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path: root/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
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Diffstat (limited to 'drivers/infiniband/hw/cxgb4/iw_cxgb4.h')
-rw-r--r--drivers/infiniband/hw/cxgb4/iw_cxgb4.h317
1 files changed, 271 insertions, 46 deletions
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
index 2fe19ec9ba6..361fff7a074 100644
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -35,7 +35,7 @@
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/idr.h>
-#include <linux/workqueue.h>
+#include <linux/completion.h>
#include <linux/netdevice.h>
#include <linux/sched.h>
#include <linux/pci.h>
@@ -45,7 +45,6 @@
#include <linux/kref.h>
#include <linux/timer.h>
#include <linux/io.h>
-#include <linux/kfifo.h>
#include <asm/byteorder.h>
@@ -53,6 +52,8 @@
#include <rdma/ib_verbs.h>
#include <rdma/iw_cm.h>
+#include <rdma/rdma_netlink.h>
+#include <rdma/iw_portmap.h>
#include "cxgb4.h"
#include "cxgb4_uld.h"
@@ -79,13 +80,22 @@ static inline void *cplhdr(struct sk_buff *skb)
return skb->data;
}
+#define C4IW_ID_TABLE_F_RANDOM 1 /* Pseudo-randomize the id's returned */
+#define C4IW_ID_TABLE_F_EMPTY 2 /* Table is initially empty */
+
+struct c4iw_id_table {
+ u32 flags;
+ u32 start; /* logical minimal id */
+ u32 last; /* hint for find */
+ u32 max;
+ spinlock_t lock;
+ unsigned long *table;
+};
+
struct c4iw_resource {
- struct kfifo tpt_fifo;
- spinlock_t tpt_fifo_lock;
- struct kfifo qid_fifo;
- spinlock_t qid_fifo_lock;
- struct kfifo pdid_fifo;
- spinlock_t pdid_fifo_lock;
+ struct c4iw_id_table tpt_table;
+ struct c4iw_id_table qid_table;
+ struct c4iw_id_table pdid_table;
};
struct c4iw_qid_list {
@@ -101,6 +111,32 @@ struct c4iw_dev_ucontext {
enum c4iw_rdev_flags {
T4_FATAL_ERROR = (1<<0),
+ T4_STATUS_PAGE_DISABLED = (1<<1),
+};
+
+struct c4iw_stat {
+ u64 total;
+ u64 cur;
+ u64 max;
+ u64 fail;
+};
+
+struct c4iw_stats {
+ struct mutex lock;
+ struct c4iw_stat qid;
+ struct c4iw_stat pd;
+ struct c4iw_stat stag;
+ struct c4iw_stat pbl;
+ struct c4iw_stat rqt;
+ struct c4iw_stat ocqp;
+ u64 db_full;
+ u64 db_empty;
+ u64 db_drop;
+ u64 db_state_transitions;
+ u64 db_fc_interruptions;
+ u64 tcam_full;
+ u64 act_ofld_conn_fails;
+ u64 pas_ofld_conn_fails;
};
struct c4iw_rdev {
@@ -115,8 +151,12 @@ struct c4iw_rdev {
struct gen_pool *ocqp_pool;
u32 flags;
struct cxgb4_lld_info lldi;
+ unsigned long bar2_pa;
+ void __iomem *bar2_kva;
unsigned long oc_mw_pa;
void __iomem *oc_mw_kva;
+ struct c4iw_stats stats;
+ struct t4_dev_status_page *status_page;
};
static inline int c4iw_fatal_error(struct c4iw_rdev *rdev)
@@ -129,19 +169,23 @@ static inline int c4iw_num_stags(struct c4iw_rdev *rdev)
return min((int)T4_MAX_NUM_STAG, (int)(rdev->lldi.vr->stag.size >> 5));
}
-#define C4IW_WR_TO (10*HZ)
+#define C4IW_WR_TO (30*HZ)
struct c4iw_wr_wait {
- wait_queue_head_t wait;
- int done;
+ struct completion completion;
int ret;
};
static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
{
wr_waitp->ret = 0;
- wr_waitp->done = 0;
- init_waitqueue_head(&wr_waitp->wait);
+ init_completion(&wr_waitp->completion);
+}
+
+static inline void c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret)
+{
+ wr_waitp->ret = ret;
+ complete(&wr_waitp->completion);
}
static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
@@ -150,22 +194,33 @@ static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
const char *func)
{
unsigned to = C4IW_WR_TO;
- do {
+ int ret;
- wait_event_timeout(wr_waitp->wait, wr_waitp->done, to);
- if (!wr_waitp->done) {
+ do {
+ ret = wait_for_completion_timeout(&wr_waitp->completion, to);
+ if (!ret) {
printk(KERN_ERR MOD "%s - Device %s not responding - "
"tid %u qpid %u\n", func,
pci_name(rdev->lldi.pdev), hwtid, qpid);
+ if (c4iw_fatal_error(rdev)) {
+ wr_waitp->ret = -EIO;
+ break;
+ }
to = to << 2;
}
- } while (!wr_waitp->done);
+ } while (!ret);
if (wr_waitp->ret)
- printk(KERN_WARNING MOD "%s: FW reply %d tid %u qpid %u\n",
- pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid);
+ PDBG("%s: FW reply %d tid %u qpid %u\n",
+ pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid);
return wr_waitp->ret;
}
+enum db_state {
+ NORMAL = 0,
+ FLOW_CONTROL = 1,
+ RECOVERY = 2,
+ STOPPED = 3
+};
struct c4iw_dev {
struct ib_device ibdev;
@@ -175,10 +230,13 @@ struct c4iw_dev {
struct idr qpidr;
struct idr mmidr;
spinlock_t lock;
- struct list_head entry;
- struct delayed_work db_drop_task;
+ struct mutex db_mutex;
struct dentry *debugfs_root;
- u8 registered;
+ enum db_state db_state;
+ struct idr hwtid_idr;
+ struct idr atid_idr;
+ struct idr stid_idr;
+ struct list_head db_fc_list;
};
static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev)
@@ -206,29 +264,58 @@ static inline struct c4iw_mr *get_mhp(struct c4iw_dev *rhp, u32 mmid)
return idr_find(&rhp->mmidr, mmid);
}
-static inline int insert_handle(struct c4iw_dev *rhp, struct idr *idr,
- void *handle, u32 id)
+static inline int _insert_handle(struct c4iw_dev *rhp, struct idr *idr,
+ void *handle, u32 id, int lock)
{
int ret;
- int newid;
- do {
- if (!idr_pre_get(idr, GFP_KERNEL))
- return -ENOMEM;
+ if (lock) {
+ idr_preload(GFP_KERNEL);
spin_lock_irq(&rhp->lock);
- ret = idr_get_new_above(idr, handle, id, &newid);
- BUG_ON(newid != id);
+ }
+
+ ret = idr_alloc(idr, handle, id, id + 1, GFP_ATOMIC);
+
+ if (lock) {
spin_unlock_irq(&rhp->lock);
- } while (ret == -EAGAIN);
+ idr_preload_end();
+ }
- return ret;
+ BUG_ON(ret == -ENOSPC);
+ return ret < 0 ? ret : 0;
}
-static inline void remove_handle(struct c4iw_dev *rhp, struct idr *idr, u32 id)
+static inline int insert_handle(struct c4iw_dev *rhp, struct idr *idr,
+ void *handle, u32 id)
{
- spin_lock_irq(&rhp->lock);
+ return _insert_handle(rhp, idr, handle, id, 1);
+}
+
+static inline int insert_handle_nolock(struct c4iw_dev *rhp, struct idr *idr,
+ void *handle, u32 id)
+{
+ return _insert_handle(rhp, idr, handle, id, 0);
+}
+
+static inline void _remove_handle(struct c4iw_dev *rhp, struct idr *idr,
+ u32 id, int lock)
+{
+ if (lock)
+ spin_lock_irq(&rhp->lock);
idr_remove(idr, id);
- spin_unlock_irq(&rhp->lock);
+ if (lock)
+ spin_unlock_irq(&rhp->lock);
+}
+
+static inline void remove_handle(struct c4iw_dev *rhp, struct idr *idr, u32 id)
+{
+ _remove_handle(rhp, idr, id, 1);
+}
+
+static inline void remove_handle_nolock(struct c4iw_dev *rhp,
+ struct idr *idr, u32 id)
+{
+ _remove_handle(rhp, idr, id, 0);
}
struct c4iw_pd {
@@ -290,7 +377,7 @@ struct c4iw_fr_page_list {
DEFINE_DMA_UNMAP_ADDR(mapping);
dma_addr_t dma_addr;
struct c4iw_dev *dev;
- int size;
+ int pll_len;
};
static inline struct c4iw_fr_page_list *to_c4iw_fr_page_list(
@@ -304,6 +391,7 @@ struct c4iw_cq {
struct c4iw_dev *rhp;
struct t4_cq cq;
spinlock_t lock;
+ spinlock_t comp_handler_lock;
atomic_t refcnt;
wait_queue_head_t wait;
};
@@ -318,6 +406,7 @@ struct c4iw_mpa_attributes {
u8 recv_marker_enabled;
u8 xmit_marker_enabled;
u8 crc_enabled;
+ u8 enhanced_rdma_conn;
u8 version;
u8 p2p_type;
};
@@ -344,10 +433,16 @@ struct c4iw_qp_attributes {
u8 is_terminate_local;
struct c4iw_mpa_attributes mpa_attr;
struct c4iw_ep *llp_stream_handle;
+ u8 layer_etype;
+ u8 ecode;
+ u16 sq_db_inc;
+ u16 rq_db_inc;
+ u8 send_term;
};
struct c4iw_qp {
struct ib_qp ibqp;
+ struct list_head db_fc_entry;
struct c4iw_dev *rhp;
struct c4iw_ep *ep;
struct c4iw_qp_attributes attr;
@@ -357,6 +452,7 @@ struct c4iw_qp {
atomic_t refcnt;
wait_queue_head_t wait;
struct timer_list timer;
+ int sq_sig_all;
};
static inline struct c4iw_qp *to_c4iw_qp(struct ib_qp *ibqp)
@@ -418,6 +514,8 @@ static inline void insert_mmap(struct c4iw_ucontext *ucontext,
enum c4iw_qp_attr_mask {
C4IW_QP_ATTR_NEXT_STATE = 1 << 0,
+ C4IW_QP_ATTR_SQ_DB = 1<<1,
+ C4IW_QP_ATTR_RQ_DB = 1<<2,
C4IW_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
C4IW_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
C4IW_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
@@ -471,6 +569,23 @@ static inline int c4iw_convert_state(enum ib_qp_state ib_state)
}
}
+static inline int to_ib_qp_state(int c4iw_qp_state)
+{
+ switch (c4iw_qp_state) {
+ case C4IW_QP_STATE_IDLE:
+ return IB_QPS_INIT;
+ case C4IW_QP_STATE_RTS:
+ return IB_QPS_RTS;
+ case C4IW_QP_STATE_CLOSING:
+ return IB_QPS_SQD;
+ case C4IW_QP_STATE_TERMINATE:
+ return IB_QPS_SQE;
+ case C4IW_QP_STATE_ERROR:
+ return IB_QPS_ERR;
+ }
+ return IB_QPS_ERR;
+}
+
static inline u32 c4iw_ib_to_tpt_access(int a)
{
return (a & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
@@ -496,11 +611,18 @@ enum c4iw_mmid_state {
#define MPA_KEY_REP "MPA ID Rep Frame"
#define MPA_MAX_PRIVATE_DATA 256
+#define MPA_ENHANCED_RDMA_CONN 0x10
#define MPA_REJECT 0x20
#define MPA_CRC 0x40
#define MPA_MARKERS 0x80
#define MPA_FLAGS_MASK 0xE0
+#define MPA_V2_PEER2PEER_MODEL 0x8000
+#define MPA_V2_ZERO_LEN_FPDU_RTR 0x4000
+#define MPA_V2_RDMA_WRITE_RTR 0x8000
+#define MPA_V2_RDMA_READ_RTR 0x4000
+#define MPA_V2_IRD_ORD_MASK 0x3FFF
+
#define c4iw_put_ep(ep) { \
PDBG("put_ep (via %s:%u) ep %p refcnt %d\n", __func__, __LINE__, \
ep, atomic_read(&((ep)->kref.refcount))); \
@@ -523,6 +645,11 @@ struct mpa_message {
u8 private_data[0];
};
+struct mpa_v2_conn_params {
+ __be16 ird;
+ __be16 ord;
+};
+
struct terminate_message {
u8 layer_etype;
u8 ecode;
@@ -575,7 +702,10 @@ enum c4iw_ddp_ecodes {
enum c4iw_mpa_ecodes {
MPA_CRC_ERR = 0x02,
- MPA_MARKER_ERR = 0x03
+ MPA_MARKER_ERR = 0x03,
+ MPA_LOCAL_CATA = 0x05,
+ MPA_INSUFF_IRD = 0x06,
+ MPA_NOMATCH_RTR = 0x07,
};
enum c4iw_ep_state {
@@ -598,6 +728,34 @@ enum c4iw_ep_flags {
ABORT_REQ_IN_PROGRESS = 1,
RELEASE_RESOURCES = 2,
CLOSE_SENT = 3,
+ TIMEOUT = 4,
+ QP_REFERENCED = 5,
+ RELEASE_MAPINFO = 6,
+};
+
+enum c4iw_ep_history {
+ ACT_OPEN_REQ = 0,
+ ACT_OFLD_CONN = 1,
+ ACT_OPEN_RPL = 2,
+ ACT_ESTAB = 3,
+ PASS_ACCEPT_REQ = 4,
+ PASS_ESTAB = 5,
+ ABORT_UPCALL = 6,
+ ESTAB_UPCALL = 7,
+ CLOSE_UPCALL = 8,
+ ULP_ACCEPT = 9,
+ ULP_REJECT = 10,
+ TIMEDOUT = 11,
+ PEER_ABORT = 12,
+ PEER_CLOSE = 13,
+ CONNREQ_UPCALL = 14,
+ ABORT_CONN = 15,
+ DISCONN_UPCALL = 16,
+ EP_DISC_CLOSE = 17,
+ EP_DISC_ABORT = 18,
+ CONN_RPL_UPCALL = 19,
+ ACT_RETRY_NOMEM = 20,
+ ACT_RETRY_INUSE = 21
};
struct c4iw_ep_common {
@@ -607,10 +765,13 @@ struct c4iw_ep_common {
enum c4iw_ep_state state;
struct kref kref;
struct mutex mutex;
- struct sockaddr_in local_addr;
- struct sockaddr_in remote_addr;
+ struct sockaddr_storage local_addr;
+ struct sockaddr_storage remote_addr;
+ struct sockaddr_storage mapped_local_addr;
+ struct sockaddr_storage mapped_remote_addr;
struct c4iw_wr_wait wr_wait;
unsigned long flags;
+ unsigned long history;
};
struct c4iw_listen_ep {
@@ -646,8 +807,52 @@ struct c4iw_ep {
u16 txq_idx;
u16 ctrlq_idx;
u8 tos;
+ u8 retry_with_mpa_v1;
+ u8 tried_with_mpa_v1;
+ unsigned int retry_count;
+ int snd_win;
+ int rcv_win;
};
+static inline void print_addr(struct c4iw_ep_common *epc, const char *func,
+ const char *msg)
+{
+
+#define SINA(a) (&(((struct sockaddr_in *)(a))->sin_addr.s_addr))
+#define SINP(a) ntohs(((struct sockaddr_in *)(a))->sin_port)
+#define SIN6A(a) (&(((struct sockaddr_in6 *)(a))->sin6_addr))
+#define SIN6P(a) ntohs(((struct sockaddr_in6 *)(a))->sin6_port)
+
+ if (c4iw_debug) {
+ switch (epc->local_addr.ss_family) {
+ case AF_INET:
+ PDBG("%s %s %pI4:%u/%u <-> %pI4:%u/%u\n",
+ func, msg, SINA(&epc->local_addr),
+ SINP(&epc->local_addr),
+ SINP(&epc->mapped_local_addr),
+ SINA(&epc->remote_addr),
+ SINP(&epc->remote_addr),
+ SINP(&epc->mapped_remote_addr));
+ break;
+ case AF_INET6:
+ PDBG("%s %s %pI6:%u/%u <-> %pI6:%u/%u\n",
+ func, msg, SIN6A(&epc->local_addr),
+ SIN6P(&epc->local_addr),
+ SIN6P(&epc->mapped_local_addr),
+ SIN6A(&epc->remote_addr),
+ SIN6P(&epc->remote_addr),
+ SIN6P(&epc->mapped_remote_addr));
+ break;
+ default:
+ break;
+ }
+ }
+#undef SINA
+#undef SINP
+#undef SIN6A
+#undef SIN6P
+}
+
static inline struct c4iw_ep *to_ep(struct iw_cm_id *cm_id)
{
return cm_id->provider_data;
@@ -667,14 +872,29 @@ static inline int compute_wscale(int win)
return wscale;
}
+static inline int ocqp_supported(const struct cxgb4_lld_info *infop)
+{
+#if defined(__i386__) || defined(__x86_64__) || defined(CONFIG_PPC64)
+ return infop->vr->ocq.size > 0;
+#else
+ return 0;
+#endif
+}
+
+u32 c4iw_id_alloc(struct c4iw_id_table *alloc);
+void c4iw_id_free(struct c4iw_id_table *alloc, u32 obj);
+int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num,
+ u32 reserved, u32 flags);
+void c4iw_id_table_free(struct c4iw_id_table *alloc);
+
typedef int (*c4iw_handler_func)(struct c4iw_dev *dev, struct sk_buff *skb);
int c4iw_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new,
struct l2t_entry *l2t);
void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qpid,
struct c4iw_dev_ucontext *uctx);
-u32 c4iw_get_resource(struct kfifo *fifo, spinlock_t *lock);
-void c4iw_put_resource(struct kfifo *fifo, u32 entry, spinlock_t *lock);
+u32 c4iw_get_resource(struct c4iw_id_table *id_table);
+void c4iw_put_resource(struct c4iw_id_table *id_table, u32 entry);
int c4iw_init_resource(struct c4iw_rdev *rdev, u32 nr_tpt, u32 nr_pdid);
int c4iw_init_ctrl_qp(struct c4iw_rdev *rdev);
int c4iw_pblpool_create(struct c4iw_rdev *rdev);
@@ -688,7 +908,7 @@ int c4iw_destroy_ctrl_qp(struct c4iw_rdev *rdev);
int c4iw_register_device(struct c4iw_dev *dev);
void c4iw_unregister_device(struct c4iw_dev *dev);
int __init c4iw_cm_init(void);
-void __exit c4iw_cm_term(void);
+void c4iw_cm_term(void);
void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev,
struct c4iw_dev_ucontext *uctx);
void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev,
@@ -713,7 +933,7 @@ struct ib_fast_reg_page_list *c4iw_alloc_fastreg_pbl(
int page_list_len);
struct ib_mr *c4iw_alloc_fast_reg_mr(struct ib_pd *pd, int pbl_depth);
int c4iw_dealloc_mw(struct ib_mw *mw);
-struct ib_mw *c4iw_alloc_mw(struct ib_pd *pd);
+struct ib_mw *c4iw_alloc_mw(struct ib_pd *pd, enum ib_mw_type type);
struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start,
u64 length, u64 virt, int acc,
struct ib_udata *udata);
@@ -743,6 +963,8 @@ struct ib_qp *c4iw_create_qp(struct ib_pd *pd,
struct ib_udata *udata);
int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
int attr_mask, struct ib_udata *udata);
+int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+ int attr_mask, struct ib_qp_init_attr *init_attr);
struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn);
u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size);
void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
@@ -751,12 +973,11 @@ void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
u32 c4iw_ocqp_pool_alloc(struct c4iw_rdev *rdev, int size);
void c4iw_ocqp_pool_free(struct c4iw_rdev *rdev, u32 addr, int size);
int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb);
-void c4iw_flush_hw_cq(struct t4_cq *cq);
+void c4iw_flush_hw_cq(struct c4iw_cq *chp);
void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count);
-void c4iw_count_scqes(struct t4_cq *cq, struct t4_wq *wq, int *count);
int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp);
int c4iw_flush_rq(struct t4_wq *wq, struct t4_cq *cq, int count);
-int c4iw_flush_sq(struct t4_wq *wq, struct t4_cq *cq, int count);
+int c4iw_flush_sq(struct c4iw_qp *qhp);
int c4iw_ev_handler(struct c4iw_dev *rnicp, u32 qid);
u16 c4iw_rqes_posted(struct c4iw_qp *qhp);
int c4iw_post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe);
@@ -771,5 +992,9 @@ void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe);
extern struct cxgb4_client t4c_client;
extern c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS];
extern int c4iw_max_read_depth;
+extern int db_fc_threshold;
+extern int db_coalescing_threshold;
+extern int use_dsgl;
+
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2026-01-09 04:05:37 +0000