diff options
Diffstat (limited to 'arch/s390/include/asm/qdio.h')
| -rw-r--r-- | arch/s390/include/asm/qdio.h | 279 |
1 files changed, 163 insertions, 116 deletions
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 402d6dcf0d2..d786c634e05 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -1,7 +1,5 @@ /* - * linux/include/asm-s390/qdio.h - * - * Copyright 2000,2008 IBM Corp. + * Copyright IBM Corp. 2000, 2008 * Author(s): Utz Bacher <utz.bacher@de.ibm.com> * Jan Glauber <jang@linux.vnet.ibm.com> * @@ -13,7 +11,8 @@ #include <asm/cio.h> #include <asm/ccwdev.h> -#define QDIO_MAX_QUEUES_PER_IRQ 32 +/* only use 4 queues to save some cachelines */ +#define QDIO_MAX_QUEUES_PER_IRQ 4 #define QDIO_MAX_BUFFERS_PER_Q 128 #define QDIO_MAX_BUFFERS_MASK (QDIO_MAX_BUFFERS_PER_Q - 1) #define QDIO_MAX_ELEMENTS_PER_BUFFER 16 @@ -45,6 +44,8 @@ struct qdesfmt0 { u32 : 16; } __attribute__ ((packed)); +#define QDR_AC_MULTI_BUFFER_ENABLE 0x01 + /** * struct qdr - queue description record (QDR) * @qfmt: queue format @@ -83,6 +84,7 @@ struct qdr { #define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40 #define QIB_RFLAGS_ENABLE_QEBSM 0x80 +#define QIB_RFLAGS_ENABLE_DATA_DIV 0x02 /** * struct qib - queue information block (QIB) @@ -121,6 +123,40 @@ struct slibe { }; /** + * struct qaob - queue asynchronous operation block + * @res0: reserved parameters + * @res1: reserved parameter + * @res2: reserved parameter + * @res3: reserved parameter + * @aorc: asynchronous operation return code + * @flags: internal flags + * @cbtbs: control block type + * @sb_count: number of storage blocks + * @sba: storage block element addresses + * @dcount: size of storage block elements + * @user0: user defineable value + * @res4: reserved paramater + * @user1: user defineable value + * @user2: user defineable value + */ +struct qaob { + u64 res0[6]; + u8 res1; + u8 res2; + u8 res3; + u8 aorc; + u8 flags; + u16 cbtbs; + u8 sb_count; + u64 sba[QDIO_MAX_ELEMENTS_PER_BUFFER]; + u16 dcount[QDIO_MAX_ELEMENTS_PER_BUFFER]; + u64 user0; + u64 res4[2]; + u64 user1; + u64 user2; +} __attribute__ ((packed, aligned(256))); + +/** * struct slib - storage list information block (SLIB) * @nsliba: next SLIB address (if any) * @sla: SL address @@ -137,110 +173,47 @@ struct slib { struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q]; } __attribute__ ((packed, aligned(2048))); -/** - * struct sbal_flags - storage block address list flags - * @last: last entry - * @cont: contiguous storage - * @frag: fragmentation - */ -struct sbal_flags { - u8 : 1; - u8 last : 1; - u8 cont : 1; - u8 : 1; - u8 frag : 2; - u8 : 2; -} __attribute__ ((packed)); - -#define SBAL_FLAGS_FIRST_FRAG 0x04000000UL -#define SBAL_FLAGS_MIDDLE_FRAG 0x08000000UL -#define SBAL_FLAGS_LAST_FRAG 0x0c000000UL -#define SBAL_FLAGS_LAST_ENTRY 0x40000000UL -#define SBAL_FLAGS_CONTIGUOUS 0x20000000UL +#define SBAL_EFLAGS_LAST_ENTRY 0x40 +#define SBAL_EFLAGS_CONTIGUOUS 0x20 +#define SBAL_EFLAGS_FIRST_FRAG 0x04 +#define SBAL_EFLAGS_MIDDLE_FRAG 0x08 +#define SBAL_EFLAGS_LAST_FRAG 0x0c +#define SBAL_EFLAGS_MASK 0x6f -#define SBAL_FLAGS0_DATA_CONTINUATION 0x20UL +#define SBAL_SFLAGS0_PCI_REQ 0x40 +#define SBAL_SFLAGS0_DATA_CONTINUATION 0x20 /* Awesome OpenFCP extensions */ -#define SBAL_FLAGS0_TYPE_STATUS 0x00UL -#define SBAL_FLAGS0_TYPE_WRITE 0x08UL -#define SBAL_FLAGS0_TYPE_READ 0x10UL -#define SBAL_FLAGS0_TYPE_WRITE_READ 0x18UL -#define SBAL_FLAGS0_MORE_SBALS 0x04UL -#define SBAL_FLAGS0_COMMAND 0x02UL -#define SBAL_FLAGS0_LAST_SBAL 0x00UL -#define SBAL_FLAGS0_ONLY_SBAL SBAL_FLAGS0_COMMAND -#define SBAL_FLAGS0_MIDDLE_SBAL SBAL_FLAGS0_MORE_SBALS -#define SBAL_FLAGS0_FIRST_SBAL SBAL_FLAGS0_MORE_SBALS | SBAL_FLAGS0_COMMAND -#define SBAL_FLAGS0_PCI 0x40 - -/** - * struct sbal_sbalf_0 - sbal flags for sbale 0 - * @pci: PCI indicator - * @cont: data continuation - * @sbtype: storage-block type (FCP) - */ -struct sbal_sbalf_0 { - u8 : 1; - u8 pci : 1; - u8 cont : 1; - u8 sbtype : 2; - u8 : 3; -} __attribute__ ((packed)); - -/** - * struct sbal_sbalf_1 - sbal flags for sbale 1 - * @key: storage key - */ -struct sbal_sbalf_1 { - u8 : 4; - u8 key : 4; -} __attribute__ ((packed)); - -/** - * struct sbal_sbalf_14 - sbal flags for sbale 14 - * @erridx: error index - */ -struct sbal_sbalf_14 { - u8 : 4; - u8 erridx : 4; -} __attribute__ ((packed)); - -/** - * struct sbal_sbalf_15 - sbal flags for sbale 15 - * @reason: reason for error state - */ -struct sbal_sbalf_15 { - u8 reason; -} __attribute__ ((packed)); - -/** - * union sbal_sbalf - storage block address list flags - * @i0: sbalf0 - * @i1: sbalf1 - * @i14: sbalf14 - * @i15: sblaf15 - * @value: raw value - */ -union sbal_sbalf { - struct sbal_sbalf_0 i0; - struct sbal_sbalf_1 i1; - struct sbal_sbalf_14 i14; - struct sbal_sbalf_15 i15; - u8 value; -}; +#define SBAL_SFLAGS0_TYPE_STATUS 0x00 +#define SBAL_SFLAGS0_TYPE_WRITE 0x08 +#define SBAL_SFLAGS0_TYPE_READ 0x10 +#define SBAL_SFLAGS0_TYPE_WRITE_READ 0x18 +#define SBAL_SFLAGS0_MORE_SBALS 0x04 +#define SBAL_SFLAGS0_COMMAND 0x02 +#define SBAL_SFLAGS0_LAST_SBAL 0x00 +#define SBAL_SFLAGS0_ONLY_SBAL SBAL_SFLAGS0_COMMAND +#define SBAL_SFLAGS0_MIDDLE_SBAL SBAL_SFLAGS0_MORE_SBALS +#define SBAL_SFLAGS0_FIRST_SBAL (SBAL_SFLAGS0_MORE_SBALS | SBAL_SFLAGS0_COMMAND) /** * struct qdio_buffer_element - SBAL entry - * @flags: flags + * @eflags: SBAL entry flags + * @scount: SBAL count + * @sflags: whole SBAL flags * @length: length * @addr: address */ struct qdio_buffer_element { - u32 flags; + u8 eflags; + /* private: */ + u8 res1; + /* public: */ + u8 scount; + u8 sflags; u32 length; #ifdef CONFIG_32BIT /* private: */ - void *reserved; + void *res2; /* public: */ #endif void *addr; @@ -283,6 +256,43 @@ struct slsb { u8 val[QDIO_MAX_BUFFERS_PER_Q]; } __attribute__ ((packed, aligned(256))); +/** + * struct qdio_outbuf_state - SBAL related asynchronous operation information + * (for communication with upper layer programs) + * (only required for use with completion queues) + * @flags: flags indicating state of buffer + * @aob: pointer to QAOB used for the particular SBAL + * @user: pointer to upper layer program's state information related to SBAL + * (stored in user1 data of QAOB) + */ +struct qdio_outbuf_state { + u8 flags; + struct qaob *aob; + void *user; +}; + +#define QDIO_OUTBUF_STATE_FLAG_NONE 0x00 +#define QDIO_OUTBUF_STATE_FLAG_PENDING 0x01 + +#define CHSC_AC1_INITIATE_INPUTQ 0x80 + + +/* qdio adapter-characteristics-1 flag */ +#define AC1_SIGA_INPUT_NEEDED 0x40 /* process input queues */ +#define AC1_SIGA_OUTPUT_NEEDED 0x20 /* process output queues */ +#define AC1_SIGA_SYNC_NEEDED 0x10 /* ask hypervisor to sync */ +#define AC1_AUTOMATIC_SYNC_ON_THININT 0x08 /* set by hypervisor */ +#define AC1_AUTOMATIC_SYNC_ON_OUT_PCI 0x04 /* set by hypervisor */ +#define AC1_SC_QEBSM_AVAILABLE 0x02 /* available for subchannel */ +#define AC1_SC_QEBSM_ENABLED 0x01 /* enabled for subchannel */ + +#define CHSC_AC2_MULTI_BUFFER_AVAILABLE 0x0080 +#define CHSC_AC2_MULTI_BUFFER_ENABLED 0x0040 +#define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010 +#define CHSC_AC2_DATA_DIV_ENABLED 0x0002 + +#define CHSC_AC3_FORMAT2_CQ_AVAILABLE 0x8000 + struct qdio_ssqd_desc { u8 flags; u8:8; @@ -301,8 +311,7 @@ struct qdio_ssqd_desc { u64 sch_token; u8 mro; u8 mri; - u8:8; - u8 sbalic; + u16 qdioac3; u16:16; u8:8; u8 mmwc; @@ -314,57 +323,89 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int, int, int, unsigned long); /* qdio errors reported to the upper-layer program */ -#define QDIO_ERROR_SIGA_TARGET 0x02 -#define QDIO_ERROR_SIGA_ACCESS_EXCEPTION 0x10 -#define QDIO_ERROR_SIGA_BUSY 0x20 -#define QDIO_ERROR_ACTIVATE_CHECK_CONDITION 0x40 -#define QDIO_ERROR_SLSB_STATE 0x80 +#define QDIO_ERROR_ACTIVATE 0x0001 +#define QDIO_ERROR_GET_BUF_STATE 0x0002 +#define QDIO_ERROR_SET_BUF_STATE 0x0004 +#define QDIO_ERROR_SLSB_STATE 0x0100 -/* for qdio_initialize */ -#define QDIO_INBOUND_0COPY_SBALS 0x01 -#define QDIO_OUTBOUND_0COPY_SBALS 0x02 -#define QDIO_USE_OUTBOUND_PCIS 0x04 +#define QDIO_ERROR_FATAL 0x00ff +#define QDIO_ERROR_TEMPORARY 0xff00 /* for qdio_cleanup */ #define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01 #define QDIO_FLAG_CLEANUP_USING_HALT 0x02 /** - * struct qdio_initialize - qdio initalization data + * struct qdio_initialize - qdio initialization data * @cdev: associated ccw device * @q_format: queue format * @adapter_name: name for the adapter * @qib_param_field_format: format for qib_parm_field * @qib_param_field: pointer to 128 bytes or NULL, if no param field + * @qib_rflags: rflags to set * @input_slib_elements: pointer to no_input_qs * 128 words of data or NULL * @output_slib_elements: pointer to no_output_qs * 128 words of data or NULL * @no_input_qs: number of input queues * @no_output_qs: number of output queues * @input_handler: handler to be called for input queues * @output_handler: handler to be called for output queues + * @queue_start_poll_array: polling handlers (one per input queue or NULL) * @int_parm: interruption parameter - * @flags: initialization flags * @input_sbal_addr_array: address of no_input_qs * 128 pointers * @output_sbal_addr_array: address of no_output_qs * 128 pointers + * @output_sbal_state_array: no_output_qs * 128 state info (for CQ or NULL) */ struct qdio_initialize { struct ccw_device *cdev; unsigned char q_format; + unsigned char qdr_ac; unsigned char adapter_name[8]; unsigned int qib_param_field_format; unsigned char *qib_param_field; + unsigned char qib_rflags; unsigned long *input_slib_elements; unsigned long *output_slib_elements; unsigned int no_input_qs; unsigned int no_output_qs; qdio_handler_t *input_handler; qdio_handler_t *output_handler; + void (**queue_start_poll_array) (struct ccw_device *, int, + unsigned long); + int scan_threshold; unsigned long int_parm; - unsigned long flags; void **input_sbal_addr_array; void **output_sbal_addr_array; + struct qdio_outbuf_state *output_sbal_state_array; }; +/** + * enum qdio_brinfo_entry_type - type of address entry for qdio_brinfo_desc() + * @l3_ipv6_addr: entry contains IPv6 address + * @l3_ipv4_addr: entry contains IPv4 address + * @l2_addr_lnid: entry contains MAC address and VLAN ID + */ +enum qdio_brinfo_entry_type {l3_ipv6_addr, l3_ipv4_addr, l2_addr_lnid}; + +/** + * struct qdio_brinfo_entry_XXX - Address entry for qdio_brinfo_desc() + * @nit: Network interface token + * @addr: Address of one of the three types + * + * The struct is passed to the callback function by qdio_brinfo_desc() + */ +struct qdio_brinfo_entry_l3_ipv6 { + u64 nit; + struct { unsigned char _s6_addr[16]; } addr; +} __packed; +struct qdio_brinfo_entry_l3_ipv4 { + u64 nit; + struct { uint32_t _s_addr; } addr; +} __packed; +struct qdio_brinfo_entry_l2 { + u64 nit; + struct { u8 mac[6]; u16 lnid; } addr_lnid; +} __packed; + #define QDIO_STATE_INACTIVE 0x00000002 /* after qdio_cleanup */ #define QDIO_STATE_ESTABLISHED 0x00000004 /* after qdio_establish */ #define QDIO_STATE_ACTIVE 0x00000008 /* after qdio_activate */ @@ -374,16 +415,22 @@ struct qdio_initialize { #define QDIO_FLAG_SYNC_OUTPUT 0x02 #define QDIO_FLAG_PCI_OUT 0x10 -extern int qdio_initialize(struct qdio_initialize *); extern int qdio_allocate(struct qdio_initialize *); extern int qdio_establish(struct qdio_initialize *); extern int qdio_activate(struct ccw_device *); - -extern int do_QDIO(struct ccw_device *cdev, unsigned int callflags, - int q_nr, int bufnr, int count); -extern int qdio_cleanup(struct ccw_device*, int); -extern int qdio_shutdown(struct ccw_device*, int); +extern void qdio_release_aob(struct qaob *); +extern int do_QDIO(struct ccw_device *, unsigned int, int, unsigned int, + unsigned int); +extern int qdio_start_irq(struct ccw_device *, int); +extern int qdio_stop_irq(struct ccw_device *, int); +extern int qdio_get_next_buffers(struct ccw_device *, int, int *, int *); +extern int qdio_shutdown(struct ccw_device *, int); extern int qdio_free(struct ccw_device *); -extern int qdio_get_ssqd_desc(struct ccw_device *dev, struct qdio_ssqd_desc*); +extern int qdio_get_ssqd_desc(struct ccw_device *, struct qdio_ssqd_desc *); +extern int qdio_pnso_brinfo(struct subchannel_id schid, + int cnc, u16 *response, + void (*cb)(void *priv, enum qdio_brinfo_entry_type type, + void *entry), + void *priv); #endif /* __QDIO_H__ */ |