag;
+ if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
+ kfree_skb(skb);
+ return -ENOMEM;
+ }
+ frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
+ cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset;
+ } else {
+ cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
+ }
+
+ memset(cp, 0, sizeof(*cp));
+ cp->fcoe_eof = eof;
+ cp->fcoe_crc32 = cpu_to_le32(~crc);
+ if (skb_is_nonlinear(skb)) {
+ kunmap_atomic(cp);
+ cp = NULL;
+ }
+
+ /* adjust skb network/transport offsets to match mac/fcoe/port */
+ skb_push(skb, elen + hlen);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb->mac_len = elen;
+ skb->protocol = htons(ETH_P_FCOE);
+ skb->dev = interface->netdev;
+
+ /* fill up mac and fcoe headers */
+ eh = eth_hdr(skb);
+ eh->h_proto = htons(ETH_P_FCOE);
+ if (ctlr->map_dest)
+ fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
+ else
+ /* insert GW address */
+ memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN);
+
+ if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN))
+ memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN);
+ else
+ memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
+
+ hp = (struct fcoe_hdr *)(eh + 1);
+ memset(hp, 0, sizeof(*hp));
+ if (FC_FCOE_VER)
+ FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
+ hp->fcoe_sof = sof;
+
+ /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
+ if (lport->seq_offload && fr_max_payload(fp)) {
+ skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
+ skb_shinfo(skb)->gso_size = fr_max_payload(fp);
+ } else {
+ skb_shinfo(skb)->gso_type = 0;
+ skb_shinfo(skb)->gso_size = 0;
+ }
+
+ /*update tx stats */
+ stats = per_cpu_ptr(lport->stats, get_cpu());
+ stats->TxFrames++;
+ stats->TxWords += wlen;
+ put_cpu();
+
+ /* send down to lld */
+ fr_dev(fp) = lport;
+ if (port->fcoe_pending_queue.qlen)
+ fcoe_check_wait_queue(lport, skb);
+ else if (fcoe_start_io(skb))
+ fcoe_check_wait_queue(lport, skb);
+
+ return 0;
+}
+
+/**
+ * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
+ *
+ * @skb: the receive socket buffer
+ * @dev: associated net device
+ * @ptype: context
+ * @olddev: last device
+ *
+ * This function receives the packet and builds FC frame and passes it up
+ */
+static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *ptype, struct net_device *olddev)
+{
+ struct fc_lport *lport;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ struct fc_frame_header *fh;
+ struct fcoe_rcv_info *fr;
+ struct fcoe_percpu_s *bg;
+ unsigned short oxid;
+
+ interface = container_of(ptype, struct bnx2fc_interface,
+ fcoe_packet_type);
+ ctlr = bnx2fc_to_ctlr(interface);
+ lport = ctlr->lp;
+
+ if (unlikely(lport == NULL)) {
+ printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
+ goto err;
+ }
+
+ if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
+ printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
+ goto err;
+ }
+
+ /*
+ * Check for minimum frame length, and make sure required FCoE
+ * and FC headers are pulled into the linear data area.
+ */
+ if (unlikely((skb->len < FCOE_MIN_FRAME) ||
+ !pskb_may_pull(skb, FCOE_HEADER_LEN)))
+ goto err;
+
+ skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+
+ oxid = ntohs(fh->fh_ox_id);
+
+ fr = fcoe_dev_from_skb(skb);
+ fr->fr_dev = lport;
+
+ bg = &bnx2fc_global;
+ spin_lock(&bg->fcoe_rx_list.lock);
+
+ __skb_queue_tail(&bg->fcoe_rx_list, skb);
+ if (bg->fcoe_rx_list.qlen == 1)
+ wake_up_process(bg->thread);
+
+ spin_unlock(&bg->fcoe_rx_list.lock);
+
+ return 0;
+err:
+ kfree_skb(skb);
+ return -1;
+}
+
+static int bnx2fc_l2_rcv_thread(void *arg)
+{
+ struct fcoe_percpu_s *bg = arg;
+ struct sk_buff *skb;
+
+ set_user_nice(current, MIN_NICE);
+ set_current_state(TASK_INTERRUPTIBLE);
+ while (!kthread_should_stop()) {
+ schedule();
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+ bnx2fc_recv_frame(skb);
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ }
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+ }
+ __set_current_state(TASK_RUNNING);
+ return 0;
+}
+
+
+static void bnx2fc_recv_frame(struct sk_buff *skb)
+{
+ u32 fr_len;
+ struct fc_lport *lport;
+ struct fcoe_rcv_info *fr;
+ struct fc_stats *stats;
+ struct fc_frame_header *fh;
+ struct fcoe_crc_eof crc_eof;
+ struct fc_frame *fp;
+ struct fc_lport *vn_port;
+ struct fcoe_port *port;
+ u8 *mac = NULL;
+ u8 *dest_mac = NULL;
+ struct fcoe_hdr *hp;
+
+ fr = fcoe_dev_from_skb(skb);
+ lport = fr->fr_dev;
+ if (unlikely(lport == NULL)) {
+ printk(KERN_ERR PFX "Invalid lport struct\n");
+ kfree_skb(skb);
+ return;
+ }
+
+ if (skb_is_nonlinear(skb))
+ skb_linearize(skb);
+ mac = eth_hdr(skb)->h_source;
+ dest_mac = eth_hdr(skb)->h_dest;
+
+ /* Pull the header */
+ hp = (struct fcoe_hdr *) skb_network_header(skb);
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+ skb_pull(skb, sizeof(struct fcoe_hdr));
+ fr_len = skb->len - sizeof(struct fcoe_crc_eof);
+
+ fp = (struct fc_frame *)skb;
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = hp->fcoe_sof;
+ if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
+ kfree_skb(skb);
+ return;
+ }
+ fr_eof(fp) = crc_eof.fcoe_eof;
+ fr_crc(fp) = crc_eof.fcoe_crc32;
+ if (pskb_trim(skb, fr_len)) {
+ kfree_skb(skb);
+ return;
+ }
+
+ fh = fc_frame_header_get(fp);
+
+ vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
+ if (vn_port) {
+ port = lport_priv(vn_port);
+ if (!ether_addr_equal(port->data_src_addr, dest_mac)) {
+ BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
+ kfree_skb(skb);
+ return;
+ }
+ }
+ if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
+ fh->fh_type == FC_TYPE_FCP) {
+ /* Drop FCP data. We dont this in L2 path */
+ kfree_skb(skb);
+ return;
+ }
+ if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
+ fh->fh_type == FC_TYPE_ELS) {
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_LOGO:
+ if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
+ /* drop non-FIP LOGO */
+ kfree_skb(skb);
+ return;
+ }
+ break;
+ }
+ }
+
+ if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
+ /* Drop incoming ABTS */
+ kfree_skb(skb);
+ return;
+ }
+
+ stats = per_cpu_ptr(lport->stats, smp_processor_id());
+ stats->RxFrames++;
+ stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
+
+ if (le32_to_cpu(fr_crc(fp)) !=
+ ~crc32(~0, skb->data, fr_len)) {
+ if (stats->InvalidCRCCount < 5)
+ printk(KERN_WARNING PFX "dropping frame with "
+ "CRC error\n");
+ stats->InvalidCRCCount++;
+ kfree_skb(skb);
+ return;
+ }
+ fc_exch_recv(lport, fp);
+}
+
+/**
+ * bnx2fc_percpu_io_thread - thread per cpu for ios
+ *
+ * @arg: ptr to bnx2fc_percpu_info structure
+ */
+int bnx2fc_percpu_io_thread(void *arg)
+{
+ struct bnx2fc_percpu_s *p = arg;
+ struct bnx2fc_work *work, *tmp;
+ LIST_HEAD(work_list);
+
+ set_user_nice(current, MIN_NICE);
+ set_current_state(TASK_INTERRUPTIBLE);
+ while (!kthread_should_stop()) {
+ schedule();
+ spin_lock_bh(&p->fp_work_lock);
+ while (!list_empty(&p->work_list)) {
+ list_splice_init(&p->work_list, &work_list);
+ spin_unlock_bh(&p->fp_work_lock);
+
+ list_for_each_entry_safe(work, tmp, &work_list, list) {
+ list_del_init(&work->list);
+ bnx2fc_process_cq_compl(work->tgt, work->wqe);
+ kfree(work);
+ }
+
+ spin_lock_bh(&p->fp_work_lock);
+ }
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_bh(&p->fp_work_lock);
+ }
+ __set_current_state(TASK_RUNNING);
+
+ return 0;
+}
+
+static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
+{
+ struct fc_host_statistics *bnx2fc_stats;
+ struct fc_lport *lport = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct fcoe_statistics_params *fw_stats;
+ int rc = 0;
+
+ fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
+ if (!fw_stats)
+ return NULL;
+
+ bnx2fc_stats = fc_get_host_stats(shost);
+
+ init_completion(&hba->stat_req_done);
+ if (bnx2fc_send_stat_req(hba))
+ return bnx2fc_stats;
+ rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
+ if (!rc) {
+ BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
+ return bnx2fc_stats;
+ }
+ BNX2FC_STATS(hba, rx_stat2, fc_crc_cnt);
+ bnx2fc_stats->invalid_crc_count += hba->bfw_stats.fc_crc_cnt;
+ BNX2FC_STATS(hba, tx_stat, fcoe_tx_pkt_cnt);
+ bnx2fc_stats->tx_frames += hba->bfw_stats.fcoe_tx_pkt_cnt;
+ BNX2FC_STATS(hba, tx_stat, fcoe_tx_byte_cnt);
+ bnx2fc_stats->tx_words += ((hba->bfw_stats.fcoe_tx_byte_cnt) / 4);
+ BNX2FC_STATS(hba, rx_stat0, fcoe_rx_pkt_cnt);
+ bnx2fc_stats->rx_frames += hba->bfw_stats.fcoe_rx_pkt_cnt;
+ BNX2FC_STATS(hba, rx_stat0, fcoe_rx_byte_cnt);
+ bnx2fc_stats->rx_words += ((hba->bfw_stats.fcoe_rx_byte_cnt) / 4);
+
+ bnx2fc_stats->dumped_frames = 0;
+ bnx2fc_stats->lip_count = 0;
+ bnx2fc_stats->nos_count = 0;
+ bnx2fc_stats->loss_of_sync_count = 0;
+ bnx2fc_stats->loss_of_signal_count = 0;
+ bnx2fc_stats->prim_seq_protocol_err_count = 0;
+
+ memcpy(&hba->prev_stats, hba->stats_buffer,
+ sizeof(struct fcoe_statistics_params));
+ return bnx2fc_stats;
+}
+
+static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct Scsi_Host *shost = lport->host;
+ int rc = 0;
+
+ shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
+ shost->max_lun = BNX2FC_MAX_LUN;
+ shost->max_id = BNX2FC_MAX_FCP_TGT;
+ shost->max_channel = 0;
+ if (lport->vport)
+ shost->transportt = bnx2fc_vport_xport_template;
+ else
+ shost->transportt = bnx2fc_transport_template;
+
+ /* Add the new host to SCSI-ml */
+ rc = scsi_add_host(lport->host, dev);
+ if (rc) {
+ printk(KERN_ERR PFX "Error on scsi_add_host\n");
+ return rc;
+ }
+ if (!lport->vport)
+ fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
+ snprintf(fc_host_symbolic_name(lport->host), 256,
+ "%s (Broadcom %s) v%s over %s",
+ BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION,
+ interface->netdev->name);
+
+ return 0;
+}
+
+static int bnx2fc_link_ok(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct net_device *dev = hba->phys_dev;
+ int rc = 0;
+
+ if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
+ clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+ else {
+ set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+ rc = -1;
+ }
+ return rc;
+}
+
+/**
+ * bnx2fc_get_link_state - get network link state
+ *
+ * @hba: adapter instance pointer
+ *
+ * updates adapter structure flag based on netdev state
+ */
+void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
+{
+ if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
+ set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+ else
+ clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+}
+
+static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
+{
+ struct bnx2fc_hba *hba;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ struct fcoe_port *port;
+ u64 wwnn, wwpn;
+
+ port = lport_priv(lport);
+ interface = port->priv;
+ ctlr = bnx2fc_to_ctlr(interface);
+ hba = interface->hba;
+
+ /* require support for get_pauseparam ethtool op. */
+ if (!hba->phys_dev->ethtool_ops ||
+ !hba->phys_dev->ethtool_ops->get_pauseparam)
+ return -EOPNOTSUPP;
+
+ if (fc_set_mfs(lport, BNX2FC_MFS))
+ return -EINVAL;
+
+ skb_queue_head_init(&port->fcoe_pending_queue);
+ port->fcoe_pending_queue_active = 0;
+ setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
+
+ fcoe_link_speed_update(lport);
+
+ if (!lport->vport) {
+ if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
+ wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
+ 1, 0);
+ BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
+ fc_set_wwnn(lport, wwnn);
+
+ if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
+ wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
+ 2, 0);
+
+ BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
+ fc_set_wwpn(lport, wwpn);
+ }
+
+ return 0;
+}
+
+static void bnx2fc_destroy_timer(unsigned long data)
+{
+ struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
+
+ printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
+ "Destroy compl not received!!\n");
+ set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
+ wake_up_interruptible(&hba->destroy_wait);
+}
+
+/**
+ * bnx2fc_indicate_netevent - Generic netdev event handler
+ *
+ * @context: adapter structure pointer
+ * @event: event type
+ * @vlan_id: vlan id - associated vlan id with this event
+ *
+ * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
+ * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
+ */
+static void bnx2fc_indicate_netevent(void *context, unsigned long event,
+ u16 vlan_id)
+{
+ struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
+ struct fcoe_ctlr_device *cdev;
+ struct fc_lport *lport;
+ struct fc_lport *vport;
+ struct bnx2fc_interface *interface, *tmp;
+ struct fcoe_ctlr *ctlr;
+ int wait_for_upload = 0;
+ u32 link_possible = 1;
+
+ if (vlan_id != 0 && event != NETDEV_UNREGISTER)
+ return;
+
+ switch (event) {
+ case NETDEV_UP:
+ if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
+ printk(KERN_ERR "indicate_netevent: "\
+ "hba is not UP!!\n");
+ break;
+
+ case NETDEV_DOWN:
+ clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
+ clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+ link_possible = 0;
+ break;
+
+ case NETDEV_GOING_DOWN:
+ set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
+ link_possible = 0;
+ break;
+
+ case NETDEV_CHANGE:
+ break;
+
+ case NETDEV_UNREGISTER:
+ if (!vlan_id)
+ return;
+ mutex_lock(&bnx2fc_dev_lock);
+ list_for_each_entry_safe(interface, tmp, &if_list, list) {
+ if (interface->hba == hba &&
+ interface->vlan_id == (vlan_id & VLAN_VID_MASK))
+ __bnx2fc_destroy(interface);
+ }
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ /* Ensure ALL destroy work has been completed before return */
+ flush_workqueue(bnx2fc_wq);
+ return;
+
+ default:
+ printk(KERN_ERR PFX "Unknown netevent %ld", event);
+ return;
+ }
+
+ mutex_lock(&bnx2fc_dev_lock);
+ list_for_each_entry(interface, &if_list, list) {
+
+ if (interface->hba != hba)
+ continue;
+
+ ctlr = bnx2fc_to_ctlr(interface);
+ lport = ctlr->lp;
+ BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
+ interface->netdev->name, event);
+
+ fcoe_link_speed_update(lport);
+
+ cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
+
+ if (link_possible && !bnx2fc_link_ok(lport)) {
+ switch (cdev->enabled) {
+ case FCOE_CTLR_DISABLED:
+ pr_info("Link up while interface is disabled.\n");
+ break;
+ case FCOE_CTLR_ENABLED:
+ case FCOE_CTLR_UNUSED:
+ /* Reset max recv frame size to default */
+ fc_set_mfs(lport, BNX2FC_MFS);
+ /*
+ * ctlr link up will only be handled during
+ * enable to avoid sending discovery
+ * solicitation on a stale vlan
+ */
+ if (interface->enabled)
+ fcoe_ctlr_link_up(ctlr);
+ };
+ } else if (fcoe_ctlr_link_down(ctlr)) {
+ switch (cdev->enabled) {
+ case FCOE_CTLR_DISABLED:
+ pr_info("Link down while interface is disabled.\n");
+ break;
+ case FCOE_CTLR_ENABLED:
+ case FCOE_CTLR_UNUSED:
+ mutex_lock(&lport->lp_mutex);
+ list_for_each_entry(vport, &lport->vports, list)
+ fc_host_port_type(vport->host) =
+ FC_PORTTYPE_UNKNOWN;
+ mutex_unlock(&lport->lp_mutex);
+ fc_host_port_type(lport->host) =
+ FC_PORTTYPE_UNKNOWN;
+ per_cpu_ptr(lport->stats,
+ get_cpu())->LinkFailureCount++;
+ put_cpu();
+ fcoe_clean_pending_queue(lport);
+ wait_for_upload = 1;
+ };
+ }
+ }
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ if (wait_for_upload) {
+ clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
+ init_waitqueue_head(&hba->shutdown_wait);
+ BNX2FC_MISC_DBG("indicate_netevent "
+ "num_ofld_sess = %d\n",
+ hba->num_ofld_sess);
+ hba->wait_for_link_down = 1;
+ wait_event_interruptible(hba->shutdown_wait,
+ (hba->num_ofld_sess == 0));
+ BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
+ hba->num_ofld_sess);
+ hba->wait_for_link_down = 0;
+
+ if (signal_pending(current))
+ flush_signals(current);
+ }
+}
+
+static int bnx2fc_libfc_config(struct fc_lport *lport)
+{
+
+ /* Set the function pointers set by bnx2fc driver */
+ memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
+ sizeof(struct libfc_function_template));
+ fc_elsct_init(lport);
+ fc_exch_init(lport);
+ fc_rport_init(lport);
+ fc_disc_init(lport);
+ fc_disc_config(lport, lport);
+ return 0;
+}
+
+static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba)
+{
+ int fcoe_min_xid, fcoe_max_xid;
+
+ fcoe_min_xid = hba->max_xid + 1;
+ if (nr_cpu_ids <= 2)
+ fcoe_max_xid = hba->max_xid + FCOE_XIDS_PER_CPU_OFFSET;
+ else
+ fcoe_max_xid = hba->max_xid + FCOE_MAX_XID_OFFSET;
+ if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, fcoe_min_xid,
+ fcoe_max_xid, NULL)) {
+ printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static int bnx2fc_lport_config(struct fc_lport *lport)
+{
+ lport->link_up = 0;
+ lport->qfull = 0;
+ lport->max_retry_count = BNX2FC_MAX_RETRY_CNT;
+ lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT;
+ lport->e_d_tov = 2 * 1000;
+ lport->r_a_tov = 10 * 1000;
+
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+ FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+ lport->does_npiv = 1;
+
+ memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
+ lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
+
+ /* alloc stats structure */
+ if (fc_lport_init_stats(lport))
+ return -ENOMEM;
+
+ /* Finish fc_lport configuration */
+ fc_lport_config(lport);
+
+ return 0;
+}
+
+/**
+ * bnx2fc_fip_recv - handle a received FIP frame.
+ *
+ * @skb: the received skb
+ * @dev: associated &net_device
+ * @ptype: the &packet_type structure which was used to register this handler.
+ * @orig_dev: original receive &net_device, in case @ dev is a bond.
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *ptype,
+ struct net_device *orig_dev)
+{
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ interface = container_of(ptype, struct bnx2fc_interface,
+ fip_packet_type);
+ ctlr = bnx2fc_to_ctlr(interface);
+ fcoe_ctlr_recv(ctlr, skb);
+ return 0;
+}
+
+/**
+ * bnx2fc_update_src_mac - Update Ethernet MAC filters.
+ *
+ * @fip: FCoE controller.
+ * @old: Unicast MAC address to delete if the MAC is non-zero.
+ * @new: Unicast MAC address to add.
+ *
+ * Remove any previously-set unicast MAC filter.
+ * Add secondary FCoE MAC address filter for our OUI.
+ */
+static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
+{
+ struct fcoe_port *port = lport_priv(lport);
+
+ memcpy(port->data_src_addr, addr, ETH_ALEN);
+}
+
+/**
+ * bnx2fc_get_src_mac - return the ethernet source address for an lport
+ *
+ * @lport: libfc port
+ */
+static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
+{
+ struct fcoe_port *port;
+
+ port = (struct fcoe_port *)lport_priv(lport);
+ return port->data_src_addr;
+}
+
+/**
+ * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
+ *
+ * @fip: FCoE controller.
+ * @skb: FIP Packet.
+ */
+static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
+{
+ skb->dev = bnx2fc_from_ctlr(fip)->netdev;
+ dev_queue_xmit(skb);
+}
+
+static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(n_port);
+ struct bnx2fc_interface *interface = port->priv;
+ struct net_device *netdev = interface->netdev;
+ struct fc_lport *vn_port;
+ int rc;
+ char buf[32];
+
+ rc = fcoe_validate_vport_create(vport);
+ if (rc) {
+ fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
+ printk(KERN_ERR PFX "Failed to create vport, "
+ "WWPN (0x%s) already exists\n",
+ buf);
+ return rc;
+ }
+
+ if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
+ printk(KERN_ERR PFX "vn ports cannot be created on"
+ "this interface\n");
+ return -EIO;
+ }
+ rtnl_lock();
+ mutex_lock(&bnx2fc_dev_lock);
+ vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+
+ if (IS_ERR(vn_port)) {
+ printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
+ netdev->name);
+ return -EIO;
+ }
+
+ if (disabled) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ } else {
+ vn_port->boot_time = jiffies;
+ fc_lport_init(vn_port);
+ fc_fabric_login(vn_port);
+ fc_vport_setlink(vn_port);
+ }
+ return 0;
+}
+
+static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
+{
+ struct bnx2fc_lport *blport, *tmp;
+
+ spin_lock_bh(&hba->hba_lock);
+ list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
+ if (blport->lport == lport) {
+ list_del(&blport->list);
+ kfree(blport);
+ }
+ }
+ spin_unlock_bh(&hba->hba_lock);
+}
+
+static int bnx2fc_vport_destroy(struct fc_vport *vport)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fc_lport *vn_port = vport->dd_data;
+ struct fcoe_port *port = lport_priv(vn_port);
+ struct bnx2fc_interface *interface = port->priv;
+ struct fc_lport *v_port;
+ bool found = false;
+
+ mutex_lock(&n_port->lp_mutex);
+ list_for_each_entry(v_port, &n_port->vports, list)
+ if (v_port->vport == vport) {
+ found = true;
+ break;
+ }
+
+ if (!found) {
+ mutex_unlock(&n_port->lp_mutex);
+ return -ENOENT;
+ }
+ list_del(&vn_port->list);
+ mutex_unlock(&n_port->lp_mutex);
+ bnx2fc_free_vport(interface->hba, port->lport);
+ bnx2fc_port_shutdown(port->lport);
+ bnx2fc_interface_put(interface);
+ queue_work(bnx2fc_wq, &port->destroy_work);
+ return 0;
+}
+
+static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
+{
+ struct fc_lport *lport = vport->dd_data;
+
+ if (disable) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ fc_fabric_logoff(lport);
+ } else {
+ lport->boot_time = jiffies;
+ fc_fabric_login(lport);
+ fc_vport_setlink(lport);
+ }
+ return 0;
+}
+
+
+static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
+{
+ struct net_device *netdev = interface->netdev;
+ struct net_device *physdev = interface->hba->phys_dev;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct netdev_hw_addr *ha;
+ int sel_san_mac = 0;
+
+ /* setup Source MAC Address */
+ rcu_read_lock();
+ for_each_dev_addr(physdev, ha) {
+ BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
+ ha->type);
+ printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
+ ha->addr[1], ha->addr[2], ha->addr[3],
+ ha->addr[4], ha->addr[5]);
+
+ if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
+ (is_valid_ether_addr(ha->addr))) {
+ memcpy(ctlr->ctl_src_addr, ha->addr,
+ ETH_ALEN);
+ sel_san_mac = 1;
+ BNX2FC_MISC_DBG("Found SAN MAC\n");
+ }
+ }
+ rcu_read_unlock();
+
+ if (!sel_san_mac)
+ return -ENODEV;
+
+ interface->fip_packet_type.func = bnx2fc_fip_recv;
+ interface->fip_packet_type.type = htons(ETH_P_FIP);
+ interface->fip_packet_type.dev = netdev;
+ dev_add_pack(&interface->fip_packet_type);
+
+ interface->fcoe_packet_type.func = bnx2fc_rcv;
+ interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
+ interface->fcoe_packet_type.dev = netdev;
+ dev_add_pack(&interface->fcoe_packet_type);
+
+ return 0;
+}
+
+static int bnx2fc_attach_transport(void)
+{
+ bnx2fc_transport_template =
+ fc_attach_transport(&bnx2fc_transport_function);
+
+ if (bnx2fc_transport_template == NULL) {
+ printk(KERN_ERR PFX "Failed to attach FC transport\n");
+ return -ENODEV;
+ }
+
+ bnx2fc_vport_xport_template =
+ fc_attach_transport(&bnx2fc_vport_xport_function);
+ if (bnx2fc_vport_xport_template == NULL) {
+ printk(KERN_ERR PFX
+ "Failed to attach FC transport for vport\n");
+ fc_release_transport(bnx2fc_transport_template);
+ bnx2fc_transport_template = NULL;
+ return -ENODEV;
+ }
+ return 0;
+}
+static void bnx2fc_release_transport(void)
+{
+ fc_release_transport(bnx2fc_transport_template);
+ fc_release_transport(bnx2fc_vport_xport_template);
+ bnx2fc_transport_template = NULL;
+ bnx2fc_vport_xport_template = NULL;
+}
+
+static void bnx2fc_interface_release(struct kref *kref)
+{
+ struct fcoe_ctlr_device *ctlr_dev;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ struct net_device *netdev;
+
+ interface = container_of(kref, struct bnx2fc_interface, kref);
+ BNX2FC_MISC_DBG("Interface is being released\n");
+
+ ctlr = bnx2fc_to_ctlr(interface);
+ ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr);
+ netdev = interface->netdev;
+
+ /* tear-down FIP controller */
+ if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
+ fcoe_ctlr_destroy(ctlr);
+
+ fcoe_ctlr_device_delete(ctlr_dev);
+
+ dev_put(netdev);
+ module_put(THIS_MODULE);
+}
+
+static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
+{
+ kref_get(&interface->kref);
+}
+
+static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
+{
+ kref_put(&interface->kref, bnx2fc_interface_release);
+}
+static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
+{
+ /* Free the command manager */
+ if (hba->cmd_mgr) {
+ bnx2fc_cmd_mgr_free(hba->cmd_mgr);
+ hba->cmd_mgr = NULL;
+ }
+ kfree(hba->tgt_ofld_list);
+ bnx2fc_unbind_pcidev(hba);
+ kfree(hba);
+}
+
+/**
+ * bnx2fc_hba_create - create a new bnx2fc hba
+ *
+ * @cnic: pointer to cnic device
+ *
+ * Creates a new FCoE hba on the given device.
+ *
+ */
+static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
+{
+ struct bnx2fc_hba *hba;
+ struct fcoe_capabilities *fcoe_cap;
+ int rc;
+
+ hba = kzalloc(sizeof(*hba), GFP_KERNEL);
+ if (!hba) {
+ printk(KERN_ERR PFX "Unable to allocate hba structure\n");
+ return NULL;
+ }
+ spin_lock_init(&hba->hba_lock);
+ mutex_init(&hba->hba_mutex);
+
+ hba->cnic = cnic;
+
+ hba->max_tasks = cnic->max_fcoe_exchanges;
+ hba->elstm_xids = (hba->max_tasks / 2);
+ hba->max_outstanding_cmds = hba->elstm_xids;
+ hba->max_xid = (hba->max_tasks - 1);
+
+ rc = bnx2fc_bind_pcidev(hba);
+ if (rc) {
+ printk(KERN_ERR PFX "create_adapter: bind error\n");
+ goto bind_err;
+ }
+ hba->phys_dev = cnic->netdev;
+ hba->next_conn_id = 0;
+
+ hba->tgt_ofld_list =
+ kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS,
+ GFP_KERNEL);
+ if (!hba->tgt_ofld_list) {
+ printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
+ goto tgtofld_err;
+ }
+
+ hba->num_ofld_sess = 0;
+
+ hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba);
+ if (!hba->cmd_mgr) {
+ printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
+ goto cmgr_err;
+ }
+ fcoe_cap = &hba->fcoe_cap;
+
+ fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES <<
+ FCOE_IOS_PER_CONNECTION_SHIFT;
+ fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS <<
+ FCOE_LOGINS_PER_PORT_SHIFT;
+ fcoe_cap->capability2 = hba->max_outstanding_cmds <<
+ FCOE_NUMBER_OF_EXCHANGES_SHIFT;
+ fcoe_cap->capability2 |= BNX2FC_MAX_NPIV <<
+ FCOE_NPIV_WWN_PER_PORT_SHIFT;
+ fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS <<
+ FCOE_TARGETS_SUPPORTED_SHIFT;
+ fcoe_cap->capability3 |= hba->max_outstanding_cmds <<
+ FCOE_OUTSTANDING_COMMANDS_SHIFT;
+ fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL;
+
+ init_waitqueue_head(&hba->shutdown_wait);
+ init_waitqueue_head(&hba->destroy_wait);
+ INIT_LIST_HEAD(&hba->vports);
+
+ return hba;
+
+cmgr_err:
+ kfree(hba->tgt_ofld_list);
+tgtofld_err:
+ bnx2fc_unbind_pcidev(hba);
+bind_err:
+ kfree(hba);
+ return NULL;
+}
+
+struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba,
+ struct net_device *netdev,
+ enum fip_state fip_mode)
+{
+ struct fcoe_ctlr_device *ctlr_dev;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ int size;
+ int rc = 0;
+
+ size = (sizeof(*interface) + sizeof(struct fcoe_ctlr));
+ ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ,
+ size);
+ if (!ctlr_dev) {
+ printk(KERN_ERR PFX "Unable to allocate interface structure\n");
+ return NULL;
+ }
+ ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+ ctlr->cdev = ctlr_dev;
+ interface = fcoe_ctlr_priv(ctlr);
+ dev_hold(netdev);
+ kref_init(&interface->kref);
+ interface->hba = hba;
+ interface->netdev = netdev;
+
+ /* Initialize FIP */
+ fcoe_ctlr_init(ctlr, fip_mode);
+ ctlr->send = bnx2fc_fip_send;
+ ctlr->update_mac = bnx2fc_update_src_mac;
+ ctlr->get_src_addr = bnx2fc_get_src_mac;
+ set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
+
+ rc = bnx2fc_interface_setup(interface);
+ if (!rc)
+ return interface;
+
+ fcoe_ctlr_destroy(ctlr);
+ dev_put(netdev);
+ fcoe_ctlr_device_delete(ctlr_dev);
+ return NULL;
+}
+
+/**
+ * bnx2fc_if_create - Create FCoE instance on a given interface
+ *
+ * @interface: FCoE interface to create a local port on
+ * @parent: Device pointer to be the parent in sysfs for the SCSI host
+ * @npiv: Indicates if the port is vport or not
+ *
+ * Creates a fc_lport instance and a Scsi_Host instance and configure them.
+ *
+ * Returns: Allocated fc_lport or an error pointer
+ */
+static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
+ struct device *parent, int npiv)
+{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport, *n_port;
+ struct fcoe_port *port;
+ struct Scsi_Host *shost;
+ struct fc_vport *vport = dev_to_vport(parent);
+ struct bnx2fc_lport *blport;
+ struct bnx2fc_hba *hba = interface->hba;
+ int rc = 0;
+
+ blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
+ if (!blport) {
+ BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n");
+ return NULL;
+ }
+
+ /* Allocate Scsi_Host structure */
+ bnx2fc_shost_template.can_queue = hba->max_outstanding_cmds;
+ if (!npiv)
+ lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
+ else
+ lport = libfc_vport_create(vport, sizeof(*port));
+
+ if (!lport) {
+ printk(KERN_ERR PFX "could not allocate scsi host structure\n");
+ goto free_blport;
+ }
+ shost = lport->host;
+ port = lport_priv(lport);
+ port->lport = lport;
+ port->priv = interface;
+ port->get_netdev = bnx2fc_netdev;
+ INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
+
+ /* Configure fcoe_port */
+ rc = bnx2fc_lport_config(lport);
+ if (rc)
+ goto lp_config_err;
+
+ if (npiv) {
+ printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
+ vport->node_name, vport->port_name);
+ fc_set_wwnn(lport, vport->node_name);
+ fc_set_wwpn(lport, vport->port_name);
+ }
+ /* Configure netdev and networking properties of the lport */
+ rc = bnx2fc_net_config(lport, interface->netdev);
+ if (rc) {
+ printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
+ goto lp_config_err;
+ }
+
+ rc = bnx2fc_shost_config(lport, parent);
+ if (rc) {
+ printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
+ interface->netdev->name);
+ goto lp_config_err;
+ }
+
+ /* Initialize the libfc library */
+ rc = bnx2fc_libfc_config(lport);
+ if (rc) {
+ printk(KERN_ERR PFX "Couldnt configure libfc\n");
+ goto shost_err;
+ }
+ fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+
+ /* Allocate exchange manager */
+ if (!npiv)
+ rc = bnx2fc_em_config(lport, hba);
+ else {
+ shost = vport_to_shost(vport);
+ n_port = shost_priv(shost);
+ rc = fc_exch_mgr_list_clone(n_port, lport);
+ }
+
+ if (rc) {
+ printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
+ goto shost_err;
+ }
+
+ bnx2fc_interface_get(interface);
+
+ spin_lock_bh(&hba->hba_lock);
+ blport->lport = lport;
+ list_add_tail(&blport->list, &hba->vports);
+ spin_unlock_bh(&hba->hba_lock);
+
+ return lport;
+
+shost_err:
+ scsi_remove_host(shost);
+lp_config_err:
+ scsi_host_put(lport->host);
+free_blport:
+ kfree(blport);
+ return NULL;
+}
+
+static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface)
+{
+ /* Dont listen for Ethernet packets anymore */
+ __dev_remove_pack(&interface->fcoe_packet_type);
+ __dev_remove_pack(&interface->fip_packet_type);
+ synchronize_net();
+}
+
+static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
+{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport = ctlr->lp;
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = interface->hba;
+
+ /* Stop the transmit retry timer */
+ del_timer_sync(&port->timer);
+
+ /* Free existing transmit skbs */
+ fcoe_clean_pending_queue(lport);
+
+ bnx2fc_net_cleanup(interface);
+
+ bnx2fc_free_vport(hba, lport);
+}
+
+static void bnx2fc_if_destroy(struct fc_lport *lport)
+{
+
+ /* Free queued packets for the receive thread */
+ bnx2fc_clean_rx_queue(lport);
+
+ /* Detach from scsi-ml */
+ fc_remove_host(lport->host);
+ scsi_remove_host(lport->host);
+
+ /*
+ * Note that only the physical lport will have the exchange manager.
+ * for vports, this function is NOP
+ */
+ fc_exch_mgr_free(lport);
+
+ /* Free memory used by statistical counters */
+ fc_lport_free_stats(lport);
+
+ /* Release Scsi_Host */
+ scsi_host_put(lport->host);
+}
+
+static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
+{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport = ctlr->lp;
+ struct fcoe_port *port = lport_priv(lport);
+
+ bnx2fc_interface_cleanup(interface);
+ bnx2fc_stop(interface);
+ list_del(&interface->list);
+ bnx2fc_interface_put(interface);
+ queue_work(bnx2fc_wq, &port->destroy_work);
+}
+
+/**
+ * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
+ *
+ * @buffer: The name of the Ethernet interface to be destroyed
+ * @kp: The associated kernel parameter
+ *
+ * Called from sysfs.
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_destroy(struct net_device *netdev)
+{
+ struct bnx2fc_interface *interface = NULL;
+ struct workqueue_struct *timer_work_queue;
+ struct fcoe_ctlr *ctlr;
+ int rc = 0;
+
+ rtnl_lock();
+ mutex_lock(&bnx2fc_dev_lock);
+
+ interface = bnx2fc_interface_lookup(netdev);
+ ctlr = bnx2fc_to_ctlr(interface);
+ if (!interface || !ctlr->lp) {
+ rc = -ENODEV;
+ printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
+ goto netdev_err;
+ }
+
+ timer_work_queue = interface->timer_work_queue;
+ __bnx2fc_destroy(interface);
+ destroy_workqueue(timer_work_queue);
+
+netdev_err:
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+static void bnx2fc_destroy_work(struct work_struct *work)
+{
+ struct fcoe_port *port;
+ struct fc_lport *lport;
+
+ port = container_of(work, struct fcoe_port, destroy_work);
+ lport = port->lport;
+
+ BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
+
+ bnx2fc_if_destroy(lport);
+}
+
+static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
+{
+ bnx2fc_free_fw_resc(hba);
+ bnx2fc_free_task_ctx(hba);
+}
+
+/**
+ * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
+ * pci structure
+ *
+ * @hba: Adapter instance
+ */
+static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
+{
+ if (bnx2fc_setup_task_ctx(hba))
+ goto mem_err;
+
+ if (bnx2fc_setup_fw_resc(hba))
+ goto mem_err;
+
+ return 0;
+mem_err:
+ bnx2fc_unbind_adapter_devices(hba);
+ return -ENOMEM;
+}
+
+static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
+{
+ struct cnic_dev *cnic;
+ struct pci_dev *pdev;
+
+ if (!hba->cnic) {
+ printk(KERN_ERR PFX "cnic is NULL\n");
+ return -ENODEV;
+ }
+ cnic = hba->cnic;
+ pdev = hba->pcidev = cnic->pcidev;
+ if (!hba->pcidev)
+ return -ENODEV;
+
+ switch (pdev->device) {
+ case PCI_DEVICE_ID_NX2_57710:
+ strncpy(hba->chip_num, "BCM57710", BCM_CHIP_LEN);
+ break;
+ case PCI_DEVICE_ID_NX2_57711:
+ strncpy(hba->chip_num, "BCM57711", BCM_CHIP_LEN);
+ break;
+ case PCI_DEVICE_ID_NX2_57712:
+ case PCI_DEVICE_ID_NX2_57712_MF:
+ case PCI_DEVICE_ID_NX2_57712_VF:
+ strncpy(hba->chip_num, "BCM57712", BCM_CHIP_LEN);
+ break;
+ case PCI_DEVICE_ID_NX2_57800:
+ case PCI_DEVICE_ID_NX2_57800_MF:
+ case PCI_DEVICE_ID_NX2_57800_VF:
+ strncpy(hba->chip_num, "BCM57800", BCM_CHIP_LEN);
+ break;
+ case PCI_DEVICE_ID_NX2_57810:
+ case PCI_DEVICE_ID_NX2_57810_MF:
+ case PCI_DEVICE_ID_NX2_57810_VF:
+ strncpy(hba->chip_num, "BCM57810", BCM_CHIP_LEN);
+ break;
+ case PCI_DEVICE_ID_NX2_57840:
+ case PCI_DEVICE_ID_NX2_57840_MF:
+ case PCI_DEVICE_ID_NX2_57840_VF:
+ case PCI_DEVICE_ID_NX2_57840_2_20:
+ case PCI_DEVICE_ID_NX2_57840_4_10:
+ strncpy(hba->chip_num, "BCM57840", BCM_CHIP_LEN);
+ break;
+ default:
+ pr_err(PFX "Unknown device id 0x%x\n", pdev->device);
+ break;
+ }
+ pci_dev_get(hba->pcidev);
+ return 0;
+}
+
+static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
+{
+ if (hba->pcidev) {
+ hba->chip_num[0] = '\0';
+ pci_dev_put(hba->pcidev);
+ }
+ hba->pcidev = NULL;
+}
+
+/**
+ * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
+ *
+ * @handle: transport handle pointing to adapter struture
+ */
+static int bnx2fc_ulp_get_stats(void *handle)
+{
+ struct bnx2fc_hba *hba = handle;
+ struct cnic_dev *cnic;
+ struct fcoe_stats_info *stats_addr;
+
+ if (!hba)
+ return -EINVAL;
+
+ cnic = hba->cnic;
+ stats_addr = &cnic->stats_addr->fcoe_stat;
+ if (!stats_addr)
+ return -EINVAL;
+
+ strncpy(stats_addr->version, BNX2FC_VERSION,
+ sizeof(stats_addr->version));
+ stats_addr->txq_size = BNX2FC_SQ_WQES_MAX;
+ stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX;
+
+ return 0;
+}
+
+
+/**
+ * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
+ *
+ * @handle: transport handle pointing to adapter structure
+ *
+ * This function maps adapter structure to pcidev structure and initiates
+ * firmware handshake to enable/initialize on-chip FCoE components.
+ * This bnx2fc - cnic interface api callback is used after following
+ * conditions are met -
+ * a) underlying network interface is up (marked by event NETDEV_UP
+ * from netdev
+ * b) bnx2fc adatper structure is registered.
+ */
+static void bnx2fc_ulp_start(void *handle)
+{
+ struct bnx2fc_hba *hba = handle;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ struct fc_lport *lport;
+
+ mutex_lock(&bnx2fc_dev_lock);
+
+ if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
+ bnx2fc_fw_init(hba);
+
+ BNX2FC_MISC_DBG("bnx2fc started.\n");
+
+ list_for_each_entry(interface, &if_list, list) {
+ if (interface->hba == hba) {
+ ctlr = bnx2fc_to_ctlr(interface);
+ lport = ctlr->lp;
+ /* Kick off Fabric discovery*/
+ printk(KERN_ERR PFX "ulp_init: start discovery\n");
+ lport->tt.frame_send = bnx2fc_xmit;
+ bnx2fc_start_disc(interface);
+ }
+ }
+
+ mutex_unlock(&bnx2fc_dev_lock);
+}
+
+static void bnx2fc_port_shutdown(struct fc_lport *lport)
+{
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ fc_fabric_logoff(lport);
+ fc_lport_destroy(lport);
+}
+
+static void bnx2fc_stop(struct bnx2fc_interface *interface)
+{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport;
+ struct fc_lport *vport;
+
+ if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
+ return;
+
+ lport = ctlr->lp;
+ bnx2fc_port_shutdown(lport);
+
+ mutex_lock(&lport->lp_mutex);
+ list_for_each_entry(vport, &lport->vports, list)
+ fc_host_port_type(vport->host) =
+ FC_PORTTYPE_UNKNOWN;
+ mutex_unlock(&lport->lp_mutex);
+ fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+ fcoe_ctlr_link_down(ctlr);
+ fcoe_clean_pending_queue(lport);
+}
+
+static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
+{
+#define BNX2FC_INIT_POLL_TIME (1000 / HZ)
+ int rc = -1;
+ int i = HZ;
+
+ rc = bnx2fc_bind_adapter_devices(hba);
+ if (rc) {
+ printk(KERN_ALERT PFX
+ "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
+ goto err_out;
+ }
+
+ rc = bnx2fc_send_fw_fcoe_init_msg(hba);
+ if (rc) {
+ printk(KERN_ALERT PFX
+ "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
+ goto err_unbind;
+ }
+
+ /*
+ * Wait until the adapter init message is complete, and adapter
+ * state is UP.
+ */
+ while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
+ msleep(BNX2FC_INIT_POLL_TIME);
+
+ if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
+ printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. "
+ "Ignoring...\n",
+ hba->cnic->netdev->name);
+ rc = -1;
+ goto err_unbind;
+ }
+
+
+ set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
+ return 0;
+
+err_unbind:
+ bnx2fc_unbind_adapter_devices(hba);
+err_out:
+ return rc;
+}
+
+static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
+{
+ if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
+ if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
+ init_timer(&hba->destroy_timer);
+ hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
+ jiffies;
+ hba->destroy_timer.function = bnx2fc_destroy_timer;
+ hba->destroy_timer.data = (unsigned long)hba;
+ add_timer(&hba->destroy_timer);
+ wait_event_interruptible(hba->destroy_wait,
+ test_bit(BNX2FC_FLAG_DESTROY_CMPL,
+ &hba->flags));
+ clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
+ /* This should never happen */
+ if (signal_pending(current))
+ flush_signals(current);
+
+ del_timer_sync(&hba->destroy_timer);
+ }
+ bnx2fc_unbind_adapter_devices(hba);
+ }
+}
+
+/**
+ * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
+ *
+ * @handle: transport handle pointing to adapter structure
+ *
+ * Driver checks if adapter is already in shutdown mode, if not start
+ * the shutdown process.
+ */
+static void bnx2fc_ulp_stop(void *handle)
+{
+ struct bnx2fc_hba *hba = handle;
+ struct bnx2fc_interface *interface;
+
+ printk(KERN_ERR "ULP_STOP\n");
+
+ mutex_lock(&bnx2fc_dev_lock);
+ if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
+ goto exit;
+ list_for_each_entry(interface, &if_list, list) {
+ if (interface->hba == hba)
+ bnx2fc_stop(interface);
+ }
+ BUG_ON(hba->num_ofld_sess != 0);
+
+ mutex_lock(&hba->hba_mutex);
+ clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+ clear_bit(ADAPTER_STATE_GOING_DOWN,
+ &hba->adapter_state);
+
+ clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
+ mutex_unlock(&hba->hba_mutex);
+
+ bnx2fc_fw_destroy(hba);
+exit:
+ mutex_unlock(&bnx2fc_dev_lock);
+}
+
+static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
+{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport;
+ int wait_cnt = 0;
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ /* Kick off FIP/FLOGI */
+ if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
+ printk(KERN_ERR PFX "Init not done yet\n");
+ return;
+ }
+
+ lport = ctlr->lp;
+ BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
+
+ if (!bnx2fc_link_ok(lport) && interface->enabled) {
+ BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
+ fcoe_ctlr_link_up(ctlr);
+ fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
+ set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
+ }
+
+ /* wait for the FCF to be selected before issuing FLOGI */
+ while (!ctlr->sel_fcf) {
+ msleep(250);
+ /* give up after 3 secs */
+ if (++wait_cnt > 12)
+ break;
+ }
+
+ /* Reset max receive frame size to default */
+ if (fc_set_mfs(lport, BNX2FC_MFS))
+ return;
+
+ fc_lport_init(lport);
+ fc_fabric_login(lport);
+}
+
+
+/**
+ * bnx2fc_ulp_init - Initialize an adapter instance
+ *
+ * @dev : cnic device handle
+ * Called from cnic_register_driver() context to initialize all
+ * enumerated cnic devices. This routine allocates adapter structure
+ * and other device specific resources.
+ */
+static void bnx2fc_ulp_init(struct cnic_dev *dev)
+{
+ struct bnx2fc_hba *hba;
+ int rc = 0;
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ /* bnx2fc works only when bnx2x is loaded */
+ if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
+ (dev->max_fcoe_conn == 0)) {
+ printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
+ " flags: %lx fcoe_conn: %d\n",
+ dev->netdev->name, dev->flags, dev->max_fcoe_conn);
+ return;
+ }
+
+ hba = bnx2fc_hba_create(dev);
+ if (!hba) {
+ printk(KERN_ERR PFX "hba initialization failed\n");
+ return;
+ }
+
+ /* Add HBA to the adapter list */
+ mutex_lock(&bnx2fc_dev_lock);
+ list_add_tail(&hba->list, &adapter_list);
+ adapter_count++;
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ dev->fcoe_cap = &hba->fcoe_cap;
+ clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
+ rc = dev->register_device(dev, CNIC_ULP_FCOE,
+ (void *) hba);
+ if (rc)
+ printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
+ else
+ set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
+}
+
+/* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
+static int __bnx2fc_disable(struct fcoe_ctlr *ctlr)
+{
+ struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
+
+ if (interface->enabled == true) {
+ if (!ctlr->lp) {
+ pr_err(PFX "__bnx2fc_disable: lport not found\n");
+ return -ENODEV;
+ } else {
+ interface->enabled = false;
+ fcoe_ctlr_link_down(ctlr);
+ fcoe_clean_pending_queue(ctlr->lp);
+ }
+ }
+ return 0;
+}
+
+/**
+ * Deperecated: Use bnx2fc_enabled()
+ */
+static int bnx2fc_disable(struct net_device *netdev)
+{
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ int rc = 0;
+
+ rtnl_lock();
+ mutex_lock(&bnx2fc_dev_lock);
+
+ interface = bnx2fc_interface_lookup(netdev);
+ ctlr = bnx2fc_to_ctlr(interface);
+
+ if (!interface) {
+ rc = -ENODEV;
+ pr_err(PFX "bnx2fc_disable: interface not found\n");
+ } else {
+ rc = __bnx2fc_disable(ctlr);
+ }
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+static int __bnx2fc_enable(struct fcoe_ctlr *ctlr)
+{
+ struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
+
+ if (interface->enabled == false) {
+ if (!ctlr->lp) {
+ pr_err(PFX "__bnx2fc_enable: lport not found\n");
+ return -ENODEV;
+ } else if (!bnx2fc_link_ok(ctlr->lp)) {
+ fcoe_ctlr_link_up(ctlr);
+ interface->enabled = true;
+ }
+ }
+ return 0;
+}
+
+/**
+ * Deprecated: Use bnx2fc_enabled()
+ */
+static int bnx2fc_enable(struct net_device *netdev)
+{
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ int rc = 0;
+
+ rtnl_lock();
+ mutex_lock(&bnx2fc_dev_lock);
+
+ interface = bnx2fc_interface_lookup(netdev);
+ ctlr = bnx2fc_to_ctlr(interface);
+ if (!interface) {
+ rc = -ENODEV;
+ pr_err(PFX "bnx2fc_enable: interface not found\n");
+ } else {
+ rc = __bnx2fc_enable(ctlr);
+ }
+
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+/**
+ * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller
+ * @cdev: The FCoE Controller that is being enabled or disabled
+ *
+ * fcoe_sysfs will ensure that the state of 'enabled' has
+ * changed, so no checking is necessary here. This routine simply
+ * calls fcoe_enable or fcoe_disable, both of which are deprecated.
+ * When those routines are removed the functionality can be merged
+ * here.
+ */
+static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev)
+{
+ struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev);
+
+ switch (cdev->enabled) {
+ case FCOE_CTLR_ENABLED:
+ return __bnx2fc_enable(ctlr);
+ case FCOE_CTLR_DISABLED:
+ return __bnx2fc_disable(ctlr);
+ case FCOE_CTLR_UNUSED:
+ default:
+ return -ENOTSUPP;
+ };
+}
+
+enum bnx2fc_create_link_state {
+ BNX2FC_CREATE_LINK_DOWN,
+ BNX2FC_CREATE_LINK_UP,
+};
+
+/**
+ * _bnx2fc_create() - Create bnx2fc FCoE interface
+ * @netdev : The net_device object the Ethernet interface to create on
+ * @fip_mode: The FIP mode for this creation
+ * @link_state: The ctlr link state on creation
+ *
+ * Called from either the libfcoe 'create' module parameter
+ * via fcoe_create or from fcoe_syfs's ctlr_create file.
+ *
+ * libfcoe's 'create' module parameter is deprecated so some
+ * consolidation of code can be done when that interface is
+ * removed.
+ *
+ * Returns: 0 for success
+ */
+static int _bnx2fc_create(struct net_device *netdev,
+ enum fip_state fip_mode,
+ enum bnx2fc_create_link_state link_state)
+{
+ struct fcoe_ctlr_device *cdev;
+ struct fcoe_ctlr *ctlr;
+ struct bnx2fc_interface *interface;
+ struct bnx2fc_hba *hba;
+ struct net_device *phys_dev = netdev;
+ struct fc_lport *lport;
+ struct ethtool_drvinfo drvinfo;
+ int rc = 0;
+ int vlan_id = 0;
+
+ BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
+ if (fip_mode != FIP_MODE_FABRIC) {
+ printk(KERN_ERR "fip mode not FABRIC\n");
+ return -EIO;
+ }
+
+ rtnl_lock();
+
+ mutex_lock(&bnx2fc_dev_lock);
+
+ if (!try_module_get(THIS_MODULE)) {
+ rc = -EINVAL;
+ goto mod_err;
+ }
+
+ /* obtain physical netdev */
+ if (netdev->priv_flags & IFF_802_1Q_VLAN)
+ phys_dev = vlan_dev_real_dev(netdev);
+
+ /* verify if the physical device is a netxtreme2 device */
+ if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
+ memset(&drvinfo, 0, sizeof(drvinfo));
+ phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
+ if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
+ printk(KERN_ERR PFX "Not a netxtreme2 device\n");
+ rc = -EINVAL;
+ goto netdev_err;
+ }
+ } else {
+ printk(KERN_ERR PFX "unable to obtain drv_info\n");
+ rc = -EINVAL;
+ goto netdev_err;
+ }
+
+ /* obtain interface and initialize rest of the structure */
+ hba = bnx2fc_hba_lookup(phys_dev);
+ if (!hba) {
+ rc = -ENODEV;
+ printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
+ goto netdev_err;
+ }
+
+ if (bnx2fc_interface_lookup(netdev)) {
+ rc = -EEXIST;
+ goto netdev_err;
+ }
+
+ interface = bnx2fc_interface_create(hba, netdev, fip_mode);
+ if (!interface) {
+ printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
+ goto ifput_err;
+ }
+
+ if (netdev->priv_flags & IFF_802_1Q_VLAN) {
+ vlan_id = vlan_dev_vlan_id(netdev);
+ interface->vlan_enabled = 1;
+ }
+
+ ctlr = bnx2fc_to_ctlr(interface);
+ cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
+ interface->vlan_id = vlan_id;
+
+ interface->timer_work_queue =
+ create_singlethread_workqueue("bnx2fc_timer_wq");
+ if (!interface->timer_work_queue) {
+ printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
+ rc = -EINVAL;
+ goto ifput_err;
+ }
+
+ lport = bnx2fc_if_create(interface, &cdev->dev, 0);
+ if (!lport) {
+ printk(KERN_ERR PFX "Failed to create interface (%s)\n",
+ netdev->name);
+ rc = -EINVAL;
+ goto if_create_err;
+ }
+
+ /* Add interface to if_list */
+ list_add_tail(&interface->list, &if_list);
+
+ lport->boot_time = jiffies;
+
+ /* Make this master N_port */
+ ctlr->lp = lport;
+
+ if (link_state == BNX2FC_CREATE_LINK_UP)
+ cdev->enabled = FCOE_CTLR_ENABLED;
+ else
+ cdev->enabled = FCOE_CTLR_DISABLED;
+
+ if (link_state == BNX2FC_CREATE_LINK_UP &&
+ !bnx2fc_link_ok(lport)) {
+ fcoe_ctlr_link_up(ctlr);
+ fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
+ set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
+ }
+
+ BNX2FC_HBA_DBG(lport, "create: START DISC\n");
+ bnx2fc_start_disc(interface);
+
+ if (link_state == BNX2FC_CREATE_LINK_UP)
+ interface->enabled = true;
+
+ /*
+ * Release from kref_init in bnx2fc_interface_setup, on success
+ * lport should be holding a reference taken in bnx2fc_if_create
+ */
+ bnx2fc_interface_put(interface);
+ /* put netdev that was held while calling dev_get_by_name */
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return 0;
+
+if_create_err:
+ destroy_workqueue(interface->timer_work_queue);
+ifput_err:
+ bnx2fc_net_cleanup(interface);
+ bnx2fc_interface_put(interface);
+ goto mod_err;
+netdev_err:
+ module_put(THIS_MODULE);
+mod_err:
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+/**
+ * bnx2fc_create() - Create a bnx2fc interface
+ * @netdev : The net_device object the Ethernet interface to create on
+ * @fip_mode: The FIP mode for this creation
+ *
+ * Called from fcoe transport
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
+{
+ return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP);
+}
+
+/**
+ * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs
+ * @netdev: The net_device to be used by the allocated FCoE Controller
+ *
+ * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr
+ * in a link_down state. The allows the user an opportunity to configure
+ * the FCoE Controller from sysfs before enabling the FCoE Controller.
+ *
+ * Creating in with this routine starts the FCoE Controller in Fabric
+ * mode. The user can change to VN2VN or another mode before enabling.
+ */
+static int bnx2fc_ctlr_alloc(struct net_device *netdev)
+{
+ return _bnx2fc_create(netdev, FIP_MODE_FABRIC,
+ BNX2FC_CREATE_LINK_DOWN);
+}
+
+/**
+ * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
+ *
+ * @cnic: Pointer to cnic device instance
+ *
+ **/
+static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
+{
+ struct bnx2fc_hba *hba;
+
+ /* Called with bnx2fc_dev_lock held */
+ list_for_each_entry(hba, &adapter_list, list) {
+ if (hba->cnic == cnic)
+ return hba;
+ }
+ return NULL;
+}
+
+static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
+ *netdev)
+{
+ struct bnx2fc_interface *interface;
+
+ /* Called with bnx2fc_dev_lock held */
+ list_for_each_entry(interface, &if_list, list) {
+ if (interface->netdev == netdev)
+ return interface;
+ }
+ return NULL;
+}
+
+static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
+ *phys_dev)
+{
+ struct bnx2fc_hba *hba;
+
+ /* Called with bnx2fc_dev_lock held */
+ list_for_each_entry(hba, &adapter_list, list) {
+ if (hba->phys_dev == phys_dev)
+ return hba;
+ }
+ printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
+ return NULL;
+}
+
+/**
+ * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
+ *
+ * @dev cnic device handle
+ */
+static void bnx2fc_ulp_exit(struct cnic_dev *dev)
+{
+ struct bnx2fc_hba *hba;
+ struct bnx2fc_interface *interface, *tmp;
+
+ BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
+
+ if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
+ printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
+ dev->netdev->name, dev->flags);
+ return;
+ }
+
+ mutex_lock(&bnx2fc_dev_lock);
+ hba = bnx2fc_find_hba_for_cnic(dev);
+ if (!hba) {
+ printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
+ dev);
+ mutex_unlock(&bnx2fc_dev_lock);
+ return;
+ }
+
+ list_del_init(&hba->list);
+ adapter_count--;
+
+ list_for_each_entry_safe(interface, tmp, &if_list, list)
+ /* destroy not called yet, move to quiesced list */
+ if (interface->hba == hba)
+ __bnx2fc_destroy(interface);
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ /* Ensure ALL destroy work has been completed before return */
+ flush_workqueue(bnx2fc_wq);
+
+ bnx2fc_ulp_stop(hba);
+ /* unregister cnic device */
+ if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
+ hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
+ bnx2fc_hba_destroy(hba);
+}
+
+/**
+ * bnx2fc_fcoe_reset - Resets the fcoe
+ *
+ * @shost: shost the reset is from
+ *
+ * Returns: always 0
+ */
+static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
+{
+ struct fc_lport *lport = shost_priv(shost);
+ fc_lport_reset(lport);
+ return 0;
+}
+
+
+static bool bnx2fc_match(struct net_device *netdev)
+{
+ struct net_device *phys_dev = netdev;
+
+ mutex_lock(&bnx2fc_dev_lock);
+ if (netdev->priv_flags & IFF_802_1Q_VLAN)
+ phys_dev = vlan_dev_real_dev(netdev);
+
+ if (bnx2fc_hba_lookup(phys_dev)) {
+ mutex_unlock(&bnx2fc_dev_lock);
+ return true;
+ }
+
+ mutex_unlock(&bnx2fc_dev_lock);
+ return false;
+}
+
+
+static struct fcoe_transport bnx2fc_transport = {
+ .name = {"bnx2fc"},
+ .attached = false,
+ .list = LIST_HEAD_INIT(bnx2fc_transport.list),
+ .alloc = bnx2fc_ctlr_alloc,
+ .match = bnx2fc_match,
+ .create = bnx2fc_create,
+ .destroy = bnx2fc_destroy,
+ .enable = bnx2fc_enable,
+ .disable = bnx2fc_disable,
+};
+
+/**
+ * bnx2fc_percpu_thread_create - Create a receive thread for an
+ * online CPU
+ *
+ * @cpu: cpu index for the online cpu
+ */
+static void bnx2fc_percpu_thread_create(unsigned int cpu)
+{
+ struct bnx2fc_percpu_s *p;
+ struct task_struct *thread;
+
+ p = &per_cpu(bnx2fc_percpu, cpu);
+
+ thread = kthread_create_on_node(bnx2fc_percpu_io_thread,
+ (void *)p, cpu_to_node(cpu),
+ "bnx2fc_thread/%d", cpu);
+ /* bind thread to the cpu */
+ if (likely(!IS_ERR(thread))) {
+ kthread_bind(thread, cpu);
+ p->iothread = thread;
+ wake_up_process(thread);
+ }
+}
+
+static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
+{
+ struct bnx2fc_percpu_s *p;
+ struct task_struct *thread;
+ struct bnx2fc_work *work, *tmp;
+
+ BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
+
+ /* Prevent any new work from being queued for this CPU */
+ p = &per_cpu(bnx2fc_percpu, cpu);
+ spin_lock_bh(&p->fp_work_lock);
+ thread = p->iothread;
+ p->iothread = NULL;
+
+
+ /* Free all work in the list */
+ list_for_each_entry_safe(work, tmp, &p->work_list, list) {
+ list_del_init(&work->list);
+ bnx2fc_process_cq_compl(work->tgt, work->wqe);
+ kfree(work);
+ }
+
+ spin_unlock_bh(&p->fp_work_lock);
+
+ if (thread)
+ kthread_stop(thread);
+}
+
+/**
+ * bnx2fc_cpu_callback - Handler for CPU hotplug events
+ *
+ * @nfb: The callback data block
+ * @action: The event triggering the callback
+ * @hcpu: The index of the CPU that the event is for
+ *
+ * This creates or destroys per-CPU data for fcoe
+ *
+ * Returns NOTIFY_OK always.
+ */
+static int bnx2fc_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+ unsigned cpu = (unsigned long)hcpu;
+
+ switch (action) {
+ case CPU_ONLINE:
+ case CPU_ONLINE_FROZEN:
+ printk(PFX "CPU %x online: Create Rx thread\n", cpu);
+ bnx2fc_percpu_thread_create(cpu);
+ break;
+ case CPU_DEAD:
+ case CPU_DEAD_FROZEN:
+ printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
+ bnx2fc_percpu_thread_destroy(cpu);
+ break;
+ default:
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+/**
+ * bnx2fc_mod_init - module init entry point
+ *
+ * Initialize driver wide global data structures, and register
+ * with cnic module
+ **/
+static int __init bnx2fc_mod_init(void)
+{
+ struct fcoe_percpu_s *bg;
+ struct task_struct *l2_thread;
+ int rc = 0;
+ unsigned int cpu = 0;
+ struct bnx2fc_percpu_s *p;
+
+ printk(KERN_INFO PFX "%s", version);
+
+ /* register as a fcoe transport */
+ rc = fcoe_transport_attach(&bnx2fc_transport);
+ if (rc) {
+ printk(KERN_ERR "failed to register an fcoe transport, check "
+ "if libfcoe is loaded\n");
+ goto out;
+ }
+
+ INIT_LIST_HEAD(&adapter_list);
+ INIT_LIST_HEAD(&if_list);
+ mutex_init(&bnx2fc_dev_lock);
+ adapter_count = 0;
+
+ /* Attach FC transport template */
+ rc = bnx2fc_attach_transport();
+ if (rc)
+ goto detach_ft;
+
+ bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
+ if (!bnx2fc_wq) {
+ rc = -ENOMEM;
+ goto release_bt;
+ }
+
+ bg = &bnx2fc_global;
+ skb_queue_head_init(&bg->fcoe_rx_list);
+ l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
+ (void *)bg,
+ "bnx2fc_l2_thread");
+ if (IS_ERR(l2_thread)) {
+ rc = PTR_ERR(l2_thread);
+ goto free_wq;
+ }
+ wake_up_process(l2_thread);
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ bg->thread = l2_thread;
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+
+ for_each_possible_cpu(cpu) {
+ p = &per_cpu(bnx2fc_percpu, cpu);
+ INIT_LIST_HEAD(&p->work_list);
+ spin_lock_init(&p->fp_work_lock);
+ }
+
+ cpu_notifier_register_begin();
+
+ for_each_online_cpu(cpu) {
+ bnx2fc_percpu_thread_create(cpu);
+ }
+
+ /* Initialize per CPU interrupt thread */
+ __register_hotcpu_notifier(&bnx2fc_cpu_notifier);
+
+ cpu_notifier_register_done();
+
+ cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
+
+ return 0;
+
+free_wq:
+ destroy_workqueue(bnx2fc_wq);
+release_bt:
+ bnx2fc_release_transport();
+detach_ft:
+ fcoe_transport_detach(&bnx2fc_transport);
+out:
+ return rc;
+}
+
+static void __exit bnx2fc_mod_exit(void)
+{
+ LIST_HEAD(to_be_deleted);
+ struct bnx2fc_hba *hba, *next;
+ struct fcoe_percpu_s *bg;
+ struct task_struct *l2_thread;
+ struct sk_buff *skb;
+ unsigned int cpu = 0;
+
+ /*
+ * NOTE: Since cnic calls register_driver routine rtnl_lock,
+ * it will have higher precedence than bnx2fc_dev_lock.
+ * unregister_device() cannot be called with bnx2fc_dev_lock
+ * held.
+ */
+ mutex_lock(&bnx2fc_dev_lock);
+ list_splice(&adapter_list, &to_be_deleted);
+ INIT_LIST_HEAD(&adapter_list);
+ adapter_count = 0;
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ /* Unregister with cnic */
+ list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
+ list_del_init(&hba->list);
+ printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
+ hba);
+ bnx2fc_ulp_stop(hba);
+ /* unregister cnic device */
+ if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
+ &hba->reg_with_cnic))
+ hba->cnic->unregister_device(hba->cnic,
+ CNIC_ULP_FCOE);
+ bnx2fc_hba_destroy(hba);
+ }
+ cnic_unregister_driver(CNIC_ULP_FCOE);
+
+ /* Destroy global thread */
+ bg = &bnx2fc_global;
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ l2_thread = bg->thread;
+ bg->thread = NULL;
+ while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
+ kfree_skb(skb);
+
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+
+ if (l2_thread)
+ kthread_stop(l2_thread);
+
+ cpu_notifier_register_begin();
+
+ /* Destroy per cpu threads */
+ for_each_online_cpu(cpu) {
+ bnx2fc_percpu_thread_destroy(cpu);
+ }
+
+ __unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
+
+ cpu_notifier_register_done();
+
+ destroy_workqueue(bnx2fc_wq);
+ /*
+ * detach from scsi transport
+ * must happen after all destroys are done
+ */
+ bnx2fc_release_transport();
+
+ /* detach from fcoe transport */
+ fcoe_transport_detach(&bnx2fc_transport);
+}
+
+module_init(bnx2fc_mod_init);
+module_exit(bnx2fc_mod_exit);
+
+static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = {
+ .set_fcoe_ctlr_enabled = bnx2fc_ctlr_enabled,
+ .get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb,
+ .get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb,
+ .get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb,
+ .get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb,
+ .get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb,
+ .get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb,
+
+ .get_fcoe_fcf_selected = fcoe_fcf_get_selected,
+ .get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id,
+};
+
+static struct fc_function_template bnx2fc_transport_function = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct bnx2fc_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = bnx2fc_get_host_stats,
+
+ .issue_fc_host_lip = bnx2fc_fcoe_reset,
+
+ .terminate_rport_io = fc_rport_terminate_io,
+
+ .vport_create = bnx2fc_vport_create,
+ .vport_delete = bnx2fc_vport_destroy,
+ .vport_disable = bnx2fc_vport_disable,
+ .bsg_request = fc_lport_bsg_request,
+};
+
+static struct fc_function_template bnx2fc_vport_xport_function = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct bnx2fc_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = fc_get_host_stats,
+ .issue_fc_host_lip = bnx2fc_fcoe_reset,
+ .terminate_rport_io = fc_rport_terminate_io,
+ .bsg_request = fc_lport_bsg_request,
+};
+
+/**
+ * scsi_host_template structure used while registering with SCSI-ml
+ */
+static struct scsi_host_template bnx2fc_shost_template = {
+ .module = THIS_MODULE,
+ .name = "Broadcom Offload FCoE Initiator",
+ .queuecommand = bnx2fc_queuecommand,
+ .eh_abort_handler = bnx2fc_eh_abort, /* abts */
+ .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
+ .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
+ .eh_host_reset_handler = fc_eh_host_reset,
+ .slave_alloc = fc_slave_alloc,
+ .change_queue_depth = fc_change_queue_depth,
+ .change_queue_type = fc_change_queue_type,
+ .this_id = -1,
+ .cmd_per_lun = 3,
+ .use_clustering = ENABLE_CLUSTERING,
+ .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD,
+ .max_sectors = 1024,
+};
+
+static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
+ .frame_send = bnx2fc_xmit,
+ .elsct_send = bnx2fc_elsct_send,
+ .fcp_abort_io = bnx2fc_abort_io,
+ .fcp_cleanup = bnx2fc_cleanup,
+ .get_lesb = fcoe_get_lesb,
+ .rport_event_callback = bnx2fc_rport_event_handler,
+};
+
+/**
+ * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
+ * structure carrying callback function pointers
+ */
+static struct cnic_ulp_ops bnx2fc_cnic_cb = {
+ .owner = THIS_MODULE,
+ .cnic_init = bnx2fc_ulp_init,
+ .cnic_exit = bnx2fc_ulp_exit,
+ .cnic_start = bnx2fc_ulp_start,
+ .cnic_stop = bnx2fc_ulp_stop,
+ .indicate_kcqes = bnx2fc_indicate_kcqe,
+ .indicate_netevent = bnx2fc_indicate_netevent,
+ .cnic_get_stats = bnx2fc_ulp_get_stats,
+};
diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
new file mode 100644
index 00000000000..512aed3ae4f
--- /dev/null
+++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
@@ -0,0 +1,2194 @@
+/* bnx2fc_hwi.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * This file contains the code that low level functions that interact
+ * with 57712 FCoE firmware.
+ *
+ * Copyright (c) 2008 - 2013 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+DECLARE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
+
+static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *new_cqe_kcqe);
+static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *ofld_kcqe);
+static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *ofld_kcqe);
+static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code);
+static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *destroy_kcqe);
+
+int bnx2fc_send_stat_req(struct bnx2fc_hba *hba)
+{
+ struct fcoe_kwqe_stat stat_req;
+ struct kwqe *kwqe_arr[2];
+ int num_kwqes = 1;
+ int rc = 0;
+
+ memset(&stat_req, 0x00, sizeof(struct fcoe_kwqe_stat));
+ stat_req.hdr.op_code = FCOE_KWQE_OPCODE_STAT;
+ stat_req.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ stat_req.stat_params_addr_lo = (u32) hba->stats_buf_dma;
+ stat_req.stat_params_addr_hi = (u32) ((u64)hba->stats_buf_dma >> 32);
+
+ kwqe_arr[0] = (struct kwqe *) &stat_req;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+ return rc;
+}
+
+/**
+ * bnx2fc_send_fw_fcoe_init_msg - initiates initial handshake with FCoE f/w
+ *
+ * @hba: adapter structure pointer
+ *
+ * Send down FCoE firmware init KWQEs which initiates the initial handshake
+ * with the f/w.
+ *
+ */
+int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba)
+{
+ struct fcoe_kwqe_init1 fcoe_init1;
+ struct fcoe_kwqe_init2 fcoe_init2;
+ struct fcoe_kwqe_init3 fcoe_init3;
+ struct kwqe *kwqe_arr[3];
+ int num_kwqes = 3;
+ int rc = 0;
+
+ if (!hba->cnic) {
+ printk(KERN_ERR PFX "hba->cnic NULL during fcoe fw init\n");
+ return -ENODEV;
+ }
+
+ /* fill init1 KWQE */
+ memset(&fcoe_init1, 0x00, sizeof(struct fcoe_kwqe_init1));
+ fcoe_init1.hdr.op_code = FCOE_KWQE_OPCODE_INIT1;
+ fcoe_init1.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+ FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ fcoe_init1.num_tasks = hba->max_tasks;
+ fcoe_init1.sq_num_wqes = BNX2FC_SQ_WQES_MAX;
+ fcoe_init1.rq_num_wqes = BNX2FC_RQ_WQES_MAX;
+ fcoe_init1.rq_buffer_log_size = BNX2FC_RQ_BUF_LOG_SZ;
+ fcoe_init1.cq_num_wqes = BNX2FC_CQ_WQES_MAX;
+ fcoe_init1.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma;
+ fcoe_init1.dummy_buffer_addr_hi = (u32) ((u64)hba->dummy_buf_dma >> 32);
+ fcoe_init1.task_list_pbl_addr_lo = (u32) hba->task_ctx_bd_dma;
+ fcoe_init1.task_list_pbl_addr_hi =
+ (u32) ((u64) hba->task_ctx_bd_dma >> 32);
+ fcoe_init1.mtu = BNX2FC_MINI_JUMBO_MTU;
+
+ fcoe_init1.flags = (PAGE_SHIFT <<
+ FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT);
+
+ fcoe_init1.num_sessions_log = BNX2FC_NUM_MAX_SESS_LOG;
+
+ /* fill init2 KWQE */
+ memset(&fcoe_init2, 0x00, sizeof(struct fcoe_kwqe_init2));
+ fcoe_init2.hdr.op_code = FCOE_KWQE_OPCODE_INIT2;
+ fcoe_init2.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+ FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ fcoe_init2.hsi_major_version = FCOE_HSI_MAJOR_VERSION;
+ fcoe_init2.hsi_minor_version = FCOE_HSI_MINOR_VERSION;
+
+
+ fcoe_init2.hash_tbl_pbl_addr_lo = (u32) hba->hash_tbl_pbl_dma;
+ fcoe_init2.hash_tbl_pbl_addr_hi = (u32)
+ ((u64) hba->hash_tbl_pbl_dma >> 32);
+
+ fcoe_init2.t2_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_dma;
+ fcoe_init2.t2_hash_tbl_addr_hi = (u32)
+ ((u64) hba->t2_hash_tbl_dma >> 32);
+
+ fcoe_init2.t2_ptr_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_ptr_dma;
+ fcoe_init2.t2_ptr_hash_tbl_addr_hi = (u32)
+ ((u64) hba->t2_hash_tbl_ptr_dma >> 32);
+
+ fcoe_init2.free_list_count = BNX2FC_NUM_MAX_SESS;
+
+ /* fill init3 KWQE */
+ memset(&fcoe_init3, 0x00, sizeof(struct fcoe_kwqe_init3));
+ fcoe_init3.hdr.op_code = FCOE_KWQE_OPCODE_INIT3;
+ fcoe_init3.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+ FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+ fcoe_init3.error_bit_map_lo = 0xffffffff;
+ fcoe_init3.error_bit_map_hi = 0xffffffff;
+
+ /*
+ * enable both cached connection and cached tasks
+ * 0 = none, 1 = cached connection, 2 = cached tasks, 3 = both
+ */
+ fcoe_init3.perf_config = 3;
+
+ kwqe_arr[0] = (struct kwqe *) &fcoe_init1;
+ kwqe_arr[1] = (struct kwqe *) &fcoe_init2;
+ kwqe_arr[2] = (struct kwqe *) &fcoe_init3;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+ return rc;
+}
+int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba)
+{
+ struct fcoe_kwqe_destroy fcoe_destroy;
+ struct kwqe *kwqe_arr[2];
+ int num_kwqes = 1;
+ int rc = -1;
+
+ /* fill destroy KWQE */
+ memset(&fcoe_destroy, 0x00, sizeof(struct fcoe_kwqe_destroy));
+ fcoe_destroy.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY;
+ fcoe_destroy.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+ FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+ kwqe_arr[0] = (struct kwqe *) &fcoe_destroy;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+ return rc;
+}
+
+/**
+ * bnx2fc_send_session_ofld_req - initiates FCoE Session offload process
+ *
+ * @port: port structure pointer
+ * @tgt: bnx2fc_rport structure pointer
+ */
+int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt)
+{
+ struct fc_lport *lport = port->lport;
+ struct bnx2fc_interface *interface = port->priv;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct bnx2fc_hba *hba = interface->hba;
+ struct kwqe *kwqe_arr[4];
+ struct fcoe_kwqe_conn_offload1 ofld_req1;
+ struct fcoe_kwqe_conn_offload2 ofld_req2;
+ struct fcoe_kwqe_conn_offload3 ofld_req3;
+ struct fcoe_kwqe_conn_offload4 ofld_req4;
+ struct fc_rport_priv *rdata = tgt->rdata;
+ struct fc_rport *rport = tgt->rport;
+ int num_kwqes = 4;
+ u32 port_id;
+ int rc = 0;
+ u16 conn_id;
+
+ /* Initialize offload request 1 structure */
+ memset(&ofld_req1, 0x00, sizeof(struct fcoe_kwqe_conn_offload1));
+
+ ofld_req1.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN1;
+ ofld_req1.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+
+ conn_id = (u16)tgt->fcoe_conn_id;
+ ofld_req1.fcoe_conn_id = conn_id;
+
+
+ ofld_req1.sq_addr_lo = (u32) tgt->sq_dma;
+ ofld_req1.sq_addr_hi = (u32)((u64) tgt->sq_dma >> 32);
+
+ ofld_req1.rq_pbl_addr_lo = (u32) tgt->rq_pbl_dma;
+ ofld_req1.rq_pbl_addr_hi = (u32)((u64) tgt->rq_pbl_dma >> 32);
+
+ ofld_req1.rq_first_pbe_addr_lo = (u32) tgt->rq_dma;
+ ofld_req1.rq_first_pbe_addr_hi =
+ (u32)((u64) tgt->rq_dma >> 32);
+
+ ofld_req1.rq_prod = 0x8000;
+
+ /* Initialize offload request 2 structure */
+ memset(&ofld_req2, 0x00, sizeof(struct fcoe_kwqe_conn_offload2));
+
+ ofld_req2.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN2;
+ ofld_req2.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ ofld_req2.tx_max_fc_pay_len = rdata->maxframe_size;
+
+ ofld_req2.cq_addr_lo = (u32) tgt->cq_dma;
+ ofld_req2.cq_addr_hi = (u32)((u64)tgt->cq_dma >> 32);
+
+ ofld_req2.xferq_addr_lo = (u32) tgt->xferq_dma;
+ ofld_req2.xferq_addr_hi = (u32)((u64)tgt->xferq_dma >> 32);
+
+ ofld_req2.conn_db_addr_lo = (u32)tgt->conn_db_dma;
+ ofld_req2.conn_db_addr_hi = (u32)((u64)tgt->conn_db_dma >> 32);
+
+ /* Initialize offload request 3 structure */
+ memset(&ofld_req3, 0x00, sizeof(struct fcoe_kwqe_conn_offload3));
+
+ ofld_req3.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN3;
+ ofld_req3.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ ofld_req3.vlan_tag = interface->vlan_id <<
+ FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT;
+ ofld_req3.vlan_tag |= 3 << FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT;
+
+ port_id = fc_host_port_id(lport->host);
+ if (port_id == 0) {
+ BNX2FC_HBA_DBG(lport, "ofld_req: port_id = 0, link down?\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Store s_id of the initiator for further reference. This will
+ * be used during disable/destroy during linkdown processing as
+ * when the lport is reset, the port_id also is reset to 0
+ */
+ tgt->sid = port_id;
+ ofld_req3.s_id[0] = (port_id & 0x000000FF);
+ ofld_req3.s_id[1] = (port_id & 0x0000FF00) >> 8;
+ ofld_req3.s_id[2] = (port_id & 0x00FF0000) >> 16;
+
+ port_id = rport->port_id;
+ ofld_req3.d_id[0] = (port_id & 0x000000FF);
+ ofld_req3.d_id[1] = (port_id & 0x0000FF00) >> 8;
+ ofld_req3.d_id[2] = (port_id & 0x00FF0000) >> 16;
+
+ ofld_req3.tx_total_conc_seqs = rdata->max_seq;
+
+ ofld_req3.tx_max_conc_seqs_c3 = rdata->max_seq;
+ ofld_req3.rx_max_fc_pay_len = lport->mfs;
+
+ ofld_req3.rx_total_conc_seqs = BNX2FC_MAX_SEQS;
+ ofld_req3.rx_max_conc_seqs_c3 = BNX2FC_MAX_SEQS;
+ ofld_req3.rx_open_seqs_exch_c3 = 1;
+
+ ofld_req3.confq_first_pbe_addr_lo = tgt->confq_dma;
+ ofld_req3.confq_first_pbe_addr_hi = (u32)((u64) tgt->confq_dma >> 32);
+
+ /* set mul_n_port_ids supported flag to 0, until it is supported */
+ ofld_req3.flags = 0;
+ /*
+ ofld_req3.flags |= (((lport->send_sp_features & FC_SP_FT_MNA) ? 1:0) <<
+ FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT);
+ */
+ /* Info from PLOGI response */
+ ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_EDTR) ? 1 : 0) <<
+ FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT);
+
+ ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
+ FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT);
+
+ /*
+ * Info from PRLI response, this info is used for sequence level error
+ * recovery support
+ */
+ if (tgt->dev_type == TYPE_TAPE) {
+ ofld_req3.flags |= 1 <<
+ FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ_SHIFT;
+ ofld_req3.flags |= (((rdata->flags & FC_RP_FLAGS_REC_SUPPORTED)
+ ? 1 : 0) <<
+ FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT);
+ }
+
+ /* vlan flag */
+ ofld_req3.flags |= (interface->vlan_enabled <<
+ FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT);
+
+ /* C2_VALID and ACK flags are not set as they are not supported */
+
+
+ /* Initialize offload request 4 structure */
+ memset(&ofld_req4, 0x00, sizeof(struct fcoe_kwqe_conn_offload4));
+ ofld_req4.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN4;
+ ofld_req4.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ ofld_req4.e_d_tov_timer_val = lport->e_d_tov / 20;
+
+
+ ofld_req4.src_mac_addr_lo[0] = port->data_src_addr[5];
+ /* local mac */
+ ofld_req4.src_mac_addr_lo[1] = port->data_src_addr[4];
+ ofld_req4.src_mac_addr_mid[0] = port->data_src_addr[3];
+ ofld_req4.src_mac_addr_mid[1] = port->data_src_addr[2];
+ ofld_req4.src_mac_addr_hi[0] = port->data_src_addr[1];
+ ofld_req4.src_mac_addr_hi[1] = port->data_src_addr[0];
+ ofld_req4.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
+ /* fcf mac */
+ ofld_req4.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
+ ofld_req4.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
+ ofld_req4.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
+ ofld_req4.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
+ ofld_req4.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
+
+ ofld_req4.lcq_addr_lo = (u32) tgt->lcq_dma;
+ ofld_req4.lcq_addr_hi = (u32)((u64) tgt->lcq_dma >> 32);
+
+ ofld_req4.confq_pbl_base_addr_lo = (u32) tgt->confq_pbl_dma;
+ ofld_req4.confq_pbl_base_addr_hi =
+ (u32)((u64) tgt->confq_pbl_dma >> 32);
+
+ kwqe_arr[0] = (struct kwqe *) &ofld_req1;
+ kwqe_arr[1] = (struct kwqe *) &ofld_req2;
+ kwqe_arr[2] = (struct kwqe *) &ofld_req3;
+ kwqe_arr[3] = (struct kwqe *) &ofld_req4;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+ return rc;
+}
+
+/**
+ * bnx2fc_send_session_enable_req - initiates FCoE Session enablement
+ *
+ * @port: port structure pointer
+ * @tgt: bnx2fc_rport structure pointer
+ */
+int bnx2fc_send_session_enable_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt)
+{
+ struct kwqe *kwqe_arr[2];
+ struct bnx2fc_interface *interface = port->priv;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct bnx2fc_hba *hba = interface->hba;
+ struct fcoe_kwqe_conn_enable_disable enbl_req;
+ struct fc_lport *lport = port->lport;
+ struct fc_rport *rport = tgt->rport;
+ int num_kwqes = 1;
+ int rc = 0;
+ u32 port_id;
+
+ memset(&enbl_req, 0x00,
+ sizeof(struct fcoe_kwqe_conn_enable_disable));
+ enbl_req.hdr.op_code = FCOE_KWQE_OPCODE_ENABLE_CONN;
+ enbl_req.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ enbl_req.src_mac_addr_lo[0] = port->data_src_addr[5];
+ /* local mac */
+ enbl_req.src_mac_addr_lo[1] = port->data_src_addr[4];
+ enbl_req.src_mac_addr_mid[0] = port->data_src_addr[3];
+ enbl_req.src_mac_addr_mid[1] = port->data_src_addr[2];
+ enbl_req.src_mac_addr_hi[0] = port->data_src_addr[1];
+ enbl_req.src_mac_addr_hi[1] = port->data_src_addr[0];
+ memcpy(tgt->src_addr, port->data_src_addr, ETH_ALEN);
+
+ enbl_req.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
+ enbl_req.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
+ enbl_req.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
+ enbl_req.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
+ enbl_req.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
+ enbl_req.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
+
+ port_id = fc_host_port_id(lport->host);
+ if (port_id != tgt->sid) {
+ printk(KERN_ERR PFX "WARN: enable_req port_id = 0x%x,"
+ "sid = 0x%x\n", port_id, tgt->sid);
+ port_id = tgt->sid;
+ }
+ enbl_req.s_id[0] = (port_id & 0x000000FF);
+ enbl_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
+ enbl_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
+
+ port_id = rport->port_id;
+ enbl_req.d_id[0] = (port_id & 0x000000FF);
+ enbl_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
+ enbl_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
+ enbl_req.vlan_tag = interface->vlan_id <<
+ FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
+ enbl_req.vlan_tag |= 3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
+ enbl_req.vlan_flag = interface->vlan_enabled;
+ enbl_req.context_id = tgt->context_id;
+ enbl_req.conn_id = tgt->fcoe_conn_id;
+
+ kwqe_arr[0] = (struct kwqe *) &enbl_req;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+ return rc;
+}
+
+/**
+ * bnx2fc_send_session_disable_req - initiates FCoE Session disable
+ *
+ * @port: port structure pointer
+ * @tgt: bnx2fc_rport structure pointer
+ */
+int bnx2fc_send_session_disable_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt)
+{
+ struct bnx2fc_interface *interface = port->priv;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct bnx2fc_hba *hba = interface->hba;
+ struct fcoe_kwqe_conn_enable_disable disable_req;
+ struct kwqe *kwqe_arr[2];
+ struct fc_rport *rport = tgt->rport;
+ int num_kwqes = 1;
+ int rc = 0;
+ u32 port_id;
+
+ memset(&disable_req, 0x00,
+ sizeof(struct fcoe_kwqe_conn_enable_disable));
+ disable_req.hdr.op_code = FCOE_KWQE_OPCODE_DISABLE_CONN;
+ disable_req.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ disable_req.src_mac_addr_lo[0] = tgt->src_addr[5];
+ disable_req.src_mac_addr_lo[1] = tgt->src_addr[4];
+ disable_req.src_mac_addr_mid[0] = tgt->src_addr[3];
+ disable_req.src_mac_addr_mid[1] = tgt->src_addr[2];
+ disable_req.src_mac_addr_hi[0] = tgt->src_addr[1];
+ disable_req.src_mac_addr_hi[1] = tgt->src_addr[0];
+
+ disable_req.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
+ disable_req.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
+ disable_req.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
+ disable_req.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
+ disable_req.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
+ disable_req.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
+
+ port_id = tgt->sid;
+ disable_req.s_id[0] = (port_id & 0x000000FF);
+ disable_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
+ disable_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
+
+
+ port_id = rport->port_id;
+ disable_req.d_id[0] = (port_id & 0x000000FF);
+ disable_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
+ disable_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
+ disable_req.context_id = tgt->context_id;
+ disable_req.conn_id = tgt->fcoe_conn_id;
+ disable_req.vlan_tag = interface->vlan_id <<
+ FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
+ disable_req.vlan_tag |=
+ 3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
+ disable_req.vlan_flag = interface->vlan_enabled;
+
+ kwqe_arr[0] = (struct kwqe *) &disable_req;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+ return rc;
+}
+
+/**
+ * bnx2fc_send_session_destroy_req - initiates FCoE Session destroy
+ *
+ * @port: port structure pointer
+ * @tgt: bnx2fc_rport structure pointer
+ */
+int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt)
+{
+ struct fcoe_kwqe_conn_destroy destroy_req;
+ struct kwqe *kwqe_arr[2];
+ int num_kwqes = 1;
+ int rc = 0;
+
+ memset(&destroy_req, 0x00, sizeof(struct fcoe_kwqe_conn_destroy));
+ destroy_req.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY_CONN;
+ destroy_req.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ destroy_req.context_id = tgt->context_id;
+ destroy_req.conn_id = tgt->fcoe_conn_id;
+
+ kwqe_arr[0] = (struct kwqe *) &destroy_req;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+ return rc;
+}
+
+static bool is_valid_lport(struct bnx2fc_hba *hba, struct fc_lport *lport)
+{
+ struct bnx2fc_lport *blport;
+
+ spin_lock_bh(&hba->hba_lock);
+ list_for_each_entry(blport, &hba->vports, list) {
+ if (blport->lport == lport) {
+ spin_unlock_bh(&hba->hba_lock);
+ return true;
+ }
+ }
+ spin_unlock_bh(&hba->hba_lock);
+ return false;
+
+}
+
+
+static void bnx2fc_unsol_els_work(struct work_struct *work)
+{
+ struct bnx2fc_unsol_els *unsol_els;
+ struct fc_lport *lport;
+ struct bnx2fc_hba *hba;
+ struct fc_frame *fp;
+
+ unsol_els = container_of(work, struct bnx2fc_unsol_els, unsol_els_work);
+ lport = unsol_els->lport;
+ fp = unsol_els->fp;
+ hba = unsol_els->hba;
+ if (is_valid_lport(hba, lport))
+ fc_exch_recv(lport, fp);
+ kfree(unsol_els);
+}
+
+void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
+ unsigned char *buf,
+ u32 frame_len, u16 l2_oxid)
+{
+ struct fcoe_port *port = tgt->port;
+ struct fc_lport *lport = port->lport;
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_unsol_els *unsol_els;
+ struct fc_frame_header *fh;
+ struct fc_frame *fp;
+ struct sk_buff *skb;
+ u32 payload_len;
+ u32 crc;
+ u8 op;
+
+
+ unsol_els = kzalloc(sizeof(*unsol_els), GFP_ATOMIC);
+ if (!unsol_els) {
+ BNX2FC_TGT_DBG(tgt, "Unable to allocate unsol_work\n");
+ return;
+ }
+
+ BNX2FC_TGT_DBG(tgt, "l2_frame_compl l2_oxid = 0x%x, frame_len = %d\n",
+ l2_oxid, frame_len);
+
+ payload_len = frame_len - sizeof(struct fc_frame_header);
+
+ fp = fc_frame_alloc(lport, payload_len);
+ if (!fp) {
+ printk(KERN_ERR PFX "fc_frame_alloc failure\n");
+ kfree(unsol_els);
+ return;
+ }
+
+ fh = (struct fc_frame_header *) fc_frame_header_get(fp);
+ /* Copy FC Frame header and payload into the frame */
+ memcpy(fh, buf, frame_len);
+
+ if (l2_oxid != FC_XID_UNKNOWN)
+ fh->fh_ox_id = htons(l2_oxid);
+
+ skb = fp_skb(fp);
+
+ if ((fh->fh_r_ctl == FC_RCTL_ELS_REQ) ||
+ (fh->fh_r_ctl == FC_RCTL_ELS_REP)) {
+
+ if (fh->fh_type == FC_TYPE_ELS) {
+ op = fc_frame_payload_op(fp);
+ if ((op == ELS_TEST) || (op == ELS_ESTC) ||
+ (op == ELS_FAN) || (op == ELS_CSU)) {
+ /*
+ * No need to reply for these
+ * ELS requests
+ */
+ printk(KERN_ERR PFX "dropping ELS 0x%x\n", op);
+ kfree_skb(skb);
+ kfree(unsol_els);
+ return;
+ }
+ }
+ crc = fcoe_fc_crc(fp);
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = FC_SOF_I3;
+ fr_eof(fp) = FC_EOF_T;
+ fr_crc(fp) = cpu_to_le32(~crc);
+ unsol_els->lport = lport;
+ unsol_els->hba = interface->hba;
+ unsol_els->fp = fp;
+ INIT_WORK(&unsol_els->unsol_els_work, bnx2fc_unsol_els_work);
+ queue_work(bnx2fc_wq, &unsol_els->unsol_els_work);
+ } else {
+ BNX2FC_HBA_DBG(lport, "fh_r_ctl = 0x%x\n", fh->fh_r_ctl);
+ kfree_skb(skb);
+ kfree(unsol_els);
+ }
+}
+
+static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
+{
+ u8 num_rq;
+ struct fcoe_err_report_entry *err_entry;
+ unsigned char *rq_data;
+ unsigned char *buf = NULL, *buf1;
+ int i;
+ u16 xid;
+ u32 frame_len, len;
+ struct bnx2fc_cmd *io_req = NULL;
+ struct fcoe_task_ctx_entry *task, *task_page;
+ struct bnx2fc_interface *interface = tgt->port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ int task_idx, index;
+ int rc = 0;
+ u64 err_warn_bit_map;
+ u8 err_warn = 0xff;
+
+
+ BNX2FC_TGT_DBG(tgt, "Entered UNSOL COMPLETION wqe = 0x%x\n", wqe);
+ switch (wqe & FCOE_UNSOLICITED_CQE_SUBTYPE) {
+ case FCOE_UNSOLICITED_FRAME_CQE_TYPE:
+ frame_len = (wqe & FCOE_UNSOLICITED_CQE_PKT_LEN) >>
+ FCOE_UNSOLICITED_CQE_PKT_LEN_SHIFT;
+
+ num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ;
+
+ spin_lock_bh(&tgt->tgt_lock);
+ rq_data = (unsigned char *)bnx2fc_get_next_rqe(tgt, num_rq);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ if (rq_data) {
+ buf = rq_data;
+ } else {
+ buf1 = buf = kmalloc((num_rq * BNX2FC_RQ_BUF_SZ),
+ GFP_ATOMIC);
+
+ if (!buf1) {
+ BNX2FC_TGT_DBG(tgt, "Memory alloc failure\n");
+ break;
+ }
+
+ for (i = 0; i < num_rq; i++) {
+ spin_lock_bh(&tgt->tgt_lock);
+ rq_data = (unsigned char *)
+ bnx2fc_get_next_rqe(tgt, 1);
+ spin_unlock_bh(&tgt->tgt_lock);
+ len = BNX2FC_RQ_BUF_SZ;
+ memcpy(buf1, rq_data, len);
+ buf1 += len;
+ }
+ }
+ bnx2fc_process_l2_frame_compl(tgt, buf, frame_len,
+ FC_XID_UNKNOWN);
+
+ if (buf != rq_data)
+ kfree(buf);
+ spin_lock_bh(&tgt->tgt_lock);
+ bnx2fc_return_rqe(tgt, num_rq);
+ spin_unlock_bh(&tgt->tgt_lock);
+ break;
+
+ case FCOE_ERROR_DETECTION_CQE_TYPE:
+ /*
+ * In case of error reporting CQE a single RQ entry
+ * is consumed.
+ */
+ spin_lock_bh(&tgt->tgt_lock);
+ num_rq = 1;
+ err_entry = (struct fcoe_err_report_entry *)
+ bnx2fc_get_next_rqe(tgt, 1);
+ xid = err_entry->fc_hdr.ox_id;
+ BNX2FC_TGT_DBG(tgt, "Unsol Error Frame OX_ID = 0x%x\n", xid);
+ BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x\n",
+ err_entry->data.err_warn_bitmap_hi,
+ err_entry->data.err_warn_bitmap_lo);
+ BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x\n",
+ err_entry->data.tx_buf_off, err_entry->data.rx_buf_off);
+
+
+ if (xid > hba->max_xid) {
+ BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n",
+ xid);
+ goto ret_err_rqe;
+ }
+
+ task_idx = xid / BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+ task_page = (struct fcoe_task_ctx_entry *)
+ hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+
+ io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
+ if (!io_req)
+ goto ret_err_rqe;
+
+ if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
+ printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
+ goto ret_err_rqe;
+ }
+
+ if (test_and_clear_bit(BNX2FC_FLAG_IO_CLEANUP,
+ &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "unsol_err: cleanup in "
+ "progress.. ignore unsol err\n");
+ goto ret_err_rqe;
+ }
+
+ err_warn_bit_map = (u64)
+ ((u64)err_entry->data.err_warn_bitmap_hi << 32) |
+ (u64)err_entry->data.err_warn_bitmap_lo;
+ for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
+ if (err_warn_bit_map & (u64)((u64)1 << i)) {
+ err_warn = i;
+ break;
+ }
+ }
+
+ /*
+ * If ABTS is already in progress, and FW error is
+ * received after that, do not cancel the timeout_work
+ * and let the error recovery continue by explicitly
+ * logging out the target, when the ABTS eventually
+ * times out.
+ */
+ if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
+ printk(KERN_ERR PFX "err_warn: io_req (0x%x) already "
+ "in ABTS processing\n", xid);
+ goto ret_err_rqe;
+ }
+ BNX2FC_TGT_DBG(tgt, "err = 0x%x\n", err_warn);
+ if (tgt->dev_type != TYPE_TAPE)
+ goto skip_rec;
+ switch (err_warn) {
+ case FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION:
+ case FCOE_ERROR_CODE_DATA_OOO_RO:
+ case FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT:
+ case FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET:
+ case FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ:
+ case FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET:
+ BNX2FC_TGT_DBG(tgt, "REC TOV popped for xid - 0x%x\n",
+ xid);
+ memcpy(&io_req->err_entry, err_entry,
+ sizeof(struct fcoe_err_report_entry));
+ if (!test_bit(BNX2FC_FLAG_SRR_SENT,
+ &io_req->req_flags)) {
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = bnx2fc_send_rec(io_req);
+ spin_lock_bh(&tgt->tgt_lock);
+
+ if (rc)
+ goto skip_rec;
+ } else
+ printk(KERN_ERR PFX "SRR in progress\n");
+ goto ret_err_rqe;
+ break;
+ default:
+ break;
+ }
+
+skip_rec:
+ set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags);
+ /*
+ * Cancel the timeout_work, as we received IO
+ * completion with FW error.
+ */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+
+ rc = bnx2fc_initiate_abts(io_req);
+ if (rc != SUCCESS) {
+ printk(KERN_ERR PFX "err_warn: initiate_abts "
+ "failed xid = 0x%x. issue cleanup\n",
+ io_req->xid);
+ bnx2fc_initiate_cleanup(io_req);
+ }
+ret_err_rqe:
+ bnx2fc_return_rqe(tgt, 1);
+ spin_unlock_bh(&tgt->tgt_lock);
+ break;
+
+ case FCOE_WARNING_DETECTION_CQE_TYPE:
+ /*
+ *In case of warning reporting CQE a single RQ entry
+ * is consumes.
+ */
+ spin_lock_bh(&tgt->tgt_lock);
+ num_rq = 1;
+ err_entry = (struct fcoe_err_report_entry *)
+ bnx2fc_get_next_rqe(tgt, 1);
+ xid = cpu_to_be16(err_entry->fc_hdr.ox_id);
+ BNX2FC_TGT_DBG(tgt, "Unsol Warning Frame OX_ID = 0x%x\n", xid);
+ BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x",
+ err_entry->data.err_warn_bitmap_hi,
+ err_entry->data.err_warn_bitmap_lo);
+ BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x",
+ err_entry->data.tx_buf_off, err_entry->data.rx_buf_off);
+
+ if (xid > hba->max_xid) {
+ BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n", xid);
+ goto ret_warn_rqe;
+ }
+
+ err_warn_bit_map = (u64)
+ ((u64)err_entry->data.err_warn_bitmap_hi << 32) |
+ (u64)err_entry->data.err_warn_bitmap_lo;
+ for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
+ if (err_warn_bit_map & (u64) (1 << i)) {
+ err_warn = i;
+ break;
+ }
+ }
+ BNX2FC_TGT_DBG(tgt, "warn = 0x%x\n", err_warn);
+
+ task_idx = xid / BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+ task_page = (struct fcoe_task_ctx_entry *)
+ interface->hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
+ if (!io_req)
+ goto ret_warn_rqe;
+
+ if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
+ printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
+ goto ret_warn_rqe;
+ }
+
+ memcpy(&io_req->err_entry, err_entry,
+ sizeof(struct fcoe_err_report_entry));
+
+ if (err_warn == FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION)
+ /* REC_TOV is not a warning code */
+ BUG_ON(1);
+ else
+ BNX2FC_TGT_DBG(tgt, "Unsolicited warning\n");
+ret_warn_rqe:
+ bnx2fc_return_rqe(tgt, 1);
+ spin_unlock_bh(&tgt->tgt_lock);
+ break;
+
+ default:
+ printk(KERN_ERR PFX "Unsol Compl: Invalid CQE Subtype\n");
+ break;
+ }
+}
+
+void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe)
+{
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ struct fcoe_port *port = tgt->port;
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct bnx2fc_cmd *io_req;
+ int task_idx, index;
+ u16 xid;
+ u8 cmd_type;
+ u8 rx_state = 0;
+ u8 num_rq;
+
+ spin_lock_bh(&tgt->tgt_lock);
+ xid = wqe & FCOE_PEND_WQ_CQE_TASK_ID;
+ if (xid >= hba->max_tasks) {
+ printk(KERN_ERR PFX "ERROR:xid out of range\n");
+ spin_unlock_bh(&tgt->tgt_lock);
+ return;
+ }
+ task_idx = xid / BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+ task_page = (struct fcoe_task_ctx_entry *)hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+
+ num_rq = ((task->rxwr_txrd.var_ctx.rx_flags &
+ FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE) >>
+ FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE_SHIFT);
+
+ io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
+
+ if (io_req == NULL) {
+ printk(KERN_ERR PFX "ERROR? cq_compl - io_req is NULL\n");
+ spin_unlock_bh(&tgt->tgt_lock);
+ return;
+ }
+
+ /* Timestamp IO completion time */
+ cmd_type = io_req->cmd_type;
+
+ rx_state = ((task->rxwr_txrd.var_ctx.rx_flags &
+ FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE) >>
+ FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE_SHIFT);
+
+ /* Process other IO completion types */
+ switch (cmd_type) {
+ case BNX2FC_SCSI_CMD:
+ if (rx_state == FCOE_TASK_RX_STATE_COMPLETED) {
+ bnx2fc_process_scsi_cmd_compl(io_req, task, num_rq);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return;
+ }
+
+ if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
+ bnx2fc_process_abts_compl(io_req, task, num_rq);
+ else if (rx_state ==
+ FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
+ bnx2fc_process_cleanup_compl(io_req, task, num_rq);
+ else
+ printk(KERN_ERR PFX "Invalid rx state - %d\n",
+ rx_state);
+ break;
+
+ case BNX2FC_TASK_MGMT_CMD:
+ BNX2FC_IO_DBG(io_req, "Processing TM complete\n");
+ bnx2fc_process_tm_compl(io_req, task, num_rq);
+ break;
+
+ case BNX2FC_ABTS:
+ /*
+ * ABTS request received by firmware. ABTS response
+ * will be delivered to the task belonging to the IO
+ * that was aborted
+ */
+ BNX2FC_IO_DBG(io_req, "cq_compl- ABTS sent out by fw\n");
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ break;
+
+ case BNX2FC_ELS:
+ if (rx_state == FCOE_TASK_RX_STATE_COMPLETED)
+ bnx2fc_process_els_compl(io_req, task, num_rq);
+ else if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
+ bnx2fc_process_abts_compl(io_req, task, num_rq);
+ else if (rx_state ==
+ FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
+ bnx2fc_process_cleanup_compl(io_req, task, num_rq);
+ else
+ printk(KERN_ERR PFX "Invalid rx state = %d\n",
+ rx_state);
+ break;
+
+ case BNX2FC_CLEANUP:
+ BNX2FC_IO_DBG(io_req, "cq_compl- cleanup resp rcvd\n");
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ break;
+
+ case BNX2FC_SEQ_CLEANUP:
+ BNX2FC_IO_DBG(io_req, "cq_compl(0x%x) - seq cleanup resp\n",
+ io_req->xid);
+ bnx2fc_process_seq_cleanup_compl(io_req, task, rx_state);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ break;
+
+ default:
+ printk(KERN_ERR PFX "Invalid cmd_type %d\n", cmd_type);
+ break;
+ }
+ spin_unlock_bh(&tgt->tgt_lock);
+}
+
+void bnx2fc_arm_cq(struct bnx2fc_rport *tgt)
+{
+ struct b577xx_fcoe_rx_doorbell *rx_db = &tgt->rx_db;
+ u32 msg;
+
+ wmb();
+ rx_db->doorbell_cq_cons = tgt->cq_cons_idx | (tgt->cq_curr_toggle_bit <<
+ FCOE_CQE_TOGGLE_BIT_SHIFT);
+ msg = *((u32 *)rx_db);
+ writel(cpu_to_le32(msg), tgt->ctx_base);
+ mmiowb();
+
+}
+
+struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe)
+{
+ struct bnx2fc_work *work;
+ work = kzalloc(sizeof(struct bnx2fc_work), GFP_ATOMIC);
+ if (!work)
+ return NULL;
+
+ INIT_LIST_HEAD(&work->list);
+ work->tgt = tgt;
+ work->wqe = wqe;
+ return work;
+}
+
+int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt)
+{
+ struct fcoe_cqe *cq;
+ u32 cq_cons;
+ struct fcoe_cqe *cqe;
+ u32 num_free_sqes = 0;
+ u32 num_cqes = 0;
+ u16 wqe;
+
+ /*
+ * cq_lock is a low contention lock used to protect
+ * the CQ data structure from being freed up during
+ * the upload operation
+ */
+ spin_lock_bh(&tgt->cq_lock);
+
+ if (!tgt->cq) {
+ printk(KERN_ERR PFX "process_new_cqes: cq is NULL\n");
+ spin_unlock_bh(&tgt->cq_lock);
+ return 0;
+ }
+ cq = tgt->cq;
+ cq_cons = tgt->cq_cons_idx;
+ cqe = &cq[cq_cons];
+
+ while (((wqe = cqe->wqe) & FCOE_CQE_TOGGLE_BIT) ==
+ (tgt->cq_curr_toggle_bit <<
+ FCOE_CQE_TOGGLE_BIT_SHIFT)) {
+
+ /* new entry on the cq */
+ if (wqe & FCOE_CQE_CQE_TYPE) {
+ /* Unsolicited event notification */
+ bnx2fc_process_unsol_compl(tgt, wqe);
+ } else {
+ /* Pending work request completion */
+ struct bnx2fc_work *work = NULL;
+ struct bnx2fc_percpu_s *fps = NULL;
+ unsigned int cpu = wqe % num_possible_cpus();
+
+ fps = &per_cpu(bnx2fc_percpu, cpu);
+ spin_lock_bh(&fps->fp_work_lock);
+ if (unlikely(!fps->iothread))
+ goto unlock;
+
+ work = bnx2fc_alloc_work(tgt, wqe);
+ if (work)
+ list_add_tail(&work->list,
+ &fps->work_list);
+unlock:
+ spin_unlock_bh(&fps->fp_work_lock);
+
+ /* Pending work request completion */
+ if (fps->iothread && work)
+ wake_up_process(fps->iothread);
+ else
+ bnx2fc_process_cq_compl(tgt, wqe);
+ num_free_sqes++;
+ }
+ cqe++;
+ tgt->cq_cons_idx++;
+ num_cqes++;
+
+ if (tgt->cq_cons_idx == BNX2FC_CQ_WQES_MAX) {
+ tgt->cq_cons_idx = 0;
+ cqe = cq;
+ tgt->cq_curr_toggle_bit =
+ 1 - tgt->cq_curr_toggle_bit;
+ }
+ }
+ if (num_cqes) {
+ /* Arm CQ only if doorbell is mapped */
+ if (tgt->ctx_base)
+ bnx2fc_arm_cq(tgt);
+ atomic_add(num_free_sqes, &tgt->free_sqes);
+ }
+ spin_unlock_bh(&tgt->cq_lock);
+ return 0;
+}
+
+/**
+ * bnx2fc_fastpath_notification - process global event queue (KCQ)
+ *
+ * @hba: adapter structure pointer
+ * @new_cqe_kcqe: pointer to newly DMA'd KCQ entry
+ *
+ * Fast path event notification handler
+ */
+static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *new_cqe_kcqe)
+{
+ u32 conn_id = new_cqe_kcqe->fcoe_conn_id;
+ struct bnx2fc_rport *tgt = hba->tgt_ofld_list[conn_id];
+
+ if (!tgt) {
+ printk(KERN_ERR PFX "conn_id 0x%x not valid\n", conn_id);
+ return;
+ }
+
+ bnx2fc_process_new_cqes(tgt);
+}
+
+/**
+ * bnx2fc_process_ofld_cmpl - process FCoE session offload completion
+ *
+ * @hba: adapter structure pointer
+ * @ofld_kcqe: connection offload kcqe pointer
+ *
+ * handle session offload completion, enable the session if offload is
+ * successful.
+ */
+static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *ofld_kcqe)
+{
+ struct bnx2fc_rport *tgt;
+ struct fcoe_port *port;
+ struct bnx2fc_interface *interface;
+ u32 conn_id;
+ u32 context_id;
+
+ conn_id = ofld_kcqe->fcoe_conn_id;
+ context_id = ofld_kcqe->fcoe_conn_context_id;
+ tgt = hba->tgt_ofld_list[conn_id];
+ if (!tgt) {
+ printk(KERN_ALERT PFX "ERROR:ofld_cmpl: No pending ofld req\n");
+ return;
+ }
+ BNX2FC_TGT_DBG(tgt, "Entered ofld compl - context_id = 0x%x\n",
+ ofld_kcqe->fcoe_conn_context_id);
+ port = tgt->port;
+ interface = tgt->port->priv;
+ if (hba != interface->hba) {
+ printk(KERN_ERR PFX "ERROR:ofld_cmpl: HBA mis-match\n");
+ goto ofld_cmpl_err;
+ }
+ /*
+ * cnic has allocated a context_id for this session; use this
+ * while enabling the session.
+ */
+ tgt->context_id = context_id;
+ if (ofld_kcqe->completion_status) {
+ if (ofld_kcqe->completion_status ==
+ FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) {
+ printk(KERN_ERR PFX "unable to allocate FCoE context "
+ "resources\n");
+ set_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE, &tgt->flags);
+ }
+ } else {
+ /* FW offload request successfully completed */
+ set_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+ }
+ofld_cmpl_err:
+ set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->ofld_wait);
+}
+
+/**
+ * bnx2fc_process_enable_conn_cmpl - process FCoE session enable completion
+ *
+ * @hba: adapter structure pointer
+ * @ofld_kcqe: connection offload kcqe pointer
+ *
+ * handle session enable completion, mark the rport as ready
+ */
+
+static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *ofld_kcqe)
+{
+ struct bnx2fc_rport *tgt;
+ struct bnx2fc_interface *interface;
+ u32 conn_id;
+ u32 context_id;
+
+ context_id = ofld_kcqe->fcoe_conn_context_id;
+ conn_id = ofld_kcqe->fcoe_conn_id;
+ tgt = hba->tgt_ofld_list[conn_id];
+ if (!tgt) {
+ printk(KERN_ERR PFX "ERROR:enbl_cmpl: No pending ofld req\n");
+ return;
+ }
+
+ BNX2FC_TGT_DBG(tgt, "Enable compl - context_id = 0x%x\n",
+ ofld_kcqe->fcoe_conn_context_id);
+
+ /*
+ * context_id should be the same for this target during offload
+ * and enable
+ */
+ if (tgt->context_id != context_id) {
+ printk(KERN_ERR PFX "context id mis-match\n");
+ return;
+ }
+ interface = tgt->port->priv;
+ if (hba != interface->hba) {
+ printk(KERN_ERR PFX "bnx2fc-enbl_cmpl: HBA mis-match\n");
+ goto enbl_cmpl_err;
+ }
+ if (!ofld_kcqe->completion_status)
+ /* enable successful - rport ready for issuing IOs */
+ set_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
+
+enbl_cmpl_err:
+ set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->ofld_wait);
+}
+
+static void bnx2fc_process_conn_disable_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *disable_kcqe)
+{
+
+ struct bnx2fc_rport *tgt;
+ u32 conn_id;
+
+ conn_id = disable_kcqe->fcoe_conn_id;
+ tgt = hba->tgt_ofld_list[conn_id];
+ if (!tgt) {
+ printk(KERN_ERR PFX "ERROR: disable_cmpl: No disable req\n");
+ return;
+ }
+
+ BNX2FC_TGT_DBG(tgt, PFX "disable_cmpl: conn_id %d\n", conn_id);
+
+ if (disable_kcqe->completion_status) {
+ printk(KERN_ERR PFX "Disable failed with cmpl status %d\n",
+ disable_kcqe->completion_status);
+ set_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->upld_wait);
+ } else {
+ /* disable successful */
+ BNX2FC_TGT_DBG(tgt, "disable successful\n");
+ clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+ clear_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->upld_wait);
+ }
+}
+
+static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *destroy_kcqe)
+{
+ struct bnx2fc_rport *tgt;
+ u32 conn_id;
+
+ conn_id = destroy_kcqe->fcoe_conn_id;
+ tgt = hba->tgt_ofld_list[conn_id];
+ if (!tgt) {
+ printk(KERN_ERR PFX "destroy_cmpl: No destroy req\n");
+ return;
+ }
+
+ BNX2FC_TGT_DBG(tgt, "destroy_cmpl: conn_id %d\n", conn_id);
+
+ if (destroy_kcqe->completion_status) {
+ printk(KERN_ERR PFX "Destroy conn failed, cmpl status %d\n",
+ destroy_kcqe->completion_status);
+ return;
+ } else {
+ /* destroy successful */
+ BNX2FC_TGT_DBG(tgt, "upload successful\n");
+ clear_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->upld_wait);
+ }
+}
+
+static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code)
+{
+ switch (err_code) {
+ case FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE:
+ printk(KERN_ERR PFX "init_failure due to invalid opcode\n");
+ break;
+
+ case FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE:
+ printk(KERN_ERR PFX "init failed due to ctx alloc failure\n");
+ break;
+
+ case FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR:
+ printk(KERN_ERR PFX "init_failure due to NIC error\n");
+ break;
+ case FCOE_KCQE_COMPLETION_STATUS_ERROR:
+ printk(KERN_ERR PFX "init failure due to compl status err\n");
+ break;
+ case FCOE_KCQE_COMPLETION_STATUS_WRONG_HSI_VERSION:
+ printk(KERN_ERR PFX "init failure due to HSI mismatch\n");
+ break;
+ default:
+ printk(KERN_ERR PFX "Unknown Error code %d\n", err_code);
+ }
+}
+
+/**
+ * bnx2fc_indicae_kcqe - process KCQE
+ *
+ * @hba: adapter structure pointer
+ * @kcqe: kcqe pointer
+ * @num_cqe: Number of completion queue elements
+ *
+ * Generic KCQ event handler
+ */
+void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
+ u32 num_cqe)
+{
+ struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
+ int i = 0;
+ struct fcoe_kcqe *kcqe = NULL;
+
+ while (i < num_cqe) {
+ kcqe = (struct fcoe_kcqe *) kcq[i++];
+
+ switch (kcqe->op_code) {
+ case FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION:
+ bnx2fc_fastpath_notification(hba, kcqe);
+ break;
+
+ case FCOE_KCQE_OPCODE_OFFLOAD_CONN:
+ bnx2fc_process_ofld_cmpl(hba, kcqe);
+ break;
+
+ case FCOE_KCQE_OPCODE_ENABLE_CONN:
+ bnx2fc_process_enable_conn_cmpl(hba, kcqe);
+ break;
+
+ case FCOE_KCQE_OPCODE_INIT_FUNC:
+ if (kcqe->completion_status !=
+ FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
+ bnx2fc_init_failure(hba,
+ kcqe->completion_status);
+ } else {
+ set_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+ bnx2fc_get_link_state(hba);
+ printk(KERN_INFO PFX "[%.2x]: FCOE_INIT passed\n",
+ (u8)hba->pcidev->bus->number);
+ }
+ break;
+
+ case FCOE_KCQE_OPCODE_DESTROY_FUNC:
+ if (kcqe->completion_status !=
+ FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
+
+ printk(KERN_ERR PFX "DESTROY failed\n");
+ } else {
+ printk(KERN_ERR PFX "DESTROY success\n");
+ }
+ set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
+ wake_up_interruptible(&hba->destroy_wait);
+ break;
+
+ case FCOE_KCQE_OPCODE_DISABLE_CONN:
+ bnx2fc_process_conn_disable_cmpl(hba, kcqe);
+ break;
+
+ case FCOE_KCQE_OPCODE_DESTROY_CONN:
+ bnx2fc_process_conn_destroy_cmpl(hba, kcqe);
+ break;
+
+ case FCOE_KCQE_OPCODE_STAT_FUNC:
+ if (kcqe->completion_status !=
+ FCOE_KCQE_COMPLETION_STATUS_SUCCESS)
+ printk(KERN_ERR PFX "STAT failed\n");
+ complete(&hba->stat_req_done);
+ break;
+
+ case FCOE_KCQE_OPCODE_FCOE_ERROR:
+ /* fall thru */
+ default:
+ printk(KERN_ERR PFX "unknown opcode 0x%x\n",
+ kcqe->op_code);
+ }
+ }
+}
+
+void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid)
+{
+ struct fcoe_sqe *sqe;
+
+ sqe = &tgt->sq[tgt->sq_prod_idx];
+
+ /* Fill SQ WQE */
+ sqe->wqe = xid << FCOE_SQE_TASK_ID_SHIFT;
+ sqe->wqe |= tgt->sq_curr_toggle_bit << FCOE_SQE_TOGGLE_BIT_SHIFT;
+
+ /* Advance SQ Prod Idx */
+ if (++tgt->sq_prod_idx == BNX2FC_SQ_WQES_MAX) {
+ tgt->sq_prod_idx = 0;
+ tgt->sq_curr_toggle_bit = 1 - tgt->sq_curr_toggle_bit;
+ }
+}
+
+void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt)
+{
+ struct b577xx_doorbell_set_prod *sq_db = &tgt->sq_db;
+ u32 msg;
+
+ wmb();
+ sq_db->prod = tgt->sq_prod_idx |
+ (tgt->sq_curr_toggle_bit << 15);
+ msg = *((u32 *)sq_db);
+ writel(cpu_to_le32(msg), tgt->ctx_base);
+ mmiowb();
+
+}
+
+int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt)
+{
+ u32 context_id = tgt->context_id;
+ struct fcoe_port *port = tgt->port;
+ u32 reg_off;
+ resource_size_t reg_base;
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+
+ reg_base = pci_resource_start(hba->pcidev,
+ BNX2X_DOORBELL_PCI_BAR);
+ reg_off = (1 << BNX2X_DB_SHIFT) * (context_id & 0x1FFFF);
+ tgt->ctx_base = ioremap_nocache(reg_base + reg_off, 4);
+ if (!tgt->ctx_base)
+ return -ENOMEM;
+ return 0;
+}
+
+char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items)
+{
+ char *buf = (char *)tgt->rq + (tgt->rq_cons_idx * BNX2FC_RQ_BUF_SZ);
+
+ if (tgt->rq_cons_idx + num_items > BNX2FC_RQ_WQES_MAX)
+ return NULL;
+
+ tgt->rq_cons_idx += num_items;
+
+ if (tgt->rq_cons_idx >= BNX2FC_RQ_WQES_MAX)
+ tgt->rq_cons_idx -= BNX2FC_RQ_WQES_MAX;
+
+ return buf;
+}
+
+void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items)
+{
+ /* return the rq buffer */
+ u32 next_prod_idx = tgt->rq_prod_idx + num_items;
+ if ((next_prod_idx & 0x7fff) == BNX2FC_RQ_WQES_MAX) {
+ /* Wrap around RQ */
+ next_prod_idx += 0x8000 - BNX2FC_RQ_WQES_MAX;
+ }
+ tgt->rq_prod_idx = next_prod_idx;
+ tgt->conn_db->rq_prod = tgt->rq_prod_idx;
+}
+
+void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnp_req,
+ struct fcoe_task_ctx_entry *task,
+ struct bnx2fc_cmd *orig_io_req,
+ u32 offset)
+{
+ struct scsi_cmnd *sc_cmd = orig_io_req->sc_cmd;
+ struct bnx2fc_rport *tgt = seq_clnp_req->tgt;
+ struct bnx2fc_interface *interface = tgt->port->priv;
+ struct fcoe_bd_ctx *bd = orig_io_req->bd_tbl->bd_tbl;
+ struct fcoe_task_ctx_entry *orig_task;
+ struct fcoe_task_ctx_entry *task_page;
+ struct fcoe_ext_mul_sges_ctx *sgl;
+ u8 task_type = FCOE_TASK_TYPE_SEQUENCE_CLEANUP;
+ u8 orig_task_type;
+ u16 orig_xid = orig_io_req->xid;
+ u32 context_id = tgt->context_id;
+ u64 phys_addr = (u64)orig_io_req->bd_tbl->bd_tbl_dma;
+ u32 orig_offset = offset;
+ int bd_count;
+ int orig_task_idx, index;
+ int i;
+
+ memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
+
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
+ orig_task_type = FCOE_TASK_TYPE_WRITE;
+ else
+ orig_task_type = FCOE_TASK_TYPE_READ;
+
+ /* Tx flags */
+ task->txwr_rxrd.const_ctx.tx_flags =
+ FCOE_TASK_TX_STATE_SEQUENCE_CLEANUP <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
+ /* init flags */
+ task->txwr_rxrd.const_ctx.init_flags = task_type <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
+ task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
+ task->rxwr_txrd.const_ctx.init_flags = context_id <<
+ FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
+ task->rxwr_txrd.const_ctx.init_flags = context_id <<
+ FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
+
+ task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid;
+
+ task->txwr_rxrd.union_ctx.cleanup.ctx.rolled_tx_seq_cnt = 0;
+ task->txwr_rxrd.union_ctx.cleanup.ctx.rolled_tx_data_offset = offset;
+
+ bd_count = orig_io_req->bd_tbl->bd_valid;
+
+ /* obtain the appropriate bd entry from relative offset */
+ for (i = 0; i < bd_count; i++) {
+ if (offset < bd[i].buf_len)
+ break;
+ offset -= bd[i].buf_len;
+ }
+ phys_addr += (i * sizeof(struct fcoe_bd_ctx));
+
+ if (orig_task_type == FCOE_TASK_TYPE_WRITE) {
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
+ (u32)phys_addr;
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
+ (u32)((u64)phys_addr >> 32);
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size =
+ bd_count;
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_off =
+ offset; /* adjusted offset */
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_idx = i;
+ } else {
+ orig_task_idx = orig_xid / BNX2FC_TASKS_PER_PAGE;
+ index = orig_xid % BNX2FC_TASKS_PER_PAGE;
+
+ task_page = (struct fcoe_task_ctx_entry *)
+ interface->hba->task_ctx[orig_task_idx];
+ orig_task = &(task_page[index]);
+
+ /* Multiple SGEs were used for this IO */
+ sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
+ sgl->mul_sgl.cur_sge_addr.lo = (u32)phys_addr;
+ sgl->mul_sgl.cur_sge_addr.hi = (u32)((u64)phys_addr >> 32);
+ sgl->mul_sgl.sgl_size = bd_count;
+ sgl->mul_sgl.cur_sge_off = offset; /*adjusted offset */
+ sgl->mul_sgl.cur_sge_idx = i;
+
+ memset(&task->rxwr_only.rx_seq_ctx, 0,
+ sizeof(struct fcoe_rx_seq_ctx));
+ task->rxwr_only.rx_seq_ctx.low_exp_ro = orig_offset;
+ task->rxwr_only.rx_seq_ctx.high_exp_ro = orig_offset;
+ }
+}
+void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u16 orig_xid)
+{
+ u8 task_type = FCOE_TASK_TYPE_EXCHANGE_CLEANUP;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ u32 context_id = tgt->context_id;
+
+ memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
+
+ /* Tx Write Rx Read */
+ /* init flags */
+ task->txwr_rxrd.const_ctx.init_flags = task_type <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
+ task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
+ if (tgt->dev_type == TYPE_TAPE)
+ task->txwr_rxrd.const_ctx.init_flags |=
+ FCOE_TASK_DEV_TYPE_TAPE <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
+ else
+ task->txwr_rxrd.const_ctx.init_flags |=
+ FCOE_TASK_DEV_TYPE_DISK <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
+ task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid;
+
+ /* Tx flags */
+ task->txwr_rxrd.const_ctx.tx_flags =
+ FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
+
+ /* Rx Read Tx Write */
+ task->rxwr_txrd.const_ctx.init_flags = context_id <<
+ FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
+ task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
+ FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
+}
+
+void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task)
+{
+ struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct fc_frame_header *fc_hdr;
+ struct fcoe_ext_mul_sges_ctx *sgl;
+ u8 task_type = 0;
+ u64 *hdr;
+ u64 temp_hdr[3];
+ u32 context_id;
+
+
+ /* Obtain task_type */
+ if ((io_req->cmd_type == BNX2FC_TASK_MGMT_CMD) ||
+ (io_req->cmd_type == BNX2FC_ELS)) {
+ task_type = FCOE_TASK_TYPE_MIDPATH;
+ } else if (io_req->cmd_type == BNX2FC_ABTS) {
+ task_type = FCOE_TASK_TYPE_ABTS;
+ }
+
+ memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
+
+ /* Setup the task from io_req for easy reference */
+ io_req->task = task;
+
+ BNX2FC_IO_DBG(io_req, "Init MP task for cmd_type = %d task_type = %d\n",
+ io_req->cmd_type, task_type);
+
+ /* Tx only */
+ if ((task_type == FCOE_TASK_TYPE_MIDPATH) ||
+ (task_type == FCOE_TASK_TYPE_UNSOLICITED)) {
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
+ (u32)mp_req->mp_req_bd_dma;
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
+ (u32)((u64)mp_req->mp_req_bd_dma >> 32);
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size = 1;
+ }
+
+ /* Tx Write Rx Read */
+ /* init flags */
+ task->txwr_rxrd.const_ctx.init_flags = task_type <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
+ if (tgt->dev_type == TYPE_TAPE)
+ task->txwr_rxrd.const_ctx.init_flags |=
+ FCOE_TASK_DEV_TYPE_TAPE <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
+ else
+ task->txwr_rxrd.const_ctx.init_flags |=
+ FCOE_TASK_DEV_TYPE_DISK <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
+ task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
+
+ /* tx flags */
+ task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_INIT <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
+
+ /* Rx Write Tx Read */
+ task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len;
+
+ /* rx flags */
+ task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
+ FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
+
+ context_id = tgt->context_id;
+ task->rxwr_txrd.const_ctx.init_flags = context_id <<
+ FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
+
+ fc_hdr = &(mp_req->req_fc_hdr);
+ if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+ fc_hdr->fh_ox_id = cpu_to_be16(io_req->xid);
+ fc_hdr->fh_rx_id = htons(0xffff);
+ task->rxwr_txrd.var_ctx.rx_id = 0xffff;
+ } else if (task_type == FCOE_TASK_TYPE_UNSOLICITED) {
+ fc_hdr->fh_rx_id = cpu_to_be16(io_req->xid);
+ }
+
+ /* Fill FC Header into middle path buffer */
+ hdr = (u64 *) &task->txwr_rxrd.union_ctx.tx_frame.fc_hdr;
+ memcpy(temp_hdr, fc_hdr, sizeof(temp_hdr));
+ hdr[0] = cpu_to_be64(temp_hdr[0]);
+ hdr[1] = cpu_to_be64(temp_hdr[1]);
+ hdr[2] = cpu_to_be64(temp_hdr[2]);
+
+ /* Rx Only */
+ if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+ sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
+
+ sgl->mul_sgl.cur_sge_addr.lo = (u32)mp_req->mp_resp_bd_dma;
+ sgl->mul_sgl.cur_sge_addr.hi =
+ (u32)((u64)mp_req->mp_resp_bd_dma >> 32);
+ sgl->mul_sgl.sgl_size = 1;
+ }
+}
+
+void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task)
+{
+ u8 task_type;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct io_bdt *bd_tbl = io_req->bd_tbl;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct fcoe_cached_sge_ctx *cached_sge;
+ struct fcoe_ext_mul_sges_ctx *sgl;
+ int dev_type = tgt->dev_type;
+ u64 *fcp_cmnd;
+ u64 tmp_fcp_cmnd[4];
+ u32 context_id;
+ int cnt, i;
+ int bd_count;
+
+ memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
+
+ /* Setup the task from io_req for easy reference */
+ io_req->task = task;
+
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
+ task_type = FCOE_TASK_TYPE_WRITE;
+ else
+ task_type = FCOE_TASK_TYPE_READ;
+
+ /* Tx only */
+ bd_count = bd_tbl->bd_valid;
+ cached_sge = &task->rxwr_only.union_ctx.read_info.sgl_ctx.cached_sge;
+ if (task_type == FCOE_TASK_TYPE_WRITE) {
+ if ((dev_type == TYPE_DISK) && (bd_count == 1)) {
+ struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+ task->txwr_only.sgl_ctx.cached_sge.cur_buf_addr.lo =
+ cached_sge->cur_buf_addr.lo =
+ fcoe_bd_tbl->buf_addr_lo;
+ task->txwr_only.sgl_ctx.cached_sge.cur_buf_addr.hi =
+ cached_sge->cur_buf_addr.hi =
+ fcoe_bd_tbl->buf_addr_hi;
+ task->txwr_only.sgl_ctx.cached_sge.cur_buf_rem =
+ cached_sge->cur_buf_rem =
+ fcoe_bd_tbl->buf_len;
+
+ task->txwr_rxrd.const_ctx.init_flags |= 1 <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
+ } else {
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
+ (u32)bd_tbl->bd_tbl_dma;
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
+ (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
+ task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size =
+ bd_tbl->bd_valid;
+ }
+ }
+
+ /*Tx Write Rx Read */
+ /* Init state to NORMAL */
+ task->txwr_rxrd.const_ctx.init_flags |= task_type <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
+ if (dev_type == TYPE_TAPE) {
+ task->txwr_rxrd.const_ctx.init_flags |=
+ FCOE_TASK_DEV_TYPE_TAPE <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
+ io_req->rec_retry = 0;
+ io_req->rec_retry = 0;
+ } else
+ task->txwr_rxrd.const_ctx.init_flags |=
+ FCOE_TASK_DEV_TYPE_DISK <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
+ task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
+ /* tx flags */
+ task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_NORMAL <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
+
+ /* Set initial seq counter */
+ task->txwr_rxrd.union_ctx.tx_seq.ctx.seq_cnt = 1;
+
+ /* Fill FCP_CMND IU */
+ fcp_cmnd = (u64 *)
+ task->txwr_rxrd.union_ctx.fcp_cmd.opaque;
+ bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd);
+
+ /* swap fcp_cmnd */
+ cnt = sizeof(struct fcp_cmnd) / sizeof(u64);
+
+ for (i = 0; i < cnt; i++) {
+ *fcp_cmnd = cpu_to_be64(tmp_fcp_cmnd[i]);
+ fcp_cmnd++;
+ }
+
+ /* Rx Write Tx Read */
+ task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len;
+
+ context_id = tgt->context_id;
+ task->rxwr_txrd.const_ctx.init_flags = context_id <<
+ FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
+
+ /* rx flags */
+ /* Set state to "waiting for the first packet" */
+ task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
+ FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
+
+ task->rxwr_txrd.var_ctx.rx_id = 0xffff;
+
+ /* Rx Only */
+ if (task_type != FCOE_TASK_TYPE_READ)
+ return;
+
+ sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
+ bd_count = bd_tbl->bd_valid;
+
+ if (dev_type == TYPE_DISK) {
+ if (bd_count == 1) {
+
+ struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+ cached_sge->cur_buf_addr.lo = fcoe_bd_tbl->buf_addr_lo;
+ cached_sge->cur_buf_addr.hi = fcoe_bd_tbl->buf_addr_hi;
+ cached_sge->cur_buf_rem = fcoe_bd_tbl->buf_len;
+ task->txwr_rxrd.const_ctx.init_flags |= 1 <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
+ } else if (bd_count == 2) {
+ struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+ cached_sge->cur_buf_addr.lo = fcoe_bd_tbl->buf_addr_lo;
+ cached_sge->cur_buf_addr.hi = fcoe_bd_tbl->buf_addr_hi;
+ cached_sge->cur_buf_rem = fcoe_bd_tbl->buf_len;
+
+ fcoe_bd_tbl++;
+ cached_sge->second_buf_addr.lo =
+ fcoe_bd_tbl->buf_addr_lo;
+ cached_sge->second_buf_addr.hi =
+ fcoe_bd_tbl->buf_addr_hi;
+ cached_sge->second_buf_rem = fcoe_bd_tbl->buf_len;
+ task->txwr_rxrd.const_ctx.init_flags |= 1 <<
+ FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
+ } else {
+
+ sgl->mul_sgl.cur_sge_addr.lo = (u32)bd_tbl->bd_tbl_dma;
+ sgl->mul_sgl.cur_sge_addr.hi =
+ (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
+ sgl->mul_sgl.sgl_size = bd_count;
+ }
+ } else {
+ sgl->mul_sgl.cur_sge_addr.lo = (u32)bd_tbl->bd_tbl_dma;
+ sgl->mul_sgl.cur_sge_addr.hi =
+ (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
+ sgl->mul_sgl.sgl_size = bd_count;
+ }
+}
+
+/**
+ * bnx2fc_setup_task_ctx - allocate and map task context
+ *
+ * @hba: pointer to adapter structure
+ *
+ * allocate memory for task context, and associated BD table to be used
+ * by firmware
+ *
+ */
+int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba)
+{
+ int rc = 0;
+ struct regpair *task_ctx_bdt;
+ dma_addr_t addr;
+ int task_ctx_arr_sz;
+ int i;
+
+ /*
+ * Allocate task context bd table. A page size of bd table
+ * can map 256 buffers. Each buffer contains 32 task context
+ * entries. Hence the limit with one page is 8192 task context
+ * entries.
+ */
+ hba->task_ctx_bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
+ PAGE_SIZE,
+ &hba->task_ctx_bd_dma,
+ GFP_KERNEL);
+ if (!hba->task_ctx_bd_tbl) {
+ printk(KERN_ERR PFX "unable to allocate task context BDT\n");
+ rc = -1;
+ goto out;
+ }
+ memset(hba->task_ctx_bd_tbl, 0, PAGE_SIZE);
+
+ /*
+ * Allocate task_ctx which is an array of pointers pointing to
+ * a page containing 32 task contexts
+ */
+ task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE);
+ hba->task_ctx = kzalloc((task_ctx_arr_sz * sizeof(void *)),
+ GFP_KERNEL);
+ if (!hba->task_ctx) {
+ printk(KERN_ERR PFX "unable to allocate task context array\n");
+ rc = -1;
+ goto out1;
+ }
+
+ /*
+ * Allocate task_ctx_dma which is an array of dma addresses
+ */
+ hba->task_ctx_dma = kmalloc((task_ctx_arr_sz *
+ sizeof(dma_addr_t)), GFP_KERNEL);
+ if (!hba->task_ctx_dma) {
+ printk(KERN_ERR PFX "unable to alloc context mapping array\n");
+ rc = -1;
+ goto out2;
+ }
+
+ task_ctx_bdt = (struct regpair *)hba->task_ctx_bd_tbl;
+ for (i = 0; i < task_ctx_arr_sz; i++) {
+
+ hba->task_ctx[i] = dma_alloc_coherent(&hba->pcidev->dev,
+ PAGE_SIZE,
+ &hba->task_ctx_dma[i],
+ GFP_KERNEL);
+ if (!hba->task_ctx[i]) {
+ printk(KERN_ERR PFX "unable to alloc task context\n");
+ rc = -1;
+ goto out3;
+ }
+ memset(hba->task_ctx[i], 0, PAGE_SIZE);
+ addr = (u64)hba->task_ctx_dma[i];
+ task_ctx_bdt->hi = cpu_to_le32((u64)addr >> 32);
+ task_ctx_bdt->lo = cpu_to_le32((u32)addr);
+ task_ctx_bdt++;
+ }
+ return 0;
+
+out3:
+ for (i = 0; i < task_ctx_arr_sz; i++) {
+ if (hba->task_ctx[i]) {
+
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->task_ctx[i], hba->task_ctx_dma[i]);
+ hba->task_ctx[i] = NULL;
+ }
+ }
+
+ kfree(hba->task_ctx_dma);
+ hba->task_ctx_dma = NULL;
+out2:
+ kfree(hba->task_ctx);
+ hba->task_ctx = NULL;
+out1:
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->task_ctx_bd_tbl, hba->task_ctx_bd_dma);
+ hba->task_ctx_bd_tbl = NULL;
+out:
+ return rc;
+}
+
+void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba)
+{
+ int task_ctx_arr_sz;
+ int i;
+
+ if (hba->task_ctx_bd_tbl) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->task_ctx_bd_tbl,
+ hba->task_ctx_bd_dma);
+ hba->task_ctx_bd_tbl = NULL;
+ }
+
+ task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE);
+ if (hba->task_ctx) {
+ for (i = 0; i < task_ctx_arr_sz; i++) {
+ if (hba->task_ctx[i]) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->task_ctx[i],
+ hba->task_ctx_dma[i]);
+ hba->task_ctx[i] = NULL;
+ }
+ }
+ kfree(hba->task_ctx);
+ hba->task_ctx = NULL;
+ }
+
+ kfree(hba->task_ctx_dma);
+ hba->task_ctx_dma = NULL;
+}
+
+static void bnx2fc_free_hash_table(struct bnx2fc_hba *hba)
+{
+ int i;
+ int segment_count;
+ u32 *pbl;
+
+ if (hba->hash_tbl_segments) {
+
+ pbl = hba->hash_tbl_pbl;
+ if (pbl) {
+ segment_count = hba->hash_tbl_segment_count;
+ for (i = 0; i < segment_count; ++i) {
+ dma_addr_t dma_address;
+
+ dma_address = le32_to_cpu(*pbl);
+ ++pbl;
+ dma_address += ((u64)le32_to_cpu(*pbl)) << 32;
+ ++pbl;
+ dma_free_coherent(&hba->pcidev->dev,
+ BNX2FC_HASH_TBL_CHUNK_SIZE,
+ hba->hash_tbl_segments[i],
+ dma_address);
+ }
+ }
+
+ kfree(hba->hash_tbl_segments);
+ hba->hash_tbl_segments = NULL;
+ }
+
+ if (hba->hash_tbl_pbl) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->hash_tbl_pbl,
+ hba->hash_tbl_pbl_dma);
+ hba->hash_tbl_pbl = NULL;
+ }
+}
+
+static int bnx2fc_allocate_hash_table(struct bnx2fc_hba *hba)
+{
+ int i;
+ int hash_table_size;
+ int segment_count;
+ int segment_array_size;
+ int dma_segment_array_size;
+ dma_addr_t *dma_segment_array;
+ u32 *pbl;
+
+ hash_table_size = BNX2FC_NUM_MAX_SESS * BNX2FC_MAX_ROWS_IN_HASH_TBL *
+ sizeof(struct fcoe_hash_table_entry);
+
+ segment_count = hash_table_size + BNX2FC_HASH_TBL_CHUNK_SIZE - 1;
+ segment_count /= BNX2FC_HASH_TBL_CHUNK_SIZE;
+ hba->hash_tbl_segment_count = segment_count;
+
+ segment_array_size = segment_count * sizeof(*hba->hash_tbl_segments);
+ hba->hash_tbl_segments = kzalloc(segment_array_size, GFP_KERNEL);
+ if (!hba->hash_tbl_segments) {
+ printk(KERN_ERR PFX "hash table pointers alloc failed\n");
+ return -ENOMEM;
+ }
+ dma_segment_array_size = segment_count * sizeof(*dma_segment_array);
+ dma_segment_array = kzalloc(dma_segment_array_size, GFP_KERNEL);
+ if (!dma_segment_array) {
+ printk(KERN_ERR PFX "hash table pointers (dma) alloc failed\n");
+ goto cleanup_ht;
+ }
+
+ for (i = 0; i < segment_count; ++i) {
+ hba->hash_tbl_segments[i] =
+ dma_alloc_coherent(&hba->pcidev->dev,
+ BNX2FC_HASH_TBL_CHUNK_SIZE,
+ &dma_segment_array[i],
+ GFP_KERNEL);
+ if (!hba->hash_tbl_segments[i]) {
+ printk(KERN_ERR PFX "hash segment alloc failed\n");
+ goto cleanup_dma;
+ }
+ memset(hba->hash_tbl_segments[i], 0,
+ BNX2FC_HASH_TBL_CHUNK_SIZE);
+ }
+
+ hba->hash_tbl_pbl = dma_alloc_coherent(&hba->pcidev->dev,
+ PAGE_SIZE,
+ &hba->hash_tbl_pbl_dma,
+ GFP_KERNEL);
+ if (!hba->hash_tbl_pbl) {
+ printk(KERN_ERR PFX "hash table pbl alloc failed\n");
+ goto cleanup_dma;
+ }
+ memset(hba->hash_tbl_pbl, 0, PAGE_SIZE);
+
+ pbl = hba->hash_tbl_pbl;
+ for (i = 0; i < segment_count; ++i) {
+ u64 paddr = dma_segment_array[i];
+ *pbl = cpu_to_le32((u32) paddr);
+ ++pbl;
+ *pbl = cpu_to_le32((u32) (paddr >> 32));
+ ++pbl;
+ }
+ pbl = hba->hash_tbl_pbl;
+ i = 0;
+ while (*pbl && *(pbl + 1)) {
+ u32 lo;
+ u32 hi;
+ lo = *pbl;
+ ++pbl;
+ hi = *pbl;
+ ++pbl;
+ ++i;
+ }
+ kfree(dma_segment_array);
+ return 0;
+
+cleanup_dma:
+ for (i = 0; i < segment_count; ++i) {
+ if (hba->hash_tbl_segments[i])
+ dma_free_coherent(&hba->pcidev->dev,
+ BNX2FC_HASH_TBL_CHUNK_SIZE,
+ hba->hash_tbl_segments[i],
+ dma_segment_array[i]);
+ }
+
+ kfree(dma_segment_array);
+
+cleanup_ht:
+ kfree(hba->hash_tbl_segments);
+ hba->hash_tbl_segments = NULL;
+ return -ENOMEM;
+}
+
+/**
+ * bnx2fc_setup_fw_resc - Allocate and map hash table and dummy buffer
+ *
+ * @hba: Pointer to adapter structure
+ *
+ */
+int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba)
+{
+ u64 addr;
+ u32 mem_size;
+ int i;
+
+ if (bnx2fc_allocate_hash_table(hba))
+ return -ENOMEM;
+
+ mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
+ hba->t2_hash_tbl_ptr = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
+ &hba->t2_hash_tbl_ptr_dma,
+ GFP_KERNEL);
+ if (!hba->t2_hash_tbl_ptr) {
+ printk(KERN_ERR PFX "unable to allocate t2 hash table ptr\n");
+ bnx2fc_free_fw_resc(hba);
+ return -ENOMEM;
+ }
+ memset(hba->t2_hash_tbl_ptr, 0x00, mem_size);
+
+ mem_size = BNX2FC_NUM_MAX_SESS *
+ sizeof(struct fcoe_t2_hash_table_entry);
+ hba->t2_hash_tbl = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
+ &hba->t2_hash_tbl_dma,
+ GFP_KERNEL);
+ if (!hba->t2_hash_tbl) {
+ printk(KERN_ERR PFX "unable to allocate t2 hash table\n");
+ bnx2fc_free_fw_resc(hba);
+ return -ENOMEM;
+ }
+ memset(hba->t2_hash_tbl, 0x00, mem_size);
+ for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
+ addr = (unsigned long) hba->t2_hash_tbl_dma +
+ ((i+1) * sizeof(struct fcoe_t2_hash_table_entry));
+ hba->t2_hash_tbl[i].next.lo = addr & 0xffffffff;
+ hba->t2_hash_tbl[i].next.hi = addr >> 32;
+ }
+
+ hba->dummy_buffer = dma_alloc_coherent(&hba->pcidev->dev,
+ PAGE_SIZE, &hba->dummy_buf_dma,
+ GFP_KERNEL);
+ if (!hba->dummy_buffer) {
+ printk(KERN_ERR PFX "unable to alloc MP Dummy Buffer\n");
+ bnx2fc_free_fw_resc(hba);
+ return -ENOMEM;
+ }
+
+ hba->stats_buffer = dma_alloc_coherent(&hba->pcidev->dev,
+ PAGE_SIZE,
+ &hba->stats_buf_dma,
+ GFP_KERNEL);
+ if (!hba->stats_buffer) {
+ printk(KERN_ERR PFX "unable to alloc Stats Buffer\n");
+ bnx2fc_free_fw_resc(hba);
+ return -ENOMEM;
+ }
+ memset(hba->stats_buffer, 0x00, PAGE_SIZE);
+
+ return 0;
+}
+
+void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba)
+{
+ u32 mem_size;
+
+ if (hba->stats_buffer) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->stats_buffer, hba->stats_buf_dma);
+ hba->stats_buffer = NULL;
+ }
+
+ if (hba->dummy_buffer) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->dummy_buffer, hba->dummy_buf_dma);
+ hba->dummy_buffer = NULL;
+ }
+
+ if (hba->t2_hash_tbl_ptr) {
+ mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
+ dma_free_coherent(&hba->pcidev->dev, mem_size,
+ hba->t2_hash_tbl_ptr,
+ hba->t2_hash_tbl_ptr_dma);
+ hba->t2_hash_tbl_ptr = NULL;
+ }
+
+ if (hba->t2_hash_tbl) {
+ mem_size = BNX2FC_NUM_MAX_SESS *
+ sizeof(struct fcoe_t2_hash_table_entry);
+ dma_free_coherent(&hba->pcidev->dev, mem_size,
+ hba->t2_hash_tbl, hba->t2_hash_tbl_dma);
+ hba->t2_hash_tbl = NULL;
+ }
+ bnx2fc_free_hash_table(hba);
+}
diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
new file mode 100644
index 00000000000..7bc47fc7c68
--- /dev/null
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -0,0 +1,2084 @@
+/* bnx2fc_io.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * IO manager and SCSI IO processing.
+ *
+ * Copyright (c) 2008 - 2013 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+#define RESERVE_FREE_LIST_INDEX num_possible_cpus()
+
+static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len,
+ int bd_index);
+static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req);
+static int bnx2fc_build_bd_list_from_sg(struct bnx2fc_cmd *io_req);
+static void bnx2fc_unmap_sg_list(struct bnx2fc_cmd *io_req);
+static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req);
+static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req,
+ struct fcoe_fcp_rsp_payload *fcp_rsp,
+ u8 num_rq);
+
+void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
+ unsigned int timer_msec)
+{
+ struct bnx2fc_interface *interface = io_req->port->priv;
+
+ if (queue_delayed_work(interface->timer_work_queue,
+ &io_req->timeout_work,
+ msecs_to_jiffies(timer_msec)))
+ kref_get(&io_req->refcount);
+}
+
+static void bnx2fc_cmd_timeout(struct work_struct *work)
+{
+ struct bnx2fc_cmd *io_req = container_of(work, struct bnx2fc_cmd,
+ timeout_work.work);
+ struct fc_lport *lport;
+ struct fc_rport_priv *rdata;
+ u8 cmd_type = io_req->cmd_type;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ int logo_issued;
+ int rc;
+
+ BNX2FC_IO_DBG(io_req, "cmd_timeout, cmd_type = %d,"
+ "req_flags = %lx\n", cmd_type, io_req->req_flags);
+
+ spin_lock_bh(&tgt->tgt_lock);
+ if (test_and_clear_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags)) {
+ clear_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags);
+ /*
+ * ideally we should hold the io_req until RRQ complets,
+ * and release io_req from timeout hold.
+ */
+ spin_unlock_bh(&tgt->tgt_lock);
+ bnx2fc_send_rrq(io_req);
+ return;
+ }
+ if (test_and_clear_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "IO ready for reuse now\n");
+ goto done;
+ }
+
+ switch (cmd_type) {
+ case BNX2FC_SCSI_CMD:
+ if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+ &io_req->req_flags)) {
+ /* Handle eh_abort timeout */
+ BNX2FC_IO_DBG(io_req, "eh_abort timed out\n");
+ complete(&io_req->tm_done);
+ } else if (test_bit(BNX2FC_FLAG_ISSUE_ABTS,
+ &io_req->req_flags)) {
+ /* Handle internally generated ABTS timeout */
+ BNX2FC_IO_DBG(io_req, "ABTS timed out refcnt = %d\n",
+ io_req->refcount.refcount.counter);
+ if (!(test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+ &io_req->req_flags))) {
+
+ lport = io_req->port->lport;
+ rdata = io_req->tgt->rdata;
+ logo_issued = test_and_set_bit(
+ BNX2FC_FLAG_EXPL_LOGO,
+ &tgt->flags);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ /* Explicitly logo the target */
+ if (!logo_issued) {
+ BNX2FC_IO_DBG(io_req, "Explicit "
+ "logo - tgt flags = 0x%lx\n",
+ tgt->flags);
+
+ mutex_lock(&lport->disc.disc_mutex);
+ lport->tt.rport_logoff(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ }
+ return;
+ }
+ } else {
+ /* Hanlde IO timeout */
+ BNX2FC_IO_DBG(io_req, "IO timed out. issue ABTS\n");
+ if (test_and_set_bit(BNX2FC_FLAG_IO_COMPL,
+ &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "IO completed before "
+ " timer expiry\n");
+ goto done;
+ }
+
+ if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+ &io_req->req_flags)) {
+ rc = bnx2fc_initiate_abts(io_req);
+ if (rc == SUCCESS)
+ goto done;
+ /*
+ * Explicitly logo the target if
+ * abts initiation fails
+ */
+ lport = io_req->port->lport;
+ rdata = io_req->tgt->rdata;
+ logo_issued = test_and_set_bit(
+ BNX2FC_FLAG_EXPL_LOGO,
+ &tgt->flags);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ if (!logo_issued) {
+ BNX2FC_IO_DBG(io_req, "Explicit "
+ "logo - tgt flags = 0x%lx\n",
+ tgt->flags);
+
+
+ mutex_lock(&lport->disc.disc_mutex);
+ lport->tt.rport_logoff(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ }
+ return;
+ } else {
+ BNX2FC_IO_DBG(io_req, "IO already in "
+ "ABTS processing\n");
+ }
+ }
+ break;
+ case BNX2FC_ELS:
+
+ if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "ABTS for ELS timed out\n");
+
+ if (!test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+ &io_req->req_flags)) {
+ lport = io_req->port->lport;
+ rdata = io_req->tgt->rdata;
+ logo_issued = test_and_set_bit(
+ BNX2FC_FLAG_EXPL_LOGO,
+ &tgt->flags);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ /* Explicitly logo the target */
+ if (!logo_issued) {
+ BNX2FC_IO_DBG(io_req, "Explicitly logo"
+ "(els)\n");
+ mutex_lock(&lport->disc.disc_mutex);
+ lport->tt.rport_logoff(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ }
+ return;
+ }
+ } else {
+ /*
+ * Handle ELS timeout.
+ * tgt_lock is used to sync compl path and timeout
+ * path. If els compl path is processing this IO, we
+ * have nothing to do here, just release the timer hold
+ */
+ BNX2FC_IO_DBG(io_req, "ELS timed out\n");
+ if (test_and_set_bit(BNX2FC_FLAG_ELS_DONE,
+ &io_req->req_flags))
+ goto done;
+
+ /* Indicate the cb_func that this ELS is timed out */
+ set_bit(BNX2FC_FLAG_ELS_TIMEOUT, &io_req->req_flags);
+
+ if ((io_req->cb_func) && (io_req->cb_arg)) {
+ io_req->cb_func(io_req->cb_arg);
+ io_req->cb_arg = NULL;
+ }
+ }
+ break;
+ default:
+ printk(KERN_ERR PFX "cmd_timeout: invalid cmd_type %d\n",
+ cmd_type);
+ break;
+ }
+
+done:
+ /* release the cmd that was held when timer was set */
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+}
+
+static void bnx2fc_scsi_done(struct bnx2fc_cmd *io_req, int err_code)
+{
+ /* Called with host lock held */
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+
+ /*
+ * active_cmd_queue may have other command types as well,
+ * and during flush operation, we want to error back only
+ * scsi commands.
+ */
+ if (io_req->cmd_type != BNX2FC_SCSI_CMD)
+ return;
+
+ BNX2FC_IO_DBG(io_req, "scsi_done. err_code = 0x%x\n", err_code);
+ if (test_bit(BNX2FC_FLAG_CMD_LOST, &io_req->req_flags)) {
+ /* Do not call scsi done for this IO */
+ return;
+ }
+
+ bnx2fc_unmap_sg_list(io_req);
+ io_req->sc_cmd = NULL;
+ if (!sc_cmd) {
+ printk(KERN_ERR PFX "scsi_done - sc_cmd NULL. "
+ "IO(0x%x) already cleaned up\n",
+ io_req->xid);
+ return;
+ }
+ sc_cmd->result = err_code << 16;
+
+ BNX2FC_IO_DBG(io_req, "sc=%p, result=0x%x, retries=%d, allowed=%d\n",
+ sc_cmd, host_byte(sc_cmd->result), sc_cmd->retries,
+ sc_cmd->allowed);
+ scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+}
+
+struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba)
+{
+ struct bnx2fc_cmd_mgr *cmgr;
+ struct io_bdt *bdt_info;
+ struct bnx2fc_cmd *io_req;
+ size_t len;
+ u32 mem_size;
+ u16 xid;
+ int i;
+ int num_ios, num_pri_ios;
+ size_t bd_tbl_sz;
+ int arr_sz = num_possible_cpus() + 1;
+ u16 min_xid = BNX2FC_MIN_XID;
+ u16 max_xid = hba->max_xid;
+
+ if (max_xid <= min_xid || max_xid == FC_XID_UNKNOWN) {
+ printk(KERN_ERR PFX "cmd_mgr_alloc: Invalid min_xid 0x%x \
+ and max_xid 0x%x\n", min_xid, max_xid);
+ return NULL;
+ }
+ BNX2FC_MISC_DBG("min xid 0x%x, max xid 0x%x\n", min_xid, max_xid);
+
+ num_ios = max_xid - min_xid + 1;
+ len = (num_ios * (sizeof(struct bnx2fc_cmd *)));
+ len += sizeof(struct bnx2fc_cmd_mgr);
+
+ cmgr = kzalloc(len, GFP_KERNEL);
+ if (!cmgr) {
+ printk(KERN_ERR PFX "failed to alloc cmgr\n");
+ return NULL;
+ }
+
+ cmgr->free_list = kzalloc(sizeof(*cmgr->free_list) *
+ arr_sz, GFP_KERNEL);
+ if (!cmgr->free_list) {
+ printk(KERN_ERR PFX "failed to alloc free_list\n");
+ goto mem_err;
+ }
+
+ cmgr->free_list_lock = kzalloc(sizeof(*cmgr->free_list_lock) *
+ arr_sz, GFP_KERNEL);
+ if (!cmgr->free_list_lock) {
+ printk(KERN_ERR PFX "failed to alloc free_list_lock\n");
+ kfree(cmgr->free_list);
+ cmgr->free_list = NULL;
+ goto mem_err;
+ }
+
+ cmgr->hba = hba;
+ cmgr->cmds = (struct bnx2fc_cmd **)(cmgr + 1);
+
+ for (i = 0; i < arr_sz; i++) {
+ INIT_LIST_HEAD(&cmgr->free_list[i]);
+ spin_lock_init(&cmgr->free_list_lock[i]);
+ }
+
+ /*
+ * Pre-allocated pool of bnx2fc_cmds.
+ * Last entry in the free list array is the free list
+ * of slow path requests.
+ */
+ xid = BNX2FC_MIN_XID;
+ num_pri_ios = num_ios - hba->elstm_xids;
+ for (i = 0; i < num_ios; i++) {
+ io_req = kzalloc(sizeof(*io_req), GFP_KERNEL);
+
+ if (!io_req) {
+ printk(KERN_ERR PFX "failed to alloc io_req\n");
+ goto mem_err;
+ }
+
+ INIT_LIST_HEAD(&io_req->link);
+ INIT_DELAYED_WORK(&io_req->timeout_work, bnx2fc_cmd_timeout);
+
+ io_req->xid = xid++;
+ if (i < num_pri_ios)
+ list_add_tail(&io_req->link,
+ &cmgr->free_list[io_req->xid %
+ num_possible_cpus()]);
+ else
+ list_add_tail(&io_req->link,
+ &cmgr->free_list[num_possible_cpus()]);
+ io_req++;
+ }
+
+ /* Allocate pool of io_bdts - one for each bnx2fc_cmd */
+ mem_size = num_ios * sizeof(struct io_bdt *);
+ cmgr->io_bdt_pool = kmalloc(mem_size, GFP_KERNEL);
+ if (!cmgr->io_bdt_pool) {
+ printk(KERN_ERR PFX "failed to alloc io_bdt_pool\n");
+ goto mem_err;
+ }
+
+ mem_size = sizeof(struct io_bdt);
+ for (i = 0; i < num_ios; i++) {
+ cmgr->io_bdt_pool[i] = kmalloc(mem_size, GFP_KERNEL);
+ if (!cmgr->io_bdt_pool[i]) {
+ printk(KERN_ERR PFX "failed to alloc "
+ "io_bdt_pool[%d]\n", i);
+ goto mem_err;
+ }
+ }
+
+ /* Allocate an map fcoe_bdt_ctx structures */
+ bd_tbl_sz = BNX2FC_MAX_BDS_PER_CMD * sizeof(struct fcoe_bd_ctx);
+ for (i = 0; i < num_ios; i++) {
+ bdt_info = cmgr->io_bdt_pool[i];
+ bdt_info->bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
+ bd_tbl_sz,
+ &bdt_info->bd_tbl_dma,
+ GFP_KERNEL);
+ if (!bdt_info->bd_tbl) {
+ printk(KERN_ERR PFX "failed to alloc "
+ "bdt_tbl[%d]\n", i);
+ goto mem_err;
+ }
+ }
+
+ return cmgr;
+
+mem_err:
+ bnx2fc_cmd_mgr_free(cmgr);
+ return NULL;
+}
+
+void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr)
+{
+ struct io_bdt *bdt_info;
+ struct bnx2fc_hba *hba = cmgr->hba;
+ size_t bd_tbl_sz;
+ u16 min_xid = BNX2FC_MIN_XID;
+ u16 max_xid = hba->max_xid;
+ int num_ios;
+ int i;
+
+ num_ios = max_xid - min_xid + 1;
+
+ /* Free fcoe_bdt_ctx structures */
+ if (!cmgr->io_bdt_pool)
+ goto free_cmd_pool;
+
+ bd_tbl_sz = BNX2FC_MAX_BDS_PER_CMD * sizeof(struct fcoe_bd_ctx);
+ for (i = 0; i < num_ios; i++) {
+ bdt_info = cmgr->io_bdt_pool[i];
+ if (bdt_info->bd_tbl) {
+ dma_free_coherent(&hba->pcidev->dev, bd_tbl_sz,
+ bdt_info->bd_tbl,
+ bdt_info->bd_tbl_dma);
+ bdt_info->bd_tbl = NULL;
+ }
+ }
+
+ /* Destroy io_bdt pool */
+ for (i = 0; i < num_ios; i++) {
+ kfree(cmgr->io_bdt_pool[i]);
+ cmgr->io_bdt_pool[i] = NULL;
+ }
+
+ kfree(cmgr->io_bdt_pool);
+ cmgr->io_bdt_pool = NULL;
+
+free_cmd_pool:
+ kfree(cmgr->free_list_lock);
+
+ /* Destroy cmd pool */
+ if (!cmgr->free_list)
+ goto free_cmgr;
+
+ for (i = 0; i < num_possible_cpus() + 1; i++) {
+ struct bnx2fc_cmd *tmp, *io_req;
+
+ list_for_each_entry_safe(io_req, tmp,
+ &cmgr->free_list[i], link) {
+ list_del(&io_req->link);
+ kfree(io_req);
+ }
+ }
+ kfree(cmgr->free_list);
+free_cmgr:
+ /* Free command manager itself */
+ kfree(cmgr);
+}
+
+struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type)
+{
+ struct fcoe_port *port = tgt->port;
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_cmd_mgr *cmd_mgr = interface->hba->cmd_mgr;
+ struct bnx2fc_cmd *io_req;
+ struct list_head *listp;
+ struct io_bdt *bd_tbl;
+ int index = RESERVE_FREE_LIST_INDEX;
+ u32 free_sqes;
+ u32 max_sqes;
+ u16 xid;
+
+ max_sqes = tgt->max_sqes;
+ switch (type) {
+ case BNX2FC_TASK_MGMT_CMD:
+ max_sqes = BNX2FC_TM_MAX_SQES;
+ break;
+ case BNX2FC_ELS:
+ max_sqes = BNX2FC_ELS_MAX_SQES;
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * NOTE: Free list insertions and deletions are protected with
+ * cmgr lock
+ */
+ spin_lock_bh(&cmd_mgr->free_list_lock[index]);
+ free_sqes = atomic_read(&tgt->free_sqes);
+ if ((list_empty(&(cmd_mgr->free_list[index]))) ||
+ (tgt->num_active_ios.counter >= max_sqes) ||
+ (free_sqes + max_sqes <= BNX2FC_SQ_WQES_MAX)) {
+ BNX2FC_TGT_DBG(tgt, "No free els_tm cmds available "
+ "ios(%d):sqes(%d)\n",
+ tgt->num_active_ios.counter, tgt->max_sqes);
+ if (list_empty(&(cmd_mgr->free_list[index])))
+ printk(KERN_ERR PFX "elstm_alloc: list_empty\n");
+ spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
+ return NULL;
+ }
+
+ listp = (struct list_head *)
+ cmd_mgr->free_list[index].next;
+ list_del_init(listp);
+ io_req = (struct bnx2fc_cmd *) listp;
+ xid = io_req->xid;
+ cmd_mgr->cmds[xid] = io_req;
+ atomic_inc(&tgt->num_active_ios);
+ atomic_dec(&tgt->free_sqes);
+ spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
+
+ INIT_LIST_HEAD(&io_req->link);
+
+ io_req->port = port;
+ io_req->cmd_mgr = cmd_mgr;
+ io_req->req_flags = 0;
+ io_req->cmd_type = type;
+
+ /* Bind io_bdt for this io_req */
+ /* Have a static link between io_req and io_bdt_pool */
+ bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
+ bd_tbl->io_req = io_req;
+
+ /* Hold the io_req against deletion */
+ kref_init(&io_req->refcount);
+ return io_req;
+}
+
+struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt)
+{
+ struct fcoe_port *port = tgt->port;
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_cmd_mgr *cmd_mgr = interface->hba->cmd_mgr;
+ struct bnx2fc_cmd *io_req;
+ struct list_head *listp;
+ struct io_bdt *bd_tbl;
+ u32 free_sqes;
+ u32 max_sqes;
+ u16 xid;
+ int index = get_cpu();
+
+ max_sqes = BNX2FC_SCSI_MAX_SQES;
+ /*
+ * NOTE: Free list insertions and deletions are protected with
+ * cmgr lock
+ */
+ spin_lock_bh(&cmd_mgr->free_list_lock[index]);
+ free_sqes = atomic_read(&tgt->free_sqes);
+ if ((list_empty(&cmd_mgr->free_list[index])) ||
+ (tgt->num_active_ios.counter >= max_sqes) ||
+ (free_sqes + max_sqes <= BNX2FC_SQ_WQES_MAX)) {
+ spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
+ put_cpu();
+ return NULL;
+ }
+
+ listp = (struct list_head *)
+ cmd_mgr->free_list[index].next;
+ list_del_init(listp);
+ io_req = (struct bnx2fc_cmd *) listp;
+ xid = io_req->xid;
+ cmd_mgr->cmds[xid] = io_req;
+ atomic_inc(&tgt->num_active_ios);
+ atomic_dec(&tgt->free_sqes);
+ spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
+ put_cpu();
+
+ INIT_LIST_HEAD(&io_req->link);
+
+ io_req->port = port;
+ io_req->cmd_mgr = cmd_mgr;
+ io_req->req_flags = 0;
+
+ /* Bind io_bdt for this io_req */
+ /* Have a static link between io_req and io_bdt_pool */
+ bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
+ bd_tbl->io_req = io_req;
+
+ /* Hold the io_req against deletion */
+ kref_init(&io_req->refcount);
+ return io_req;
+}
+
+void bnx2fc_cmd_release(struct kref *ref)
+{
+ struct bnx2fc_cmd *io_req = container_of(ref,
+ struct bnx2fc_cmd, refcount);
+ struct bnx2fc_cmd_mgr *cmd_mgr = io_req->cmd_mgr;
+ int index;
+
+ if (io_req->cmd_type == BNX2FC_SCSI_CMD)
+ index = io_req->xid % num_possible_cpus();
+ else
+ index = RESERVE_FREE_LIST_INDEX;
+
+
+ spin_lock_bh(&cmd_mgr->free_list_lock[index]);
+ if (io_req->cmd_type != BNX2FC_SCSI_CMD)
+ bnx2fc_free_mp_resc(io_req);
+ cmd_mgr->cmds[io_req->xid] = NULL;
+ /* Delete IO from retire queue */
+ list_del_init(&io_req->link);
+ /* Add it to the free list */
+ list_add(&io_req->link,
+ &cmd_mgr->free_list[index]);
+ atomic_dec(&io_req->tgt->num_active_ios);
+ spin_unlock_bh(&cmd_mgr->free_list_lock[index]);
+
+}
+
+static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req)
+{
+ struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
+ struct bnx2fc_interface *interface = io_req->port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ size_t sz = sizeof(struct fcoe_bd_ctx);
+
+ /* clear tm flags */
+ mp_req->tm_flags = 0;
+ if (mp_req->mp_req_bd) {
+ dma_free_coherent(&hba->pcidev->dev, sz,
+ mp_req->mp_req_bd,
+ mp_req->mp_req_bd_dma);
+ mp_req->mp_req_bd = NULL;
+ }
+ if (mp_req->mp_resp_bd) {
+ dma_free_coherent(&hba->pcidev->dev, sz,
+ mp_req->mp_resp_bd,
+ mp_req->mp_resp_bd_dma);
+ mp_req->mp_resp_bd = NULL;
+ }
+ if (mp_req->req_buf) {
+ dma_free_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
+ mp_req->req_buf,
+ mp_req->req_buf_dma);
+ mp_req->req_buf = NULL;
+ }
+ if (mp_req->resp_buf) {
+ dma_free_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
+ mp_req->resp_buf,
+ mp_req->resp_buf_dma);
+ mp_req->resp_buf = NULL;
+ }
+}
+
+int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req)
+{
+ struct bnx2fc_mp_req *mp_req;
+ struct fcoe_bd_ctx *mp_req_bd;
+ struct fcoe_bd_ctx *mp_resp_bd;
+ struct bnx2fc_interface *interface = io_req->port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ dma_addr_t addr;
+ size_t sz;
+
+ mp_req = (struct bnx2fc_mp_req *)&(io_req->mp_req);
+ memset(mp_req, 0, sizeof(struct bnx2fc_mp_req));
+
+ mp_req->req_len = sizeof(struct fcp_cmnd);
+ io_req->data_xfer_len = mp_req->req_len;
+ mp_req->req_buf = dma_alloc_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
+ &mp_req->req_buf_dma,
+ GFP_ATOMIC);
+ if (!mp_req->req_buf) {
+ printk(KERN_ERR PFX "unable to alloc MP req buffer\n");
+ bnx2fc_free_mp_resc(io_req);
+ return FAILED;
+ }
+
+ mp_req->resp_buf = dma_alloc_coherent(&hba->pcidev->dev, CNIC_PAGE_SIZE,
+ &mp_req->resp_buf_dma,
+ GFP_ATOMIC);
+ if (!mp_req->resp_buf) {
+ printk(KERN_ERR PFX "unable to alloc TM resp buffer\n");
+ bnx2fc_free_mp_resc(io_req);
+ return FAILED;
+ }
+ memset(mp_req->req_buf, 0, CNIC_PAGE_SIZE);
+ memset(mp_req->resp_buf, 0, CNIC_PAGE_SIZE);
+
+ /* Allocate and map mp_req_bd and mp_resp_bd */
+ sz = sizeof(struct fcoe_bd_ctx);
+ mp_req->mp_req_bd = dma_alloc_coherent(&hba->pcidev->dev, sz,
+ &mp_req->mp_req_bd_dma,
+ GFP_ATOMIC);
+ if (!mp_req->mp_req_bd) {
+ printk(KERN_ERR PFX "unable to alloc MP req bd\n");
+ bnx2fc_free_mp_resc(io_req);
+ return FAILED;
+ }
+ mp_req->mp_resp_bd = dma_alloc_coherent(&hba->pcidev->dev, sz,
+ &mp_req->mp_resp_bd_dma,
+ GFP_ATOMIC);
+ if (!mp_req->mp_resp_bd) {
+ printk(KERN_ERR PFX "unable to alloc MP resp bd\n");
+ bnx2fc_free_mp_resc(io_req);
+ return FAILED;
+ }
+ /* Fill bd table */
+ addr = mp_req->req_buf_dma;
+ mp_req_bd = mp_req->mp_req_bd;
+ mp_req_bd->buf_addr_lo = (u32)addr & 0xffffffff;
+ mp_req_bd->buf_addr_hi = (u32)((u64)addr >> 32);
+ mp_req_bd->buf_len = CNIC_PAGE_SIZE;
+ mp_req_bd->flags = 0;
+
+ /*
+ * MP buffer is either a task mgmt command or an ELS.
+ * So the assumption is that it consumes a single bd
+ * entry in the bd table
+ */
+ mp_resp_bd = mp_req->mp_resp_bd;
+ addr = mp_req->resp_buf_dma;
+ mp_resp_bd->buf_addr_lo = (u32)addr & 0xffffffff;
+ mp_resp_bd->buf_addr_hi = (u32)((u64)addr >> 32);
+ mp_resp_bd->buf_len = CNIC_PAGE_SIZE;
+ mp_resp_bd->flags = 0;
+
+ return SUCCESS;
+}
+
+static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags)
+{
+ struct fc_lport *lport;
+ struct fc_rport *rport;
+ struct fc_rport_libfc_priv *rp;
+ struct fcoe_port *port;
+ struct bnx2fc_interface *interface;
+ struct bnx2fc_rport *tgt;
+ struct bnx2fc_cmd *io_req;
+ struct bnx2fc_mp_req *tm_req;
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ struct Scsi_Host *host = sc_cmd->device->host;
+ struct fc_frame_header *fc_hdr;
+ struct fcp_cmnd *fcp_cmnd;
+ int task_idx, index;
+ int rc = SUCCESS;
+ u16 xid;
+ u32 sid, did;
+ unsigned long start = jiffies;
+
+ lport = shost_priv(host);
+ rport = starget_to_rport(scsi_target(sc_cmd->device));
+ port = lport_priv(lport);
+ interface = port->priv;
+
+ if (rport == NULL) {
+ printk(KERN_ERR PFX "device_reset: rport is NULL\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+ rp = rport->dd_data;
+
+ rc = fc_block_scsi_eh(sc_cmd);
+ if (rc)
+ return rc;
+
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ printk(KERN_ERR PFX "device_reset: link is not ready\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+ /* rport and tgt are allocated together, so tgt should be non-NULL */
+ tgt = (struct bnx2fc_rport *)&rp[1];
+
+ if (!(test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
+ printk(KERN_ERR PFX "device_reset: tgt not offloaded\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+retry_tmf:
+ io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_TASK_MGMT_CMD);
+ if (!io_req) {
+ if (time_after(jiffies, start + HZ)) {
+ printk(KERN_ERR PFX "tmf: Failed TMF");
+ rc = FAILED;
+ goto tmf_err;
+ }
+ msleep(20);
+ goto retry_tmf;
+ }
+ /* Initialize rest of io_req fields */
+ io_req->sc_cmd = sc_cmd;
+ io_req->port = port;
+ io_req->tgt = tgt;
+
+ tm_req = (struct bnx2fc_mp_req *)&(io_req->mp_req);
+
+ rc = bnx2fc_init_mp_req(io_req);
+ if (rc == FAILED) {
+ printk(KERN_ERR PFX "Task mgmt MP request init failed\n");
+ spin_lock_bh(&tgt->tgt_lock);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ goto tmf_err;
+ }
+
+ /* Set TM flags */
+ io_req->io_req_flags = 0;
+ tm_req->tm_flags = tm_flags;
+
+ /* Fill FCP_CMND */
+ bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)tm_req->req_buf);
+ fcp_cmnd = (struct fcp_cmnd *)tm_req->req_buf;
+ memset(fcp_cmnd->fc_cdb, 0, sc_cmd->cmd_len);
+ fcp_cmnd->fc_dl = 0;
+
+ /* Fill FC header */
+ fc_hdr = &(tm_req->req_fc_hdr);
+ sid = tgt->sid;
+ did = rport->port_id;
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_DD_UNSOL_CMD, did, sid,
+ FC_TYPE_FCP, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+ /* Obtain exchange id */
+ xid = io_req->xid;
+
+ BNX2FC_TGT_DBG(tgt, "Initiate TMF - xid = 0x%x\n", xid);
+ task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *)
+ interface->hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ bnx2fc_init_mp_task(io_req, task);
+
+ sc_cmd->SCp.ptr = (char *)io_req;
+
+ /* Obtain free SQ entry */
+ spin_lock_bh(&tgt->tgt_lock);
+ bnx2fc_add_2_sq(tgt, xid);
+
+ /* Enqueue the io_req to active_tm_queue */
+ io_req->on_tmf_queue = 1;
+ list_add_tail(&io_req->link, &tgt->active_tm_queue);
+
+ init_completion(&io_req->tm_done);
+ io_req->wait_for_comp = 1;
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ rc = wait_for_completion_timeout(&io_req->tm_done,
+ BNX2FC_TM_TIMEOUT * HZ);
+ spin_lock_bh(&tgt->tgt_lock);
+
+ io_req->wait_for_comp = 0;
+ if (!(test_bit(BNX2FC_FLAG_TM_COMPL, &io_req->req_flags))) {
+ set_bit(BNX2FC_FLAG_TM_TIMEOUT, &io_req->req_flags);
+ if (io_req->on_tmf_queue) {
+ list_del_init(&io_req->link);
+ io_req->on_tmf_queue = 0;
+ }
+ io_req->wait_for_comp = 1;
+ bnx2fc_initiate_cleanup(io_req);
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = wait_for_completion_timeout(&io_req->tm_done,
+ BNX2FC_FW_TIMEOUT);
+ spin_lock_bh(&tgt->tgt_lock);
+ io_req->wait_for_comp = 0;
+ if (!rc)
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ }
+
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ if (!rc) {
+ BNX2FC_TGT_DBG(tgt, "task mgmt command failed...\n");
+ rc = FAILED;
+ } else {
+ BNX2FC_TGT_DBG(tgt, "task mgmt command success...\n");
+ rc = SUCCESS;
+ }
+tmf_err:
+ return rc;
+}
+
+int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req)
+{
+ struct fc_lport *lport;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct fc_rport *rport = tgt->rport;
+ struct fc_rport_priv *rdata = tgt->rdata;
+ struct bnx2fc_interface *interface;
+ struct fcoe_port *port;
+ struct bnx2fc_cmd *abts_io_req;
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ struct fc_frame_header *fc_hdr;
+ struct bnx2fc_mp_req *abts_req;
+ int task_idx, index;
+ u32 sid, did;
+ u16 xid;
+ int rc = SUCCESS;
+ u32 r_a_tov = rdata->r_a_tov;
+
+ /* called with tgt_lock held */
+ BNX2FC_IO_DBG(io_req, "Entered bnx2fc_initiate_abts\n");
+
+ port = io_req->port;
+ interface = port->priv;
+ lport = port->lport;
+
+ if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+ printk(KERN_ERR PFX "initiate_abts: tgt not offloaded\n");
+ rc = FAILED;
+ goto abts_err;
+ }
+
+ if (rport == NULL) {
+ printk(KERN_ERR PFX "initiate_abts: rport is NULL\n");
+ rc = FAILED;
+ goto abts_err;
+ }
+
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ printk(KERN_ERR PFX "initiate_abts: link is not ready\n");
+ rc = FAILED;
+ goto abts_err;
+ }
+
+ abts_io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_ABTS);
+ if (!abts_io_req) {
+ printk(KERN_ERR PFX "abts: couldnt allocate cmd\n");
+ rc = FAILED;
+ goto abts_err;
+ }
+
+ /* Initialize rest of io_req fields */
+ abts_io_req->sc_cmd = NULL;
+ abts_io_req->port = port;
+ abts_io_req->tgt = tgt;
+ abts_io_req->data_xfer_len = 0; /* No data transfer for ABTS */
+
+ abts_req = (struct bnx2fc_mp_req *)&(abts_io_req->mp_req);
+ memset(abts_req, 0, sizeof(struct bnx2fc_mp_req));
+
+ /* Fill FC header */
+ fc_hdr = &(abts_req->req_fc_hdr);
+
+ /* Obtain oxid and rxid for the original exchange to be aborted */
+ fc_hdr->fh_ox_id = htons(io_req->xid);
+ fc_hdr->fh_rx_id = htons(io_req->task->rxwr_txrd.var_ctx.rx_id);
+
+ sid = tgt->sid;
+ did = rport->port_id;
+
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_BA_ABTS, did, sid,
+ FC_TYPE_BLS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+
+ xid = abts_io_req->xid;
+ BNX2FC_IO_DBG(abts_io_req, "ABTS io_req\n");
+ task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *)
+ interface->hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ bnx2fc_init_mp_task(abts_io_req, task);
+
+ /*
+ * ABTS task is a temporary task that will be cleaned up
+ * irrespective of ABTS response. We need to start the timer
+ * for the original exchange, as the CQE is posted for the original
+ * IO request.
+ *
+ * Timer for ABTS is started only when it is originated by a
+ * TM request. For the ABTS issued as part of ULP timeout,
+ * scsi-ml maintains the timers.
+ */
+
+ /* if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags))*/
+ bnx2fc_cmd_timer_set(io_req, 2 * r_a_tov);
+
+ /* Obtain free SQ entry */
+ bnx2fc_add_2_sq(tgt, xid);
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+
+abts_err:
+ return rc;
+}
+
+int bnx2fc_initiate_seq_cleanup(struct bnx2fc_cmd *orig_io_req, u32 offset,
+ enum fc_rctl r_ctl)
+{
+ struct fc_lport *lport;
+ struct bnx2fc_rport *tgt = orig_io_req->tgt;
+ struct bnx2fc_interface *interface;
+ struct fcoe_port *port;
+ struct bnx2fc_cmd *seq_clnp_req;
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ struct bnx2fc_els_cb_arg *cb_arg = NULL;
+ int task_idx, index;
+ u16 xid;
+ int rc = 0;
+
+ BNX2FC_IO_DBG(orig_io_req, "bnx2fc_initiate_seq_cleanup xid = 0x%x\n",
+ orig_io_req->xid);
+ kref_get(&orig_io_req->refcount);
+
+ port = orig_io_req->port;
+ interface = port->priv;
+ lport = port->lport;
+
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to alloc cb_arg for seq clnup\n");
+ rc = -ENOMEM;
+ goto cleanup_err;
+ }
+
+ seq_clnp_req = bnx2fc_elstm_alloc(tgt, BNX2FC_SEQ_CLEANUP);
+ if (!seq_clnp_req) {
+ printk(KERN_ERR PFX "cleanup: couldnt allocate cmd\n");
+ rc = -ENOMEM;
+ kfree(cb_arg);
+ goto cleanup_err;
+ }
+ /* Initialize rest of io_req fields */
+ seq_clnp_req->sc_cmd = NULL;
+ seq_clnp_req->port = port;
+ seq_clnp_req->tgt = tgt;
+ seq_clnp_req->data_xfer_len = 0; /* No data transfer for cleanup */
+
+ xid = seq_clnp_req->xid;
+
+ task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *)
+ interface->hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ cb_arg->aborted_io_req = orig_io_req;
+ cb_arg->io_req = seq_clnp_req;
+ cb_arg->r_ctl = r_ctl;
+ cb_arg->offset = offset;
+ seq_clnp_req->cb_arg = cb_arg;
+
+ printk(KERN_ERR PFX "call init_seq_cleanup_task\n");
+ bnx2fc_init_seq_cleanup_task(seq_clnp_req, task, orig_io_req, offset);
+
+ /* Obtain free SQ entry */
+ bnx2fc_add_2_sq(tgt, xid);
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+cleanup_err:
+ return rc;
+}
+
+int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req)
+{
+ struct fc_lport *lport;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct bnx2fc_interface *interface;
+ struct fcoe_port *port;
+ struct bnx2fc_cmd *cleanup_io_req;
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ int task_idx, index;
+ u16 xid, orig_xid;
+ int rc = 0;
+
+ /* ASSUMPTION: called with tgt_lock held */
+ BNX2FC_IO_DBG(io_req, "Entered bnx2fc_initiate_cleanup\n");
+
+ port = io_req->port;
+ interface = port->priv;
+ lport = port->lport;
+
+ cleanup_io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_CLEANUP);
+ if (!cleanup_io_req) {
+ printk(KERN_ERR PFX "cleanup: couldnt allocate cmd\n");
+ rc = -1;
+ goto cleanup_err;
+ }
+
+ /* Initialize rest of io_req fields */
+ cleanup_io_req->sc_cmd = NULL;
+ cleanup_io_req->port = port;
+ cleanup_io_req->tgt = tgt;
+ cleanup_io_req->data_xfer_len = 0; /* No data transfer for cleanup */
+
+ xid = cleanup_io_req->xid;
+
+ task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *)
+ interface->hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ orig_xid = io_req->xid;
+
+ BNX2FC_IO_DBG(io_req, "CLEANUP io_req xid = 0x%x\n", xid);
+
+ bnx2fc_init_cleanup_task(cleanup_io_req, task, orig_xid);
+
+ /* Obtain free SQ entry */
+ bnx2fc_add_2_sq(tgt, xid);
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+
+cleanup_err:
+ return rc;
+}
+
+/**
+ * bnx2fc_eh_target_reset: Reset a target
+ *
+ * @sc_cmd: SCSI command
+ *
+ * Set from SCSI host template to send task mgmt command to the target
+ * and wait for the response
+ */
+int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd)
+{
+ return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
+}
+
+/**
+ * bnx2fc_eh_device_reset - Reset a single LUN
+ *
+ * @sc_cmd: SCSI command
+ *
+ * Set from SCSI host template to send task mgmt command to the target
+ * and wait for the response
+ */
+int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd)
+{
+ return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
+}
+
+int bnx2fc_expl_logo(struct fc_lport *lport, struct bnx2fc_cmd *io_req)
+{
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct fc_rport_priv *rdata = tgt->rdata;
+ int logo_issued;
+ int rc = SUCCESS;
+ int wait_cnt = 0;
+
+ BNX2FC_IO_DBG(io_req, "Expl logo - tgt flags = 0x%lx\n",
+ tgt->flags);
+ logo_issued = test_and_set_bit(BNX2FC_FLAG_EXPL_LOGO,
+ &tgt->flags);
+ io_req->wait_for_comp = 1;
+ bnx2fc_initiate_cleanup(io_req);
+
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ wait_for_completion(&io_req->tm_done);
+
+ io_req->wait_for_comp = 0;
+ /*
+ * release the reference taken in eh_abort to allow the
+ * target to re-login after flushing IOs
+ */
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+
+ if (!logo_issued) {
+ clear_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
+ mutex_lock(&lport->disc.disc_mutex);
+ lport->tt.rport_logoff(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ do {
+ msleep(BNX2FC_RELOGIN_WAIT_TIME);
+ if (wait_cnt++ > BNX2FC_RELOGIN_WAIT_CNT) {
+ rc = FAILED;
+ break;
+ }
+ } while (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags));
+ }
+ spin_lock_bh(&tgt->tgt_lock);
+ return rc;
+}
+/**
+ * bnx2fc_eh_abort - eh_abort_handler api to abort an outstanding
+ * SCSI command
+ *
+ * @sc_cmd: SCSI_ML command pointer
+ *
+ * SCSI abort request handler
+ */
+int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
+{
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct bnx2fc_cmd *io_req;
+ struct fc_lport *lport;
+ struct bnx2fc_rport *tgt;
+ int rc = FAILED;
+
+
+ rc = fc_block_scsi_eh(sc_cmd);
+ if (rc)
+ return rc;
+
+ lport = shost_priv(sc_cmd->device->host);
+ if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
+ printk(KERN_ERR PFX "eh_abort: link not ready\n");
+ return rc;
+ }
+
+ tgt = (struct bnx2fc_rport *)&rp[1];
+
+ BNX2FC_TGT_DBG(tgt, "Entered bnx2fc_eh_abort\n");
+
+ spin_lock_bh(&tgt->tgt_lock);
+ io_req = (struct bnx2fc_cmd *)sc_cmd->SCp.ptr;
+ if (!io_req) {
+ /* Command might have just completed */
+ printk(KERN_ERR PFX "eh_abort: io_req is NULL\n");
+ spin_unlock_bh(&tgt->tgt_lock);
+ return SUCCESS;
+ }
+ BNX2FC_IO_DBG(io_req, "eh_abort - refcnt = %d\n",
+ io_req->refcount.refcount.counter);
+
+ /* Hold IO request across abort processing */
+ kref_get(&io_req->refcount);
+
+ BUG_ON(tgt != io_req->tgt);
+
+ /* Remove the io_req from the active_q. */
+ /*
+ * Task Mgmt functions (LUN RESET & TGT RESET) will not
+ * issue an ABTS on this particular IO req, as the
+ * io_req is no longer in the active_q.
+ */
+ if (tgt->flush_in_prog) {
+ printk(KERN_ERR PFX "eh_abort: io_req (xid = 0x%x) "
+ "flush in progress\n", io_req->xid);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return SUCCESS;
+ }
+
+ if (io_req->on_active_queue == 0) {
+ printk(KERN_ERR PFX "eh_abort: io_req (xid = 0x%x) "
+ "not on active_q\n", io_req->xid);
+ /*
+ * This condition can happen only due to the FW bug,
+ * where we do not receive cleanup response from
+ * the FW. Handle this case gracefully by erroring
+ * back the IO request to SCSI-ml
+ */
+ bnx2fc_scsi_done(io_req, DID_ABORT);
+
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return SUCCESS;
+ }
+
+ /*
+ * Only eh_abort processing will remove the IO from
+ * active_cmd_q before processing the request. this is
+ * done to avoid race conditions between IOs aborted
+ * as part of task management completion and eh_abort
+ * processing
+ */
+ list_del_init(&io_req->link);
+ io_req->on_active_queue = 0;
+ /* Move IO req to retire queue */
+ list_add_tail(&io_req->link, &tgt->io_retire_queue);
+
+ init_completion(&io_req->tm_done);
+
+ if (test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
+ printk(KERN_ERR PFX "eh_abort: io_req (xid = 0x%x) "
+ "already in abts processing\n", io_req->xid);
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+ rc = bnx2fc_expl_logo(lport, io_req);
+ /* This only occurs when an task abort was requested while ABTS
+ is in progress. Setting the IO_CLEANUP flag will skip the
+ RRQ process in the case when the fw generated SCSI_CMD cmpl
+ was a result from the ABTS request rather than the CLEANUP
+ request */
+ set_bit(BNX2FC_FLAG_IO_CLEANUP, &io_req->req_flags);
+ goto out;
+ }
+
+ /* Cancel the current timer running on this io_req */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+ set_bit(BNX2FC_FLAG_EH_ABORT, &io_req->req_flags);
+ io_req->wait_for_comp = 1;
+ rc = bnx2fc_initiate_abts(io_req);
+ if (rc == FAILED) {
+ bnx2fc_initiate_cleanup(io_req);
+ spin_unlock_bh(&tgt->tgt_lock);
+ wait_for_completion(&io_req->tm_done);
+ spin_lock_bh(&tgt->tgt_lock);
+ io_req->wait_for_comp = 0;
+ goto done;
+ }
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ wait_for_completion(&io_req->tm_done);
+
+ spin_lock_bh(&tgt->tgt_lock);
+ io_req->wait_for_comp = 0;
+ if (test_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "IO completed in a different context\n");
+ rc = SUCCESS;
+ } else if (!(test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+ &io_req->req_flags))) {
+ /* Let the scsi-ml try to recover this command */
+ printk(KERN_ERR PFX "abort failed, xid = 0x%x\n",
+ io_req->xid);
+ rc = bnx2fc_expl_logo(lport, io_req);
+ goto out;
+ } else {
+ /*
+ * We come here even when there was a race condition
+ * between timeout and abts completion, and abts
+ * completion happens just in time.
+ */
+ BNX2FC_IO_DBG(io_req, "abort succeeded\n");
+ rc = SUCCESS;
+ bnx2fc_scsi_done(io_req, DID_ABORT);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ }
+done:
+ /* release the reference taken in eh_abort */
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+out:
+ spin_unlock_bh(&tgt->tgt_lock);
+ return rc;
+}
+
+void bnx2fc_process_seq_cleanup_compl(struct bnx2fc_cmd *seq_clnp_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 rx_state)
+{
+ struct bnx2fc_els_cb_arg *cb_arg = seq_clnp_req->cb_arg;
+ struct bnx2fc_cmd *orig_io_req = cb_arg->aborted_io_req;
+ u32 offset = cb_arg->offset;
+ enum fc_rctl r_ctl = cb_arg->r_ctl;
+ int rc = 0;
+ struct bnx2fc_rport *tgt = orig_io_req->tgt;
+
+ BNX2FC_IO_DBG(orig_io_req, "Entered process_cleanup_compl xid = 0x%x"
+ "cmd_type = %d\n",
+ seq_clnp_req->xid, seq_clnp_req->cmd_type);
+
+ if (rx_state == FCOE_TASK_RX_STATE_IGNORED_SEQUENCE_CLEANUP) {
+ printk(KERN_ERR PFX "seq cleanup ignored - xid = 0x%x\n",
+ seq_clnp_req->xid);
+ goto free_cb_arg;
+ }
+
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = bnx2fc_send_srr(orig_io_req, offset, r_ctl);
+ spin_lock_bh(&tgt->tgt_lock);
+
+ if (rc)
+ printk(KERN_ERR PFX "clnup_compl: Unable to send SRR"
+ " IO will abort\n");
+ seq_clnp_req->cb_arg = NULL;
+ kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
+free_cb_arg:
+ kfree(cb_arg);
+ return;
+}
+
+void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq)
+{
+ BNX2FC_IO_DBG(io_req, "Entered process_cleanup_compl "
+ "refcnt = %d, cmd_type = %d\n",
+ io_req->refcount.refcount.counter, io_req->cmd_type);
+ bnx2fc_scsi_done(io_req, DID_ERROR);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ if (io_req->wait_for_comp)
+ complete(&io_req->tm_done);
+}
+
+void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq)
+{
+ u32 r_ctl;
+ u32 r_a_tov = FC_DEF_R_A_TOV;
+ u8 issue_rrq = 0;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+
+ BNX2FC_IO_DBG(io_req, "Entered process_abts_compl xid = 0x%x"
+ "refcnt = %d, cmd_type = %d\n",
+ io_req->xid,
+ io_req->refcount.refcount.counter, io_req->cmd_type);
+
+ if (test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+ &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "Timer context finished processing"
+ " this io\n");
+ return;
+ }
+
+ /* Do not issue RRQ as this IO is already cleanedup */
+ if (test_and_set_bit(BNX2FC_FLAG_IO_CLEANUP,
+ &io_req->req_flags))
+ goto io_compl;
+
+ /*
+ * For ABTS issued due to SCSI eh_abort_handler, timeout
+ * values are maintained by scsi-ml itself. Cancel timeout
+ * in case ABTS issued as part of task management function
+ * or due to FW error.
+ */
+ if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags))
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+
+ r_ctl = (u8)task->rxwr_only.union_ctx.comp_info.abts_rsp.r_ctl;
+
+ switch (r_ctl) {
+ case FC_RCTL_BA_ACC:
+ /*
+ * Dont release this cmd yet. It will be relesed
+ * after we get RRQ response
+ */
+ BNX2FC_IO_DBG(io_req, "ABTS response - ACC Send RRQ\n");
+ issue_rrq = 1;
+ break;
+
+ case FC_RCTL_BA_RJT:
+ BNX2FC_IO_DBG(io_req, "ABTS response - RJT\n");
+ break;
+ default:
+ printk(KERN_ERR PFX "Unknown ABTS response\n");
+ break;
+ }
+
+ if (issue_rrq) {
+ BNX2FC_IO_DBG(io_req, "Issue RRQ after R_A_TOV\n");
+ set_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags);
+ }
+ set_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags);
+ bnx2fc_cmd_timer_set(io_req, r_a_tov);
+
+io_compl:
+ if (io_req->wait_for_comp) {
+ if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+ &io_req->req_flags))
+ complete(&io_req->tm_done);
+ } else {
+ /*
+ * We end up here when ABTS is issued as
+ * in asynchronous context, i.e., as part
+ * of task management completion, or
+ * when FW error is received or when the
+ * ABTS is issued when the IO is timed
+ * out.
+ */
+
+ if (io_req->on_active_queue) {
+ list_del_init(&io_req->link);
+ io_req->on_active_queue = 0;
+ /* Move IO req to retire queue */
+ list_add_tail(&io_req->link, &tgt->io_retire_queue);
+ }
+ bnx2fc_scsi_done(io_req, DID_ERROR);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ }
+}
+
+static void bnx2fc_lun_reset_cmpl(struct bnx2fc_cmd *io_req)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct bnx2fc_cmd *cmd, *tmp;
+ int tm_lun = sc_cmd->device->lun;
+ int rc = 0;
+ int lun;
+
+ /* called with tgt_lock held */
+ BNX2FC_IO_DBG(io_req, "Entered bnx2fc_lun_reset_cmpl\n");
+ /*
+ * Walk thru the active_ios queue and ABORT the IO
+ * that matches with the LUN that was reset
+ */
+ list_for_each_entry_safe(cmd, tmp, &tgt->active_cmd_queue, link) {
+ BNX2FC_TGT_DBG(tgt, "LUN RST cmpl: scan for pending IOs\n");
+ lun = cmd->sc_cmd->device->lun;
+ if (lun == tm_lun) {
+ /* Initiate ABTS on this cmd */
+ if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+ &cmd->req_flags)) {
+ /* cancel the IO timeout */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release);
+ /* timer hold */
+ rc = bnx2fc_initiate_abts(cmd);
+ /* abts shouldn't fail in this context */
+ WARN_ON(rc != SUCCESS);
+ } else
+ printk(KERN_ERR PFX "lun_rst: abts already in"
+ " progress for this IO 0x%x\n",
+ cmd->xid);
+ }
+ }
+}
+
+static void bnx2fc_tgt_reset_cmpl(struct bnx2fc_cmd *io_req)
+{
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct bnx2fc_cmd *cmd, *tmp;
+ int rc = 0;
+
+ /* called with tgt_lock held */
+ BNX2FC_IO_DBG(io_req, "Entered bnx2fc_tgt_reset_cmpl\n");
+ /*
+ * Walk thru the active_ios queue and ABORT the IO
+ * that matches with the LUN that was reset
+ */
+ list_for_each_entry_safe(cmd, tmp, &tgt->active_cmd_queue, link) {
+ BNX2FC_TGT_DBG(tgt, "TGT RST cmpl: scan for pending IOs\n");
+ /* Initiate ABTS */
+ if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+ &cmd->req_flags)) {
+ /* cancel the IO timeout */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* timer hold */
+ rc = bnx2fc_initiate_abts(cmd);
+ /* abts shouldn't fail in this context */
+ WARN_ON(rc != SUCCESS);
+
+ } else
+ printk(KERN_ERR PFX "tgt_rst: abts already in progress"
+ " for this IO 0x%x\n", cmd->xid);
+ }
+}
+
+void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task, u8 num_rq)
+{
+ struct bnx2fc_mp_req *tm_req;
+ struct fc_frame_header *fc_hdr;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ u64 *hdr;
+ u64 *temp_hdr;
+ void *rsp_buf;
+
+ /* Called with tgt_lock held */
+ BNX2FC_IO_DBG(io_req, "Entered process_tm_compl\n");
+
+ if (!(test_bit(BNX2FC_FLAG_TM_TIMEOUT, &io_req->req_flags)))
+ set_bit(BNX2FC_FLAG_TM_COMPL, &io_req->req_flags);
+ else {
+ /* TM has already timed out and we got
+ * delayed completion. Ignore completion
+ * processing.
+ */
+ return;
+ }
+
+ tm_req = &(io_req->mp_req);
+ fc_hdr = &(tm_req->resp_fc_hdr);
+ hdr = (u64 *)fc_hdr;
+ temp_hdr = (u64 *)
+ &task->rxwr_only.union_ctx.comp_info.mp_rsp.fc_hdr;
+ hdr[0] = cpu_to_be64(temp_hdr[0]);
+ hdr[1] = cpu_to_be64(temp_hdr[1]);
+ hdr[2] = cpu_to_be64(temp_hdr[2]);
+
+ tm_req->resp_len =
+ task->rxwr_only.union_ctx.comp_info.mp_rsp.mp_payload_len;
+
+ rsp_buf = tm_req->resp_buf;
+
+ if (fc_hdr->fh_r_ctl == FC_RCTL_DD_CMD_STATUS) {
+ bnx2fc_parse_fcp_rsp(io_req,
+ (struct fcoe_fcp_rsp_payload *)
+ rsp_buf, num_rq);
+ if (io_req->fcp_rsp_code == 0) {
+ /* TM successful */
+ if (tm_req->tm_flags & FCP_TMF_LUN_RESET)
+ bnx2fc_lun_reset_cmpl(io_req);
+ else if (tm_req->tm_flags & FCP_TMF_TGT_RESET)
+ bnx2fc_tgt_reset_cmpl(io_req);
+ }
+ } else {
+ printk(KERN_ERR PFX "tmf's fc_hdr r_ctl = 0x%x\n",
+ fc_hdr->fh_r_ctl);
+ }
+ if (!sc_cmd->SCp.ptr) {
+ printk(KERN_ERR PFX "tm_compl: SCp.ptr is NULL\n");
+ return;
+ }
+ switch (io_req->fcp_status) {
+ case FC_GOOD:
+ if (io_req->cdb_status == 0) {
+ /* Good IO completion */
+ sc_cmd->result = DID_OK << 16;
+ } else {
+ /* Transport status is good, SCSI status not good */
+ sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+ }
+ if (io_req->fcp_resid)
+ scsi_set_resid(sc_cmd, io_req->fcp_resid);
+ break;
+
+ default:
+ BNX2FC_IO_DBG(io_req, "process_tm_compl: fcp_status = %d\n",
+ io_req->fcp_status);
+ break;
+ }
+
+ sc_cmd = io_req->sc_cmd;
+ io_req->sc_cmd = NULL;
+
+ /* check if the io_req exists in tgt's tmf_q */
+ if (io_req->on_tmf_queue) {
+
+ list_del_init(&io_req->link);
+ io_req->on_tmf_queue = 0;
+ } else {
+
+ printk(KERN_ERR PFX "Command not on active_cmd_queue!\n");
+ return;
+ }
+
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ if (io_req->wait_for_comp) {
+ BNX2FC_IO_DBG(io_req, "tm_compl - wake up the waiter\n");
+ complete(&io_req->tm_done);
+ }
+}
+
+static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len,
+ int bd_index)
+{
+ struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
+ int frag_size, sg_frags;
+
+ sg_frags = 0;
+ while (sg_len) {
+ if (sg_len >= BNX2FC_BD_SPLIT_SZ)
+ frag_size = BNX2FC_BD_SPLIT_SZ;
+ else
+ frag_size = sg_len;
+ bd[bd_index + sg_frags].buf_addr_lo = addr & 0xffffffff;
+ bd[bd_index + sg_frags].buf_addr_hi = addr >> 32;
+ bd[bd_index + sg_frags].buf_len = (u16)frag_size;
+ bd[bd_index + sg_frags].flags = 0;
+
+ addr += (u64) frag_size;
+ sg_frags++;
+ sg_len -= frag_size;
+ }
+ return sg_frags;
+
+}
+
+static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req)
+{
+ struct bnx2fc_interface *interface = io_req->port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+ struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
+ struct scatterlist *sg;
+ int byte_count = 0;
+ int sg_count = 0;
+ int bd_count = 0;
+ int sg_frags;
+ unsigned int sg_len;
+ u64 addr;
+ int i;
+
+ sg_count = dma_map_sg(&hba->pcidev->dev, scsi_sglist(sc),
+ scsi_sg_count(sc), sc->sc_data_direction);
+ scsi_for_each_sg(sc, sg, sg_count, i) {
+ sg_len = sg_dma_len(sg);
+ addr = sg_dma_address(sg);
+ if (sg_len > BNX2FC_MAX_BD_LEN) {
+ sg_frags = bnx2fc_split_bd(io_req, addr, sg_len,
+ bd_count);
+ } else {
+
+ sg_frags = 1;
+ bd[bd_count].buf_addr_lo = addr & 0xffffffff;
+ bd[bd_count].buf_addr_hi = addr >> 32;
+ bd[bd_count].buf_len = (u16)sg_len;
+ bd[bd_count].flags = 0;
+ }
+ bd_count += sg_frags;
+ byte_count += sg_len;
+ }
+ if (byte_count != scsi_bufflen(sc))
+ printk(KERN_ERR PFX "byte_count = %d != scsi_bufflen = %d, "
+ "task_id = 0x%x\n", byte_count, scsi_bufflen(sc),
+ io_req->xid);
+ return bd_count;
+}
+
+static int bnx2fc_build_bd_list_from_sg(struct bnx2fc_cmd *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+ struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
+ int bd_count;
+
+ if (scsi_sg_count(sc)) {
+ bd_count = bnx2fc_map_sg(io_req);
+ if (bd_count == 0)
+ return -ENOMEM;
+ } else {
+ bd_count = 0;
+ bd[0].buf_addr_lo = bd[0].buf_addr_hi = 0;
+ bd[0].buf_len = bd[0].flags = 0;
+ }
+ io_req->bd_tbl->bd_valid = bd_count;
+
+ return 0;
+}
+
+static void bnx2fc_unmap_sg_list(struct bnx2fc_cmd *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+
+ if (io_req->bd_tbl->bd_valid && sc) {
+ scsi_dma_unmap(sc);
+ io_req->bd_tbl->bd_valid = 0;
+ }
+}
+
+void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
+ struct fcp_cmnd *fcp_cmnd)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ char tag[2];
+
+ memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd));
+
+ int_to_scsilun(sc_cmd->device->lun, &fcp_cmnd->fc_lun);
+
+ fcp_cmnd->fc_dl = htonl(io_req->data_xfer_len);
+ memcpy(fcp_cmnd->fc_cdb, sc_cmd->cmnd, sc_cmd->cmd_len);
+
+ fcp_cmnd->fc_cmdref = 0;
+ fcp_cmnd->fc_pri_ta = 0;
+ fcp_cmnd->fc_tm_flags = io_req->mp_req.tm_flags;
+ fcp_cmnd->fc_flags = io_req->io_req_flags;
+
+ if (scsi_populate_tag_msg(sc_cmd, tag)) {
+ switch (tag[0]) {
+ case HEAD_OF_QUEUE_TAG:
+ fcp_cmnd->fc_pri_ta = FCP_PTA_HEADQ;
+ break;
+ case ORDERED_QUEUE_TAG:
+ fcp_cmnd->fc_pri_ta = FCP_PTA_ORDERED;
+ break;
+ default:
+ fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
+ break;
+ }
+ } else {
+ fcp_cmnd->fc_pri_ta = 0;
+ }
+}
+
+static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req,
+ struct fcoe_fcp_rsp_payload *fcp_rsp,
+ u8 num_rq)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ u8 rsp_flags = fcp_rsp->fcp_flags.flags;
+ u32 rq_buff_len = 0;
+ int i;
+ unsigned char *rq_data;
+ unsigned char *dummy;
+ int fcp_sns_len = 0;
+ int fcp_rsp_len = 0;
+
+ io_req->fcp_status = FC_GOOD;
+ io_req->fcp_resid = fcp_rsp->fcp_resid;
+
+ io_req->scsi_comp_flags = rsp_flags;
+ CMD_SCSI_STATUS(sc_cmd) = io_req->cdb_status =
+ fcp_rsp->scsi_status_code;
+
+ /* Fetch fcp_rsp_info and fcp_sns_info if available */
+ if (num_rq) {
+
+ /*
+ * We do not anticipate num_rq >1, as the linux defined
+ * SCSI_SENSE_BUFFERSIZE is 96 bytes + 8 bytes of FCP_RSP_INFO
+ * 256 bytes of single rq buffer is good enough to hold this.
+ */
+
+ if (rsp_flags &
+ FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID) {
+ fcp_rsp_len = rq_buff_len
+ = fcp_rsp->fcp_rsp_len;
+ }
+
+ if (rsp_flags &
+ FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID) {
+ fcp_sns_len = fcp_rsp->fcp_sns_len;
+ rq_buff_len += fcp_rsp->fcp_sns_len;
+ }
+
+ io_req->fcp_rsp_len = fcp_rsp_len;
+ io_req->fcp_sns_len = fcp_sns_len;
+
+ if (rq_buff_len > num_rq * BNX2FC_RQ_BUF_SZ) {
+ /* Invalid sense sense length. */
+ printk(KERN_ERR PFX "invalid sns length %d\n",
+ rq_buff_len);
+ /* reset rq_buff_len */
+ rq_buff_len = num_rq * BNX2FC_RQ_BUF_SZ;
+ }
+
+ rq_data = bnx2fc_get_next_rqe(tgt, 1);
+
+ if (num_rq > 1) {
+ /* We do not need extra sense data */
+ for (i = 1; i < num_rq; i++)
+ dummy = bnx2fc_get_next_rqe(tgt, 1);
+ }
+
+ /* fetch fcp_rsp_code */
+ if ((fcp_rsp_len == 4) || (fcp_rsp_len == 8)) {
+ /* Only for task management function */
+ io_req->fcp_rsp_code = rq_data[3];
+ printk(KERN_ERR PFX "fcp_rsp_code = %d\n",
+ io_req->fcp_rsp_code);
+ }
+
+ /* fetch sense data */
+ rq_data += fcp_rsp_len;
+
+ if (fcp_sns_len > SCSI_SENSE_BUFFERSIZE) {
+ printk(KERN_ERR PFX "Truncating sense buffer\n");
+ fcp_sns_len = SCSI_SENSE_BUFFERSIZE;
+ }
+
+ memset(sc_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+ if (fcp_sns_len)
+ memcpy(sc_cmd->sense_buffer, rq_data, fcp_sns_len);
+
+ /* return RQ entries */
+ for (i = 0; i < num_rq; i++)
+ bnx2fc_return_rqe(tgt, 1);
+ }
+}
+
+/**
+ * bnx2fc_queuecommand - Queuecommand function of the scsi template
+ *
+ * @host: The Scsi_Host the command was issued to
+ * @sc_cmd: struct scsi_cmnd to be executed
+ *
+ * This is the IO strategy routine, called by SCSI-ML
+ **/
+int bnx2fc_queuecommand(struct Scsi_Host *host,
+ struct scsi_cmnd *sc_cmd)
+{
+ struct fc_lport *lport = shost_priv(host);
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct bnx2fc_rport *tgt;
+ struct bnx2fc_cmd *io_req;
+ int rc = 0;
+ int rval;
+
+ rval = fc_remote_port_chkready(rport);
+ if (rval) {
+ sc_cmd->result = rval;
+ sc_cmd->scsi_done(sc_cmd);
+ return 0;
+ }
+
+ if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ /* rport and tgt are allocated together, so tgt should be non-NULL */
+ tgt = (struct bnx2fc_rport *)&rp[1];
+
+ if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+ /*
+ * Session is not offloaded yet. Let SCSI-ml retry
+ * the command.
+ */
+ rc = SCSI_MLQUEUE_TARGET_BUSY;
+ goto exit_qcmd;
+ }
+ if (tgt->retry_delay_timestamp) {
+ if (time_after(jiffies, tgt->retry_delay_timestamp)) {
+ tgt->retry_delay_timestamp = 0;
+ } else {
+ /* If retry_delay timer is active, flow off the ML */
+ rc = SCSI_MLQUEUE_TARGET_BUSY;
+ goto exit_qcmd;
+ }
+ }
+ io_req = bnx2fc_cmd_alloc(tgt);
+ if (!io_req) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+ io_req->sc_cmd = sc_cmd;
+
+ if (bnx2fc_post_io_req(tgt, io_req)) {
+ printk(KERN_ERR PFX "Unable to post io_req\n");
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+exit_qcmd:
+ return rc;
+}
+
+void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq)
+{
+ struct fcoe_fcp_rsp_payload *fcp_rsp;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct scsi_cmnd *sc_cmd;
+ struct Scsi_Host *host;
+
+
+ /* scsi_cmd_cmpl is called with tgt lock held */
+
+ if (test_and_set_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags)) {
+ /* we will not receive ABTS response for this IO */
+ BNX2FC_IO_DBG(io_req, "Timer context finished processing "
+ "this scsi cmd\n");
+ }
+
+ /* Cancel the timeout_work, as we received IO completion */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+
+ sc_cmd = io_req->sc_cmd;
+ if (sc_cmd == NULL) {
+ printk(KERN_ERR PFX "scsi_cmd_compl - sc_cmd is NULL\n");
+ return;
+ }
+
+ /* Fetch fcp_rsp from task context and perform cmd completion */
+ fcp_rsp = (struct fcoe_fcp_rsp_payload *)
+ &(task->rxwr_only.union_ctx.comp_info.fcp_rsp.payload);
+
+ /* parse fcp_rsp and obtain sense data from RQ if available */
+ bnx2fc_parse_fcp_rsp(io_req, fcp_rsp, num_rq);
+
+ host = sc_cmd->device->host;
+ if (!sc_cmd->SCp.ptr) {
+ printk(KERN_ERR PFX "SCp.ptr is NULL\n");
+ return;
+ }
+
+ if (io_req->on_active_queue) {
+ list_del_init(&io_req->link);
+ io_req->on_active_queue = 0;
+ /* Move IO req to retire queue */
+ list_add_tail(&io_req->link, &tgt->io_retire_queue);
+ } else {
+ /* This should not happen, but could have been pulled
+ * by bnx2fc_flush_active_ios(), or during a race
+ * between command abort and (late) completion.
+ */
+ BNX2FC_IO_DBG(io_req, "xid not on active_cmd_queue\n");
+ if (io_req->wait_for_comp)
+ if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+ &io_req->req_flags))
+ complete(&io_req->tm_done);
+ }
+
+ bnx2fc_unmap_sg_list(io_req);
+ io_req->sc_cmd = NULL;
+
+ switch (io_req->fcp_status) {
+ case FC_GOOD:
+ if (io_req->cdb_status == 0) {
+ /* Good IO completion */
+ sc_cmd->result = DID_OK << 16;
+ } else {
+ /* Transport status is good, SCSI status not good */
+ BNX2FC_IO_DBG(io_req, "scsi_cmpl: cdb_status = %d"
+ " fcp_resid = 0x%x\n",
+ io_req->cdb_status, io_req->fcp_resid);
+ sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+
+ if (io_req->cdb_status == SAM_STAT_TASK_SET_FULL ||
+ io_req->cdb_status == SAM_STAT_BUSY) {
+ /* Set the jiffies + retry_delay_timer * 100ms
+ for the rport/tgt */
+ tgt->retry_delay_timestamp = jiffies +
+ fcp_rsp->retry_delay_timer * HZ / 10;
+ }
+
+ }
+ if (io_req->fcp_resid)
+ scsi_set_resid(sc_cmd, io_req->fcp_resid);
+ break;
+ default:
+ printk(KERN_ERR PFX "scsi_cmd_compl: fcp_status = %d\n",
+ io_req->fcp_status);
+ break;
+ }
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+}
+
+int bnx2fc_post_io_req(struct bnx2fc_rport *tgt,
+ struct bnx2fc_cmd *io_req)
+{
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct fcoe_port *port = tgt->port;
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct fc_lport *lport = port->lport;
+ struct fc_stats *stats;
+ int task_idx, index;
+ u16 xid;
+
+ /* Initialize rest of io_req fields */
+ io_req->cmd_type = BNX2FC_SCSI_CMD;
+ io_req->port = port;
+ io_req->tgt = tgt;
+ io_req->data_xfer_len = scsi_bufflen(sc_cmd);
+ sc_cmd->SCp.ptr = (char *)io_req;
+
+ stats = per_cpu_ptr(lport->stats, get_cpu());
+ if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE) {
+ io_req->io_req_flags = BNX2FC_READ;
+ stats->InputRequests++;
+ stats->InputBytes += io_req->data_xfer_len;
+ } else if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
+ io_req->io_req_flags = BNX2FC_WRITE;
+ stats->OutputRequests++;
+ stats->OutputBytes += io_req->data_xfer_len;
+ } else {
+ io_req->io_req_flags = 0;
+ stats->ControlRequests++;
+ }
+ put_cpu();
+
+ xid = io_req->xid;
+
+ /* Build buffer descriptor list for firmware from sg list */
+ if (bnx2fc_build_bd_list_from_sg(io_req)) {
+ printk(KERN_ERR PFX "BD list creation failed\n");
+ spin_lock_bh(&tgt->tgt_lock);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return -EAGAIN;
+ }
+
+ task_idx = xid / BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ bnx2fc_init_task(io_req, task);
+
+ spin_lock_bh(&tgt->tgt_lock);
+
+ if (tgt->flush_in_prog) {
+ printk(KERN_ERR PFX "Flush in progress..Host Busy\n");
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return -EAGAIN;
+ }
+
+ if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+ printk(KERN_ERR PFX "Session not ready...post_io\n");
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return -EAGAIN;
+ }
+
+ /* Time IO req */
+ if (tgt->io_timeout)
+ bnx2fc_cmd_timer_set(io_req, BNX2FC_IO_TIMEOUT);
+ /* Obtain free SQ entry */
+ bnx2fc_add_2_sq(tgt, xid);
+
+ /* Enqueue the io_req to active_cmd_queue */
+
+ io_req->on_active_queue = 1;
+ /* move io_req from pending_queue to active_queue */
+ list_add_tail(&io_req->link, &tgt->active_cmd_queue);
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return 0;
+}
diff --git a/drivers/scsi/bnx2fc/bnx2fc_tgt.c b/drivers/scsi/bnx2fc/bnx2fc_tgt.c
new file mode 100644
index 00000000000..6870cf6781d
--- /dev/null
+++ b/drivers/scsi/bnx2fc/bnx2fc_tgt.c
@@ -0,0 +1,909 @@
+/* bnx2fc_tgt.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * Handles operations such as session offload/upload etc, and manages
+ * session resources such as connection id and qp resources.
+ *
+ * Copyright (c) 2008 - 2013 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+static void bnx2fc_upld_timer(unsigned long data);
+static void bnx2fc_ofld_timer(unsigned long data);
+static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
+ struct fcoe_port *port,
+ struct fc_rport_priv *rdata);
+static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt);
+static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt);
+static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt);
+static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id);
+
+static void bnx2fc_upld_timer(unsigned long data)
+{
+
+ struct bnx2fc_rport *tgt = (struct bnx2fc_rport *)data;
+
+ BNX2FC_TGT_DBG(tgt, "upld_timer - Upload compl not received!!\n");
+ /* fake upload completion */
+ clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+ clear_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->upld_wait);
+}
+
+static void bnx2fc_ofld_timer(unsigned long data)
+{
+
+ struct bnx2fc_rport *tgt = (struct bnx2fc_rport *)data;
+
+ BNX2FC_TGT_DBG(tgt, "entered bnx2fc_ofld_timer\n");
+ /* NOTE: This function should never be called, as
+ * offload should never timeout
+ */
+ /*
+ * If the timer has expired, this session is dead
+ * Clear offloaded flag and logout of this device.
+ * Since OFFLOADED flag is cleared, this case
+ * will be considered as offload error and the
+ * port will be logged off, and conn_id, session
+ * resources are freed up in bnx2fc_offload_session
+ */
+ clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+ clear_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->ofld_wait);
+}
+
+static void bnx2fc_ofld_wait(struct bnx2fc_rport *tgt)
+{
+ setup_timer(&tgt->ofld_timer, bnx2fc_ofld_timer, (unsigned long)tgt);
+ mod_timer(&tgt->ofld_timer, jiffies + BNX2FC_FW_TIMEOUT);
+
+ wait_event_interruptible(tgt->ofld_wait,
+ (test_bit(
+ BNX2FC_FLAG_OFLD_REQ_CMPL,
+ &tgt->flags)));
+ if (signal_pending(current))
+ flush_signals(current);
+ del_timer_sync(&tgt->ofld_timer);
+}
+
+static void bnx2fc_offload_session(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt,
+ struct fc_rport_priv *rdata)
+{
+ struct fc_lport *lport = rdata->local_port;
+ struct fc_rport *rport = rdata->rport;
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ int rval;
+ int i = 0;
+
+ /* Initialize bnx2fc_rport */
+ /* NOTE: tgt is already bzero'd */
+ rval = bnx2fc_init_tgt(tgt, port, rdata);
+ if (rval) {
+ printk(KERN_ERR PFX "Failed to allocate conn id for "
+ "port_id (%6x)\n", rport->port_id);
+ goto tgt_init_err;
+ }
+
+ /* Allocate session resources */
+ rval = bnx2fc_alloc_session_resc(hba, tgt);
+ if (rval) {
+ printk(KERN_ERR PFX "Failed to allocate resources\n");
+ goto ofld_err;
+ }
+
+ /*
+ * Initialize FCoE session offload process.
+ * Upon completion of offload process add
+ * rport to list of rports
+ */
+retry_ofld:
+ clear_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+ rval = bnx2fc_send_session_ofld_req(port, tgt);
+ if (rval) {
+ printk(KERN_ERR PFX "ofld_req failed\n");
+ goto ofld_err;
+ }
+
+ /*
+ * wait for the session is offloaded and enabled. 3 Secs
+ * should be ample time for this process to complete.
+ */
+ bnx2fc_ofld_wait(tgt);
+
+ if (!(test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags))) {
+ if (test_and_clear_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE,
+ &tgt->flags)) {
+ BNX2FC_TGT_DBG(tgt, "ctx_alloc_failure, "
+ "retry ofld..%d\n", i++);
+ msleep_interruptible(1000);
+ if (i > 3) {
+ i = 0;
+ goto ofld_err;
+ }
+ goto retry_ofld;
+ }
+ goto ofld_err;
+ }
+ if (bnx2fc_map_doorbell(tgt)) {
+ printk(KERN_ERR PFX "map doorbell failed - no mem\n");
+ goto ofld_err;
+ }
+ clear_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+ rval = bnx2fc_send_session_enable_req(port, tgt);
+ if (rval) {
+ pr_err(PFX "enable session failed\n");
+ goto ofld_err;
+ }
+ bnx2fc_ofld_wait(tgt);
+ if (!(test_bit(BNX2FC_FLAG_ENABLED, &tgt->flags)))
+ goto ofld_err;
+ return;
+
+ofld_err:
+ /* couldn't offload the session. log off from this rport */
+ BNX2FC_TGT_DBG(tgt, "bnx2fc_offload_session - offload error\n");
+ clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+ /* Free session resources */
+ bnx2fc_free_session_resc(hba, tgt);
+tgt_init_err:
+ if (tgt->fcoe_conn_id != -1)
+ bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
+ lport->tt.rport_logoff(rdata);
+}
+
+void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt)
+{
+ struct bnx2fc_cmd *io_req;
+ struct bnx2fc_cmd *tmp;
+ int rc;
+ int i = 0;
+ BNX2FC_TGT_DBG(tgt, "Entered flush_active_ios - %d\n",
+ tgt->num_active_ios.counter);
+
+ spin_lock_bh(&tgt->tgt_lock);
+ tgt->flush_in_prog = 1;
+
+ list_for_each_entry_safe(io_req, tmp, &tgt->active_cmd_queue, link) {
+ i++;
+ list_del_init(&io_req->link);
+ io_req->on_active_queue = 0;
+ BNX2FC_IO_DBG(io_req, "cmd_queue cleanup\n");
+
+ if (cancel_delayed_work(&io_req->timeout_work)) {
+ if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+ &io_req->req_flags)) {
+ /* Handle eh_abort timeout */
+ BNX2FC_IO_DBG(io_req, "eh_abort for IO "
+ "cleaned up\n");
+ complete(&io_req->tm_done);
+ }
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+ }
+
+ set_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags);
+ set_bit(BNX2FC_FLAG_IO_CLEANUP, &io_req->req_flags);
+
+ /* Do not issue cleanup when disable request failed */
+ if (test_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags))
+ bnx2fc_process_cleanup_compl(io_req, io_req->task, 0);
+ else {
+ rc = bnx2fc_initiate_cleanup(io_req);
+ BUG_ON(rc);
+ }
+ }
+
+ list_for_each_entry_safe(io_req, tmp, &tgt->active_tm_queue, link) {
+ i++;
+ list_del_init(&io_req->link);
+ io_req->on_tmf_queue = 0;
+ BNX2FC_IO_DBG(io_req, "tm_queue cleanup\n");
+ if (io_req->wait_for_comp)
+ complete(&io_req->tm_done);
+ }
+
+ list_for_each_entry_safe(io_req, tmp, &tgt->els_queue, link) {
+ i++;
+ list_del_init(&io_req->link);
+ io_req->on_active_queue = 0;
+
+ BNX2FC_IO_DBG(io_req, "els_queue cleanup\n");
+
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+
+ if ((io_req->cb_func) && (io_req->cb_arg)) {
+ io_req->cb_func(io_req->cb_arg);
+ io_req->cb_arg = NULL;
+ }
+
+ /* Do not issue cleanup when disable request failed */
+ if (test_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags))
+ bnx2fc_process_cleanup_compl(io_req, io_req->task, 0);
+ else {
+ rc = bnx2fc_initiate_cleanup(io_req);
+ BUG_ON(rc);
+ }
+ }
+
+ list_for_each_entry_safe(io_req, tmp, &tgt->io_retire_queue, link) {
+ i++;
+ list_del_init(&io_req->link);
+
+ BNX2FC_IO_DBG(io_req, "retire_queue flush\n");
+
+ if (cancel_delayed_work(&io_req->timeout_work)) {
+ if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+ &io_req->req_flags)) {
+ /* Handle eh_abort timeout */
+ BNX2FC_IO_DBG(io_req, "eh_abort for IO "
+ "in retire_q\n");
+ if (io_req->wait_for_comp)
+ complete(&io_req->tm_done);
+ }
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ }
+
+ clear_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags);
+ }
+
+ BNX2FC_TGT_DBG(tgt, "IOs flushed = %d\n", i);
+ i = 0;
+ spin_unlock_bh(&tgt->tgt_lock);
+ /* wait for active_ios to go to 0 */
+ while ((tgt->num_active_ios.counter != 0) && (i++ < BNX2FC_WAIT_CNT))
+ msleep(25);
+ if (tgt->num_active_ios.counter != 0)
+ printk(KERN_ERR PFX "CLEANUP on port 0x%x:"
+ " active_ios = %d\n",
+ tgt->rdata->ids.port_id, tgt->num_active_ios.counter);
+ spin_lock_bh(&tgt->tgt_lock);
+ tgt->flush_in_prog = 0;
+ spin_unlock_bh(&tgt->tgt_lock);
+}
+
+static void bnx2fc_upld_wait(struct bnx2fc_rport *tgt)
+{
+ setup_timer(&tgt->upld_timer, bnx2fc_upld_timer, (unsigned long)tgt);
+ mod_timer(&tgt->upld_timer, jiffies + BNX2FC_FW_TIMEOUT);
+ wait_event_interruptible(tgt->upld_wait,
+ (test_bit(
+ BNX2FC_FLAG_UPLD_REQ_COMPL,
+ &tgt->flags)));
+ if (signal_pending(current))
+ flush_signals(current);
+ del_timer_sync(&tgt->upld_timer);
+}
+
+static void bnx2fc_upload_session(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt)
+{
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+
+ BNX2FC_TGT_DBG(tgt, "upload_session: active_ios = %d\n",
+ tgt->num_active_ios.counter);
+
+ /*
+ * Called with hba->hba_mutex held.
+ * This is a blocking call
+ */
+ clear_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ bnx2fc_send_session_disable_req(port, tgt);
+
+ /*
+ * wait for upload to complete. 3 Secs
+ * should be sufficient time for this process to complete.
+ */
+ BNX2FC_TGT_DBG(tgt, "waiting for disable compl\n");
+ bnx2fc_upld_wait(tgt);
+
+ /*
+ * traverse thru the active_q and tmf_q and cleanup
+ * IOs in these lists
+ */
+ BNX2FC_TGT_DBG(tgt, "flush/upload - disable wait flags = 0x%lx\n",
+ tgt->flags);
+ bnx2fc_flush_active_ios(tgt);
+
+ /* Issue destroy KWQE */
+ if (test_bit(BNX2FC_FLAG_DISABLED, &tgt->flags)) {
+ BNX2FC_TGT_DBG(tgt, "send destroy req\n");
+ clear_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ bnx2fc_send_session_destroy_req(hba, tgt);
+
+ /* wait for destroy to complete */
+ bnx2fc_upld_wait(tgt);
+
+ if (!(test_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags)))
+ printk(KERN_ERR PFX "ERROR!! destroy timed out\n");
+
+ BNX2FC_TGT_DBG(tgt, "destroy wait complete flags = 0x%lx\n",
+ tgt->flags);
+
+ } else if (test_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags)) {
+ printk(KERN_ERR PFX "ERROR!! DISABLE req failed, destroy"
+ " not sent to FW\n");
+ } else {
+ printk(KERN_ERR PFX "ERROR!! DISABLE req timed out, destroy"
+ " not sent to FW\n");
+ }
+
+ /* Free session resources */
+ bnx2fc_free_session_resc(hba, tgt);
+ bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
+}
+
+static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
+ struct fcoe_port *port,
+ struct fc_rport_priv *rdata)
+{
+
+ struct fc_rport *rport = rdata->rport;
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct b577xx_doorbell_set_prod *sq_db = &tgt->sq_db;
+ struct b577xx_fcoe_rx_doorbell *rx_db = &tgt->rx_db;
+
+ tgt->rport = rport;
+ tgt->rdata = rdata;
+ tgt->port = port;
+
+ if (hba->num_ofld_sess >= BNX2FC_NUM_MAX_SESS) {
+ BNX2FC_TGT_DBG(tgt, "exceeded max sessions. logoff this tgt\n");
+ tgt->fcoe_conn_id = -1;
+ return -1;
+ }
+
+ tgt->fcoe_conn_id = bnx2fc_alloc_conn_id(hba, tgt);
+ if (tgt->fcoe_conn_id == -1)
+ return -1;
+
+ BNX2FC_TGT_DBG(tgt, "init_tgt - conn_id = 0x%x\n", tgt->fcoe_conn_id);
+
+ tgt->max_sqes = BNX2FC_SQ_WQES_MAX;
+ tgt->max_rqes = BNX2FC_RQ_WQES_MAX;
+ tgt->max_cqes = BNX2FC_CQ_WQES_MAX;
+ atomic_set(&tgt->free_sqes, BNX2FC_SQ_WQES_MAX);
+
+ /* Initialize the toggle bit */
+ tgt->sq_curr_toggle_bit = 1;
+ tgt->cq_curr_toggle_bit = 1;
+ tgt->sq_prod_idx = 0;
+ tgt->cq_cons_idx = 0;
+ tgt->rq_prod_idx = 0x8000;
+ tgt->rq_cons_idx = 0;
+ atomic_set(&tgt->num_active_ios, 0);
+ tgt->retry_delay_timestamp = 0;
+
+ if (rdata->flags & FC_RP_FLAGS_RETRY &&
+ rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET &&
+ !(rdata->ids.roles & FC_RPORT_ROLE_FCP_INITIATOR)) {
+ tgt->dev_type = TYPE_TAPE;
+ tgt->io_timeout = 0; /* use default ULP timeout */
+ } else {
+ tgt->dev_type = TYPE_DISK;
+ tgt->io_timeout = BNX2FC_IO_TIMEOUT;
+ }
+
+ /* initialize sq doorbell */
+ sq_db->header.header = B577XX_DOORBELL_HDR_DB_TYPE;
+ sq_db->header.header |= B577XX_FCOE_CONNECTION_TYPE <<
+ B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT;
+ /* initialize rx doorbell */
+ rx_db->hdr.header = ((0x1 << B577XX_DOORBELL_HDR_RX_SHIFT) |
+ (0x1 << B577XX_DOORBELL_HDR_DB_TYPE_SHIFT) |
+ (B577XX_FCOE_CONNECTION_TYPE <<
+ B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT));
+ rx_db->params = (0x2 << B577XX_FCOE_RX_DOORBELL_NEGATIVE_ARM_SHIFT) |
+ (0x3 << B577XX_FCOE_RX_DOORBELL_OPCODE_SHIFT);
+
+ spin_lock_init(&tgt->tgt_lock);
+ spin_lock_init(&tgt->cq_lock);
+
+ /* Initialize active_cmd_queue list */
+ INIT_LIST_HEAD(&tgt->active_cmd_queue);
+
+ /* Initialize IO retire queue */
+ INIT_LIST_HEAD(&tgt->io_retire_queue);
+
+ INIT_LIST_HEAD(&tgt->els_queue);
+
+ /* Initialize active_tm_queue list */
+ INIT_LIST_HEAD(&tgt->active_tm_queue);
+
+ init_waitqueue_head(&tgt->ofld_wait);
+ init_waitqueue_head(&tgt->upld_wait);
+
+ return 0;
+}
+
+/**
+ * This event_callback is called after successful completion of libfc
+ * initiated target login. bnx2fc can proceed with initiating the session
+ * establishment.
+ */
+void bnx2fc_rport_event_handler(struct fc_lport *lport,
+ struct fc_rport_priv *rdata,
+ enum fc_rport_event event)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct fc_rport *rport = rdata->rport;
+ struct fc_rport_libfc_priv *rp;
+ struct bnx2fc_rport *tgt;
+ u32 port_id;
+
+ BNX2FC_HBA_DBG(lport, "rport_event_hdlr: event = %d, port_id = 0x%x\n",
+ event, rdata->ids.port_id);
+ switch (event) {
+ case RPORT_EV_READY:
+ if (!rport) {
+ printk(KERN_ERR PFX "rport is NULL: ERROR!\n");
+ break;
+ }
+
+ rp = rport->dd_data;
+ if (rport->port_id == FC_FID_DIR_SERV) {
+ /*
+ * bnx2fc_rport structure doesn't exist for
+ * directory server.
+ * We should not come here, as lport will
+ * take care of fabric login
+ */
+ printk(KERN_ERR PFX "%x - rport_event_handler ERROR\n",
+ rdata->ids.port_id);
+ break;
+ }
+
+ if (rdata->spp_type != FC_TYPE_FCP) {
+ BNX2FC_HBA_DBG(lport, "not FCP type target."
+ " not offloading\n");
+ break;
+ }
+ if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
+ BNX2FC_HBA_DBG(lport, "not FCP_TARGET"
+ " not offloading\n");
+ break;
+ }
+
+ /*
+ * Offlaod process is protected with hba mutex.
+ * Use the same mutex_lock for upload process too
+ */
+ mutex_lock(&hba->hba_mutex);
+ tgt = (struct bnx2fc_rport *)&rp[1];
+
+ /* This can happen when ADISC finds the same target */
+ if (test_bit(BNX2FC_FLAG_ENABLED, &tgt->flags)) {
+ BNX2FC_TGT_DBG(tgt, "already offloaded\n");
+ mutex_unlock(&hba->hba_mutex);
+ return;
+ }
+
+ /*
+ * Offload the session. This is a blocking call, and will
+ * wait until the session is offloaded.
+ */
+ bnx2fc_offload_session(port, tgt, rdata);
+
+ BNX2FC_TGT_DBG(tgt, "OFFLOAD num_ofld_sess = %d\n",
+ hba->num_ofld_sess);
+
+ if (test_bit(BNX2FC_FLAG_ENABLED, &tgt->flags)) {
+ /* Session is offloaded and enabled. */
+ BNX2FC_TGT_DBG(tgt, "sess offloaded\n");
+ /* This counter is protected with hba mutex */
+ hba->num_ofld_sess++;
+
+ set_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
+ } else {
+ /*
+ * Offload or enable would have failed.
+ * In offload/enable completion path, the
+ * rport would have already been removed
+ */
+ BNX2FC_TGT_DBG(tgt, "Port is being logged off as "
+ "offloaded flag not set\n");
+ }
+ mutex_unlock(&hba->hba_mutex);
+ break;
+ case RPORT_EV_LOGO:
+ case RPORT_EV_FAILED:
+ case RPORT_EV_STOP:
+ port_id = rdata->ids.port_id;
+ if (port_id == FC_FID_DIR_SERV)
+ break;
+
+ if (!rport) {
+ printk(KERN_INFO PFX "%x - rport not created Yet!!\n",
+ port_id);
+ break;
+ }
+ rp = rport->dd_data;
+ mutex_lock(&hba->hba_mutex);
+ /*
+ * Perform session upload. Note that rdata->peers is already
+ * removed from disc->rports list before we get this event.
+ */
+ tgt = (struct bnx2fc_rport *)&rp[1];
+
+ if (!(test_bit(BNX2FC_FLAG_ENABLED, &tgt->flags))) {
+ mutex_unlock(&hba->hba_mutex);
+ break;
+ }
+ clear_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
+
+ bnx2fc_upload_session(port, tgt);
+ hba->num_ofld_sess--;
+ BNX2FC_TGT_DBG(tgt, "UPLOAD num_ofld_sess = %d\n",
+ hba->num_ofld_sess);
+ /*
+ * Try to wake up the linkdown wait thread. If num_ofld_sess
+ * is 0, the waiting therad wakes up
+ */
+ if ((hba->wait_for_link_down) &&
+ (hba->num_ofld_sess == 0)) {
+ wake_up_interruptible(&hba->shutdown_wait);
+ }
+ if (test_bit(BNX2FC_FLAG_EXPL_LOGO, &tgt->flags)) {
+ printk(KERN_ERR PFX "Relogin to the tgt\n");
+ mutex_lock(&lport->disc.disc_mutex);
+ lport->tt.rport_login(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ }
+ mutex_unlock(&hba->hba_mutex);
+
+ break;
+
+ case RPORT_EV_NONE:
+ break;
+ }
+}
+
+/**
+ * bnx2fc_tgt_lookup() - Lookup a bnx2fc_rport by port_id
+ *
+ * @port: fcoe_port struct to lookup the target port on
+ * @port_id: The remote port ID to look up
+ */
+struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
+ u32 port_id)
+{
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct bnx2fc_rport *tgt;
+ struct fc_rport_priv *rdata;
+ int i;
+
+ for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
+ tgt = hba->tgt_ofld_list[i];
+ if ((tgt) && (tgt->port == port)) {
+ rdata = tgt->rdata;
+ if (rdata->ids.port_id == port_id) {
+ if (rdata->rp_state != RPORT_ST_DELETE) {
+ BNX2FC_TGT_DBG(tgt, "rport "
+ "obtained\n");
+ return tgt;
+ } else {
+ BNX2FC_TGT_DBG(tgt, "rport 0x%x "
+ "is in DELETED state\n",
+ rdata->ids.port_id);
+ return NULL;
+ }
+ }
+ }
+ }
+ return NULL;
+}
+
+
+/**
+ * bnx2fc_alloc_conn_id - allocates FCOE Connection id
+ *
+ * @hba: pointer to adapter structure
+ * @tgt: pointer to bnx2fc_rport structure
+ */
+static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt)
+{
+ u32 conn_id, next;
+
+ /* called with hba mutex held */
+
+ /*
+ * tgt_ofld_list access is synchronized using
+ * both hba mutex and hba lock. Atleast hba mutex or
+ * hba lock needs to be held for read access.
+ */
+
+ spin_lock_bh(&hba->hba_lock);
+ next = hba->next_conn_id;
+ conn_id = hba->next_conn_id++;
+ if (hba->next_conn_id == BNX2FC_NUM_MAX_SESS)
+ hba->next_conn_id = 0;
+
+ while (hba->tgt_ofld_list[conn_id] != NULL) {
+ conn_id++;
+ if (conn_id == BNX2FC_NUM_MAX_SESS)
+ conn_id = 0;
+
+ if (conn_id == next) {
+ /* No free conn_ids are available */
+ spin_unlock_bh(&hba->hba_lock);
+ return -1;
+ }
+ }
+ hba->tgt_ofld_list[conn_id] = tgt;
+ tgt->fcoe_conn_id = conn_id;
+ spin_unlock_bh(&hba->hba_lock);
+ return conn_id;
+}
+
+static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id)
+{
+ /* called with hba mutex held */
+ spin_lock_bh(&hba->hba_lock);
+ hba->tgt_ofld_list[conn_id] = NULL;
+ spin_unlock_bh(&hba->hba_lock);
+}
+
+/**
+ *bnx2fc_alloc_session_resc - Allocate qp resources for the session
+ *
+ */
+static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt)
+{
+ dma_addr_t page;
+ int num_pages;
+ u32 *pbl;
+
+ /* Allocate and map SQ */
+ tgt->sq_mem_size = tgt->max_sqes * BNX2FC_SQ_WQE_SIZE;
+ tgt->sq_mem_size = (tgt->sq_mem_size + (CNIC_PAGE_SIZE - 1)) &
+ CNIC_PAGE_MASK;
+
+ tgt->sq = dma_alloc_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
+ &tgt->sq_dma, GFP_KERNEL);
+ if (!tgt->sq) {
+ printk(KERN_ERR PFX "unable to allocate SQ memory %d\n",
+ tgt->sq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->sq, 0, tgt->sq_mem_size);
+
+ /* Allocate and map CQ */
+ tgt->cq_mem_size = tgt->max_cqes * BNX2FC_CQ_WQE_SIZE;
+ tgt->cq_mem_size = (tgt->cq_mem_size + (CNIC_PAGE_SIZE - 1)) &
+ CNIC_PAGE_MASK;
+
+ tgt->cq = dma_alloc_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
+ &tgt->cq_dma, GFP_KERNEL);
+ if (!tgt->cq) {
+ printk(KERN_ERR PFX "unable to allocate CQ memory %d\n",
+ tgt->cq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->cq, 0, tgt->cq_mem_size);
+
+ /* Allocate and map RQ and RQ PBL */
+ tgt->rq_mem_size = tgt->max_rqes * BNX2FC_RQ_WQE_SIZE;
+ tgt->rq_mem_size = (tgt->rq_mem_size + (CNIC_PAGE_SIZE - 1)) &
+ CNIC_PAGE_MASK;
+
+ tgt->rq = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
+ &tgt->rq_dma, GFP_KERNEL);
+ if (!tgt->rq) {
+ printk(KERN_ERR PFX "unable to allocate RQ memory %d\n",
+ tgt->rq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->rq, 0, tgt->rq_mem_size);
+
+ tgt->rq_pbl_size = (tgt->rq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *);
+ tgt->rq_pbl_size = (tgt->rq_pbl_size + (CNIC_PAGE_SIZE - 1)) &
+ CNIC_PAGE_MASK;
+
+ tgt->rq_pbl = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
+ &tgt->rq_pbl_dma, GFP_KERNEL);
+ if (!tgt->rq_pbl) {
+ printk(KERN_ERR PFX "unable to allocate RQ PBL %d\n",
+ tgt->rq_pbl_size);
+ goto mem_alloc_failure;
+ }
+
+ memset(tgt->rq_pbl, 0, tgt->rq_pbl_size);
+ num_pages = tgt->rq_mem_size / CNIC_PAGE_SIZE;
+ page = tgt->rq_dma;
+ pbl = (u32 *)tgt->rq_pbl;
+
+ while (num_pages--) {
+ *pbl = (u32)page;
+ pbl++;
+ *pbl = (u32)((u64)page >> 32);
+ pbl++;
+ page += CNIC_PAGE_SIZE;
+ }
+
+ /* Allocate and map XFERQ */
+ tgt->xferq_mem_size = tgt->max_sqes * BNX2FC_XFERQ_WQE_SIZE;
+ tgt->xferq_mem_size = (tgt->xferq_mem_size + (CNIC_PAGE_SIZE - 1)) &
+ CNIC_PAGE_MASK;
+
+ tgt->xferq = dma_alloc_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
+ &tgt->xferq_dma, GFP_KERNEL);
+ if (!tgt->xferq) {
+ printk(KERN_ERR PFX "unable to allocate XFERQ %d\n",
+ tgt->xferq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->xferq, 0, tgt->xferq_mem_size);
+
+ /* Allocate and map CONFQ & CONFQ PBL */
+ tgt->confq_mem_size = tgt->max_sqes * BNX2FC_CONFQ_WQE_SIZE;
+ tgt->confq_mem_size = (tgt->confq_mem_size + (CNIC_PAGE_SIZE - 1)) &
+ CNIC_PAGE_MASK;
+
+ tgt->confq = dma_alloc_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
+ &tgt->confq_dma, GFP_KERNEL);
+ if (!tgt->confq) {
+ printk(KERN_ERR PFX "unable to allocate CONFQ %d\n",
+ tgt->confq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->confq, 0, tgt->confq_mem_size);
+
+ tgt->confq_pbl_size =
+ (tgt->confq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *);
+ tgt->confq_pbl_size =
+ (tgt->confq_pbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK;
+
+ tgt->confq_pbl = dma_alloc_coherent(&hba->pcidev->dev,
+ tgt->confq_pbl_size,
+ &tgt->confq_pbl_dma, GFP_KERNEL);
+ if (!tgt->confq_pbl) {
+ printk(KERN_ERR PFX "unable to allocate CONFQ PBL %d\n",
+ tgt->confq_pbl_size);
+ goto mem_alloc_failure;
+ }
+
+ memset(tgt->confq_pbl, 0, tgt->confq_pbl_size);
+ num_pages = tgt->confq_mem_size / CNIC_PAGE_SIZE;
+ page = tgt->confq_dma;
+ pbl = (u32 *)tgt->confq_pbl;
+
+ while (num_pages--) {
+ *pbl = (u32)page;
+ pbl++;
+ *pbl = (u32)((u64)page >> 32);
+ pbl++;
+ page += CNIC_PAGE_SIZE;
+ }
+
+ /* Allocate and map ConnDB */
+ tgt->conn_db_mem_size = sizeof(struct fcoe_conn_db);
+
+ tgt->conn_db = dma_alloc_coherent(&hba->pcidev->dev,
+ tgt->conn_db_mem_size,
+ &tgt->conn_db_dma, GFP_KERNEL);
+ if (!tgt->conn_db) {
+ printk(KERN_ERR PFX "unable to allocate conn_db %d\n",
+ tgt->conn_db_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->conn_db, 0, tgt->conn_db_mem_size);
+
+
+ /* Allocate and map LCQ */
+ tgt->lcq_mem_size = (tgt->max_sqes + 8) * BNX2FC_SQ_WQE_SIZE;
+ tgt->lcq_mem_size = (tgt->lcq_mem_size + (CNIC_PAGE_SIZE - 1)) &
+ CNIC_PAGE_MASK;
+
+ tgt->lcq = dma_alloc_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
+ &tgt->lcq_dma, GFP_KERNEL);
+
+ if (!tgt->lcq) {
+ printk(KERN_ERR PFX "unable to allocate lcq %d\n",
+ tgt->lcq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->lcq, 0, tgt->lcq_mem_size);
+
+ tgt->conn_db->rq_prod = 0x8000;
+
+ return 0;
+
+mem_alloc_failure:
+ return -ENOMEM;
+}
+
+/**
+ * bnx2i_free_session_resc - free qp resources for the session
+ *
+ * @hba: adapter structure pointer
+ * @tgt: bnx2fc_rport structure pointer
+ *
+ * Free QP resources - SQ/RQ/CQ/XFERQ memory and PBL
+ */
+static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt)
+{
+ void __iomem *ctx_base_ptr;
+
+ BNX2FC_TGT_DBG(tgt, "Freeing up session resources\n");
+
+ spin_lock_bh(&tgt->cq_lock);
+ ctx_base_ptr = tgt->ctx_base;
+ tgt->ctx_base = NULL;
+
+ /* Free LCQ */
+ if (tgt->lcq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
+ tgt->lcq, tgt->lcq_dma);
+ tgt->lcq = NULL;
+ }
+ /* Free connDB */
+ if (tgt->conn_db) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->conn_db_mem_size,
+ tgt->conn_db, tgt->conn_db_dma);
+ tgt->conn_db = NULL;
+ }
+ /* Free confq and confq pbl */
+ if (tgt->confq_pbl) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->confq_pbl_size,
+ tgt->confq_pbl, tgt->confq_pbl_dma);
+ tgt->confq_pbl = NULL;
+ }
+ if (tgt->confq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
+ tgt->confq, tgt->confq_dma);
+ tgt->confq = NULL;
+ }
+ /* Free XFERQ */
+ if (tgt->xferq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
+ tgt->xferq, tgt->xferq_dma);
+ tgt->xferq = NULL;
+ }
+ /* Free RQ PBL and RQ */
+ if (tgt->rq_pbl) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
+ tgt->rq_pbl, tgt->rq_pbl_dma);
+ tgt->rq_pbl = NULL;
+ }
+ if (tgt->rq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
+ tgt->rq, tgt->rq_dma);
+ tgt->rq = NULL;
+ }
+ /* Free CQ */
+ if (tgt->cq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
+ tgt->cq, tgt->cq_dma);
+ tgt->cq = NULL;
+ }
+ /* Free SQ */
+ if (tgt->sq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
+ tgt->sq, tgt->sq_dma);
+ tgt->sq = NULL;
+ }
+ spin_unlock_bh(&tgt->cq_lock);
+
+ if (ctx_base_ptr)
+ iounmap(ctx_base_ptr);
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 04:32:45 +0000