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[SCSI] bfa: Introduced initiator based lun masking feature.

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- Added support to enable initiator based lun masking.
- Initiator based Lun masking works similar to zoning where
  initiator port is allowed to see only those LUNs which are
  configured to be seen.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Krishna Gudipati 2011-07-20 17:04:03 -07:00 committed by James Bottomley
parent 45c5dc1d3f
commit 83763d591b
7 changed files with 726 additions and 5 deletions
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16
drivers/scsi/bfa/bfa.h
View File

@ -382,6 +382,22 @@ int bfa_iocfc_get_pbc_vports(struct bfa_s *bfa,
#define bfa_get_fw_clock_res(__bfa) \
((__bfa)->iocfc.cfgrsp->fwcfg.fw_tick_res)
/*
* lun mask macros return NULL when min cfg is enabled and there is
* no memory allocated for lunmask.
*/
#define bfa_get_lun_mask(__bfa) \
((&(__bfa)->modules.dconf_mod)->min_cfg) ? NULL : \
(&(BFA_DCONF_MOD(__bfa)->dconf->lun_mask))
#define bfa_get_lun_mask_list(_bfa) \
((&(_bfa)->modules.dconf_mod)->min_cfg) ? NULL : \
(bfa_get_lun_mask(_bfa)->lun_list)
#define bfa_get_lun_mask_status(_bfa) \
(((&(_bfa)->modules.dconf_mod)->min_cfg) \
? BFA_LUNMASK_MINCFG : ((bfa_get_lun_mask(_bfa))->status))
void bfa_get_pciids(struct bfa_pciid_s **pciids, int *npciids);
void bfa_cfg_get_default(struct bfa_iocfc_cfg_s *cfg);
void bfa_cfg_get_min(struct bfa_iocfc_cfg_s *cfg);

30
drivers/scsi/bfa/bfa_defs_svc.h
View File

@ -672,6 +672,12 @@ struct bfa_itnim_iostats_s {
u32 tm_iocdowns; /* TM cleaned-up due to IOC down */
u32 tm_cleanups; /* TM cleanup requests */
u32 tm_cleanup_comps; /* TM cleanup completions */
u32 lm_lun_across_sg; /* LM lun is across sg data buf */
u32 lm_lun_not_sup; /* LM lun not supported */
u32 lm_rpl_data_changed; /* LM report-lun data changed */
u32 lm_wire_residue_changed; /* LM report-lun rsp residue changed */
u32 lm_small_buf_addresidue; /* LM buf smaller than reported cnt */
u32 lm_lun_not_rdy; /* LM lun not ready */
};
/* Modify char* port_stt[] in bfal_port.c if a new state was added */
@ -787,6 +793,28 @@ enum bfa_port_linkstate_rsn {
CEE_ISCSI_PRI_PFC_OFF = 42,
CEE_ISCSI_PRI_OVERLAP_FCOE_PRI = 43
};
#define MAX_LUN_MASK_CFG 16
/*
* Initially flash content may be fff. On making LUN mask enable and disable
* state chnage. when report lun command is being processed it goes from
* BFA_LUN_MASK_ACTIVE to BFA_LUN_MASK_FETCH and comes back to
* BFA_LUN_MASK_ACTIVE.
*/
enum bfa_ioim_lun_mask_state_s {
BFA_IOIM_LUN_MASK_INACTIVE = 0,
BFA_IOIM_LUN_MASK_ACTIVE = 1,
BFA_IOIM_LUN_MASK_FETCHED = 2,
};
enum bfa_lunmask_state_s {
BFA_LUNMASK_DISABLED = 0x00,
BFA_LUNMASK_ENABLED = 0x01,
BFA_LUNMASK_MINCFG = 0x02,
BFA_LUNMASK_UNINITIALIZED = 0xff,
};
#pragma pack(1)
/*
* LUN mask configuration
@ -794,7 +822,7 @@ enum bfa_port_linkstate_rsn {
struct bfa_lun_mask_s {
wwn_t lp_wwn;
wwn_t rp_wwn;
lun_t lun;
struct scsi_lun lun;
u8 ua;
u8 rsvd[3];
u16 rp_tag;

156
drivers/scsi/bfa/bfa_fc.h
View File

@ -21,7 +21,6 @@
#include "bfad_drv.h"
typedef u64 wwn_t;
typedef u64 lun_t;
#define WWN_NULL (0)
#define FC_SYMNAME_MAX 256 /* max name server symbolic name size */
@ -57,6 +56,161 @@ struct scsi_cdb_s {
#define SCSI_MAX_ALLOC_LEN 0xFF /* maximum allocarion length */
#define SCSI_SENSE_CUR_ERR 0x70
#define SCSI_SENSE_DEF_ERR 0x71
/*
* SCSI additional sense codes
*/
#define SCSI_ASC_LUN_NOT_READY 0x04
#define SCSI_ASC_LUN_NOT_SUPPORTED 0x25
#define SCSI_ASC_TOCC 0x3F
/*
* SCSI additional sense code qualifiers
*/
#define SCSI_ASCQ_MAN_INTR_REQ 0x03 /* manual intervention req */
#define SCSI_ASCQ_RL_DATA_CHANGED 0x0E /* report luns data changed */
/*
* Methods of reporting informational exceptions
*/
#define SCSI_MP_IEC_UNIT_ATTN 0x2 /* generate unit attention */
struct scsi_report_luns_data_s {
u32 lun_list_length; /* length of LUN list length */
u32 reserved;
struct scsi_lun lun[1]; /* first LUN in lun list */
};
struct scsi_inquiry_vendor_s {
u8 vendor_id[8];
};
struct scsi_inquiry_prodid_s {
u8 product_id[16];
};
struct scsi_inquiry_prodrev_s {
u8 product_rev[4];
};
struct scsi_inquiry_data_s {
#ifdef __BIG_ENDIAN
u8 peripheral_qual:3; /* peripheral qualifier */
u8 device_type:5; /* peripheral device type */
u8 rmb:1; /* removable medium bit */
u8 device_type_mod:7; /* device type modifier */
u8 version;
u8 aenc:1; /* async evt notification capability */
u8 trm_iop:1; /* terminate I/O process */
u8 norm_aca:1; /* normal ACA supported */
u8 hi_support:1; /* SCSI-3: supports REPORT LUNS */
u8 rsp_data_format:4;
u8 additional_len;
u8 sccs:1;
u8 reserved1:7;
u8 reserved2:1;
u8 enc_serv:1; /* enclosure service component */
u8 reserved3:1;
u8 multi_port:1; /* multi-port device */
u8 m_chngr:1; /* device in medium transport element */
u8 ack_req_q:1; /* SIP specific bit */
u8 addr32:1; /* SIP specific bit */
u8 addr16:1; /* SIP specific bit */
u8 rel_adr:1; /* relative address */
u8 w_bus32:1;
u8 w_bus16:1;
u8 synchronous:1;
u8 linked_commands:1;
u8 trans_dis:1;
u8 cmd_queue:1; /* command queueing supported */
u8 soft_reset:1; /* soft reset alternative (VS) */
#else
u8 device_type:5; /* peripheral device type */
u8 peripheral_qual:3; /* peripheral qualifier */
u8 device_type_mod:7; /* device type modifier */
u8 rmb:1; /* removable medium bit */
u8 version;
u8 rsp_data_format:4;
u8 hi_support:1; /* SCSI-3: supports REPORT LUNS */
u8 norm_aca:1; /* normal ACA supported */
u8 terminate_iop:1;/* terminate I/O process */
u8 aenc:1; /* async evt notification capability */
u8 additional_len;
u8 reserved1:7;
u8 sccs:1;
u8 addr16:1; /* SIP specific bit */
u8 addr32:1; /* SIP specific bit */
u8 ack_req_q:1; /* SIP specific bit */
u8 m_chngr:1; /* device in medium transport element */
u8 multi_port:1; /* multi-port device */
u8 reserved3:1; /* TBD - Vendor Specific */
u8 enc_serv:1; /* enclosure service component */
u8 reserved2:1;
u8 soft_seset:1; /* soft reset alternative (VS) */
u8 cmd_queue:1; /* command queueing supported */
u8 trans_dis:1;
u8 linked_commands:1;
u8 synchronous:1;
u8 w_bus16:1;
u8 w_bus32:1;
u8 rel_adr:1; /* relative address */
#endif
struct scsi_inquiry_vendor_s vendor_id;
struct scsi_inquiry_prodid_s product_id;
struct scsi_inquiry_prodrev_s product_rev;
u8 vendor_specific[20];
u8 reserved4[40];
};
/*
* SCSI sense data format
*/
struct scsi_sense_s {
#ifdef __BIG_ENDIAN
u8 valid:1;
u8 rsp_code:7;
#else
u8 rsp_code:7;
u8 valid:1;
#endif
u8 seg_num;
#ifdef __BIG_ENDIAN
u8 file_mark:1;
u8 eom:1; /* end of media */
u8 ili:1; /* incorrect length indicator */
u8 reserved:1;
u8 sense_key:4;
#else
u8 sense_key:4;
u8 reserved:1;
u8 ili:1; /* incorrect length indicator */
u8 eom:1; /* end of media */
u8 file_mark:1;
#endif
u8 information[4]; /* device-type or cmd specific info */
u8 add_sense_length; /* additional sense length */
u8 command_info[4];/* command specific information */
u8 asc; /* additional sense code */
u8 ascq; /* additional sense code qualifier */
u8 fru_code; /* field replaceable unit code */
#ifdef __BIG_ENDIAN
u8 sksv:1; /* sense key specific valid */
u8 c_d:1; /* command/data bit */
u8 res1:2;
u8 bpv:1; /* bit pointer valid */
u8 bpointer:3; /* bit pointer */
#else
u8 bpointer:3; /* bit pointer */
u8 bpv:1; /* bit pointer valid */
u8 res1:2;
u8 c_d:1; /* command/data bit */
u8 sksv:1; /* sense key specific valid */
#endif
u8 fpointer[2]; /* field pointer */
};
/*
* Fibre Channel Header Structure (FCHS) definition
*/

469
drivers/scsi/bfa/bfa_fcpim.c
View File

@ -24,6 +24,9 @@ BFA_TRC_FILE(HAL, FCPIM);
* BFA ITNIM Related definitions
*/
static void bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim);
static bfa_boolean_t bfa_ioim_lm_proc_rpl_data(struct bfa_ioim_s *ioim);
static bfa_boolean_t bfa_ioim_lm_proc_inq_data(struct bfa_ioim_s *ioim);
static void bfa_ioim_lm_init(struct bfa_s *bfa);
#define BFA_ITNIM_FROM_TAG(_fcpim, _tag) \
(((_fcpim)->itnim_arr + ((_tag) & ((_fcpim)->num_itnims - 1))))
@ -57,6 +60,14 @@ static void bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim);
} \
} while (0)
#define bfa_ioim_rp_wwn(__ioim) \
(((struct bfa_fcs_rport_s *) \
(__ioim)->itnim->rport->rport_drv)->pwwn)
#define bfa_ioim_lp_wwn(__ioim) \
((BFA_LPS_FROM_TAG(BFA_LPS_MOD((__ioim)->bfa), \
(__ioim)->itnim->rport->rport_info.lp_tag))->pwwn) \
#define bfa_itnim_sler_cb(__itnim) do { \
if ((__itnim)->bfa->fcs) \
bfa_cb_itnim_sler((__itnim)->ditn); \
@ -66,6 +77,18 @@ static void bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim);
} \
} while (0)
enum bfa_ioim_lm_status {
BFA_IOIM_LM_PRESENT = 1,
BFA_IOIM_LM_LUN_NOT_SUP = 2,
BFA_IOIM_LM_RPL_DATA_CHANGED = 3,
BFA_IOIM_LM_LUN_NOT_RDY = 4,
};
enum bfa_ioim_lm_ua_status {
BFA_IOIM_LM_UA_RESET = 0,
BFA_IOIM_LM_UA_SET = 1,
};
/*
* itnim state machine event
*/
@ -122,6 +145,9 @@ enum bfa_ioim_event {
BFA_IOIM_SM_TMDONE = 16, /* IO cleanup from tskim */
BFA_IOIM_SM_HWFAIL = 17, /* IOC h/w failure event */
BFA_IOIM_SM_IOTOV = 18, /* ITN offline TOV */
BFA_IOIM_SM_LM_LUN_NOT_SUP = 19,/* lunmask lun not supported */
BFA_IOIM_SM_LM_RPL_DC = 20, /* lunmask report-lun data changed */
BFA_IOIM_SM_LM_LUN_NOT_RDY = 21,/* lunmask lun not ready */
};
@ -219,6 +245,9 @@ static void __bfa_cb_ioim_abort(void *cbarg, bfa_boolean_t complete);
static void __bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete);
static void __bfa_cb_ioim_pathtov(void *cbarg, bfa_boolean_t complete);
static bfa_boolean_t bfa_ioim_is_abortable(struct bfa_ioim_s *ioim);
static void __bfa_cb_ioim_lm_lun_not_sup(void *cbarg, bfa_boolean_t complete);
static void __bfa_cb_ioim_lm_rpl_dc(void *cbarg, bfa_boolean_t complete);
static void __bfa_cb_ioim_lm_lun_not_rdy(void *cbarg, bfa_boolean_t complete);
/*
* forward declaration of BFA IO state machine
@ -416,6 +445,12 @@ bfa_fcpim_add_stats(struct bfa_itnim_iostats_s *lstats,
bfa_fcpim_add_iostats(lstats, rstats, output_reqs);
bfa_fcpim_add_iostats(lstats, rstats, rd_throughput);
bfa_fcpim_add_iostats(lstats, rstats, wr_throughput);
bfa_fcpim_add_iostats(lstats, rstats, lm_lun_across_sg);
bfa_fcpim_add_iostats(lstats, rstats, lm_lun_not_sup);
bfa_fcpim_add_iostats(lstats, rstats, lm_rpl_data_changed);
bfa_fcpim_add_iostats(lstats, rstats, lm_wire_residue_changed);
bfa_fcpim_add_iostats(lstats, rstats, lm_small_buf_addresidue);
bfa_fcpim_add_iostats(lstats, rstats, lm_lun_not_rdy);
}
bfa_status_t
@ -1542,7 +1577,28 @@ bfa_ioim_sm_uninit(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
WARN_ON(!bfa_q_is_on_q(&ioim->itnim->pending_q, ioim));
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
__bfa_cb_ioim_abort, ioim);
__bfa_cb_ioim_abort, ioim);
break;
case BFA_IOIM_SM_LM_LUN_NOT_SUP:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_ioim_move_to_comp_q(ioim);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
__bfa_cb_ioim_lm_lun_not_sup, ioim);
break;
case BFA_IOIM_SM_LM_RPL_DC:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_ioim_move_to_comp_q(ioim);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
__bfa_cb_ioim_lm_rpl_dc, ioim);
break;
case BFA_IOIM_SM_LM_LUN_NOT_RDY:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_ioim_move_to_comp_q(ioim);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
__bfa_cb_ioim_lm_lun_not_rdy, ioim);
break;
default:
@ -2082,6 +2138,264 @@ bfa_ioim_sm_resfree(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
}
}
/*
* This is called from bfa_fcpim_start after the bfa_init() with flash read
* is complete by driver. now invalidate the stale content of lun mask
* like unit attention, rp tag and lp tag.
*/
static void
bfa_ioim_lm_init(struct bfa_s *bfa)
{
struct bfa_lun_mask_s *lunm_list;
int i;
if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG)
return;
lunm_list = bfa_get_lun_mask_list(bfa);
for (i = 0; i < MAX_LUN_MASK_CFG; i++) {
lunm_list[i].ua = BFA_IOIM_LM_UA_RESET;
lunm_list[i].lp_tag = BFA_LP_TAG_INVALID;
lunm_list[i].rp_tag = BFA_RPORT_TAG_INVALID;
}
}
/*
* Validate LUN for LUN masking
*/
static enum bfa_ioim_lm_status
bfa_ioim_lm_check(struct bfa_ioim_s *ioim, struct bfa_lps_s *lps,
struct bfa_rport_s *rp, struct scsi_lun lun)
{
u8 i;
struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(ioim->bfa);
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)ioim->dio;
struct scsi_cdb_s *cdb = (struct scsi_cdb_s *)cmnd->cmnd;
if ((cdb->scsi_cdb[0] == REPORT_LUNS) &&
(scsilun_to_int((struct scsi_lun *)&lun) == 0)) {
ioim->proc_rsp_data = bfa_ioim_lm_proc_rpl_data;
return BFA_IOIM_LM_PRESENT;
}
for (i = 0; i < MAX_LUN_MASK_CFG; i++) {
if (lun_list[i].state != BFA_IOIM_LUN_MASK_ACTIVE)
continue;
if ((scsilun_to_int((struct scsi_lun *)&lun_list[i].lun) ==
scsilun_to_int((struct scsi_lun *)&lun))
&& (rp->rport_tag == lun_list[i].rp_tag)
&& ((u8)ioim->itnim->rport->rport_info.lp_tag ==
lun_list[i].lp_tag)) {
bfa_trc(ioim->bfa, lun_list[i].rp_tag);
bfa_trc(ioim->bfa, lun_list[i].lp_tag);
bfa_trc(ioim->bfa, scsilun_to_int(
(struct scsi_lun *)&lun_list[i].lun));
if ((lun_list[i].ua == BFA_IOIM_LM_UA_SET) &&
((cdb->scsi_cdb[0] != INQUIRY) ||
(cdb->scsi_cdb[0] != REPORT_LUNS))) {
lun_list[i].ua = BFA_IOIM_LM_UA_RESET;
return BFA_IOIM_LM_RPL_DATA_CHANGED;
}
if (cdb->scsi_cdb[0] == REPORT_LUNS)
ioim->proc_rsp_data = bfa_ioim_lm_proc_rpl_data;
return BFA_IOIM_LM_PRESENT;
}
}
if ((cdb->scsi_cdb[0] == INQUIRY) &&
(scsilun_to_int((struct scsi_lun *)&lun) == 0)) {
ioim->proc_rsp_data = bfa_ioim_lm_proc_inq_data;
return BFA_IOIM_LM_PRESENT;
}
if (cdb->scsi_cdb[0] == TEST_UNIT_READY)
return BFA_IOIM_LM_LUN_NOT_RDY;
return BFA_IOIM_LM_LUN_NOT_SUP;
}
static bfa_boolean_t
bfa_ioim_lm_proc_rsp_data_dummy(struct bfa_ioim_s *ioim)
{
return BFA_TRUE;
}
static void
bfa_ioim_lm_fetch_lun(struct bfa_ioim_s *ioim, u8 *rl_data, int offset,
int buf_lun_cnt)
{
struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(ioim->bfa);
struct scsi_lun *lun_data = (struct scsi_lun *)(rl_data + offset);
struct scsi_lun lun;
int i, j;
bfa_trc(ioim->bfa, buf_lun_cnt);
for (j = 0; j < buf_lun_cnt; j++) {
lun = *((struct scsi_lun *)(lun_data + j));
for (i = 0; i < MAX_LUN_MASK_CFG; i++) {
if (lun_list[i].state != BFA_IOIM_LUN_MASK_ACTIVE)
continue;
if ((lun_list[i].rp_wwn == bfa_ioim_rp_wwn(ioim)) &&
(lun_list[i].lp_wwn == bfa_ioim_lp_wwn(ioim)) &&
(scsilun_to_int((struct scsi_lun *)&lun_list[i].lun)
== scsilun_to_int((struct scsi_lun *)&lun))) {
lun_list[i].state = BFA_IOIM_LUN_MASK_FETCHED;
break;
}
} /* next lun in mask DB */
} /* next lun in buf */
}
static int
bfa_ioim_lm_update_lun_sg(struct bfa_ioim_s *ioim, u32 *pgdlen,
struct scsi_report_luns_data_s *rl)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)ioim->dio;
struct scatterlist *sg = scsi_sglist(cmnd);
struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(ioim->bfa);
struct scsi_lun *prev_rl_data = NULL, *base_rl_data;
int i, j, sgeid, lun_fetched_cnt = 0, prev_sg_len = 0, base_count;
int lun_across_sg_bytes, bytes_from_next_buf;
u64 last_lun, temp_last_lun;
/* fetch luns from the first sg element */
bfa_ioim_lm_fetch_lun(ioim, (u8 *)(rl->lun), 0,
(sg_dma_len(sg) / sizeof(struct scsi_lun)) - 1);
/* fetch luns from multiple sg elements */
scsi_for_each_sg(cmnd, sg, scsi_sg_count(cmnd), sgeid) {
if (sgeid == 0) {
prev_sg_len = sg_dma_len(sg);
prev_rl_data = (struct scsi_lun *)
phys_to_virt(sg_dma_address(sg));
continue;
}
/* if the buf is having more data */
lun_across_sg_bytes = prev_sg_len % sizeof(struct scsi_lun);
if (lun_across_sg_bytes) {
bfa_trc(ioim->bfa, lun_across_sg_bytes);
bfa_stats(ioim->itnim, lm_lun_across_sg);
bytes_from_next_buf = sizeof(struct scsi_lun) -
lun_across_sg_bytes;
/* from next buf take higher bytes */
temp_last_lun = *((u64 *)
phys_to_virt(sg_dma_address(sg)));
last_lun |= temp_last_lun >>
(lun_across_sg_bytes * BITS_PER_BYTE);
/* from prev buf take higher bytes */
temp_last_lun = *((u64 *)(prev_rl_data +
(prev_sg_len - lun_across_sg_bytes)));
temp_last_lun >>= bytes_from_next_buf * BITS_PER_BYTE;
last_lun = last_lun | (temp_last_lun <<
(bytes_from_next_buf * BITS_PER_BYTE));
bfa_ioim_lm_fetch_lun(ioim, (u8 *)&last_lun, 0, 1);
} else
bytes_from_next_buf = 0;
*pgdlen += sg_dma_len(sg);
prev_sg_len = sg_dma_len(sg);
prev_rl_data = (struct scsi_lun *)
phys_to_virt(sg_dma_address(sg));
bfa_ioim_lm_fetch_lun(ioim, (u8 *)prev_rl_data,
bytes_from_next_buf,
sg_dma_len(sg) / sizeof(struct scsi_lun));
}
/* update the report luns data - based on fetched luns */
sg = scsi_sglist(cmnd);
base_rl_data = (struct scsi_lun *)rl->lun;
base_count = (sg_dma_len(sg) / sizeof(struct scsi_lun)) - 1;
for (i = 0, j = 0; i < MAX_LUN_MASK_CFG; i++) {
if (lun_list[i].state == BFA_IOIM_LUN_MASK_FETCHED) {
base_rl_data[j] = lun_list[i].lun;
lun_list[i].state = BFA_IOIM_LUN_MASK_ACTIVE;
j++;
lun_fetched_cnt++;
}
if (j > base_count) {
j = 0;
sg = sg_next(sg);
base_rl_data = (struct scsi_lun *)
phys_to_virt(sg_dma_address(sg));
base_count = sg_dma_len(sg) / sizeof(struct scsi_lun);
}
}
bfa_trc(ioim->bfa, lun_fetched_cnt);
return lun_fetched_cnt;
}
static bfa_boolean_t
bfa_ioim_lm_proc_inq_data(struct bfa_ioim_s *ioim)
{
struct scsi_inquiry_data_s *inq;
struct scatterlist *sg = scsi_sglist((struct scsi_cmnd *)ioim->dio);
ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy;
inq = (struct scsi_inquiry_data_s *)phys_to_virt(sg_dma_address(sg));
bfa_trc(ioim->bfa, inq->device_type);
inq->peripheral_qual = SCSI_INQ_PQ_NOT_CON;
return 0;
}
static bfa_boolean_t
bfa_ioim_lm_proc_rpl_data(struct bfa_ioim_s *ioim)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)ioim->dio;
struct scatterlist *sg = scsi_sglist(cmnd);
struct bfi_ioim_rsp_s *m;
struct scsi_report_luns_data_s *rl = NULL;
int lun_count = 0, lun_fetched_cnt = 0;
u32 residue, pgdlen = 0;
ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy;
if (bfa_get_lun_mask_status(ioim->bfa) != BFA_LUNMASK_ENABLED)
return BFA_TRUE;
m = (struct bfi_ioim_rsp_s *) &ioim->iosp->comp_rspmsg;
if (m->scsi_status == SCSI_STATUS_CHECK_CONDITION)
return BFA_TRUE;
pgdlen = sg_dma_len(sg);
bfa_trc(ioim->bfa, pgdlen);
rl = (struct scsi_report_luns_data_s *)phys_to_virt(sg_dma_address(sg));
lun_count = cpu_to_be32(rl->lun_list_length) / sizeof(struct scsi_lun);
lun_fetched_cnt = bfa_ioim_lm_update_lun_sg(ioim, &pgdlen, rl);
if (lun_count == lun_fetched_cnt)
return BFA_TRUE;
bfa_trc(ioim->bfa, lun_count);
bfa_trc(ioim->bfa, lun_fetched_cnt);
bfa_trc(ioim->bfa, be32_to_cpu(rl->lun_list_length));
if (be32_to_cpu(rl->lun_list_length) <= pgdlen)
rl->lun_list_length = be32_to_cpu(lun_fetched_cnt) *
sizeof(struct scsi_lun);
else
bfa_stats(ioim->itnim, lm_small_buf_addresidue);
bfa_trc(ioim->bfa, be32_to_cpu(rl->lun_list_length));
bfa_trc(ioim->bfa, be32_to_cpu(m->residue));
residue = be32_to_cpu(m->residue);
residue += (lun_count - lun_fetched_cnt) * sizeof(struct scsi_lun);
bfa_stats(ioim->itnim, lm_wire_residue_changed);
m->residue = be32_to_cpu(residue);
bfa_trc(ioim->bfa, ioim->nsges);
return BFA_FALSE;
}
static void
__bfa_cb_ioim_good_comp(void *cbarg, bfa_boolean_t complete)
@ -2140,6 +2454,105 @@ __bfa_cb_ioim_comp(void *cbarg, bfa_boolean_t complete)
m->scsi_status, sns_len, snsinfo, residue);
}
static void
__bfa_cb_ioim_lm_lun_not_sup(void *cbarg, bfa_boolean_t complete)
{
struct bfa_ioim_s *ioim = cbarg;
int sns_len = 0xD;
u32 residue = scsi_bufflen((struct scsi_cmnd *)ioim->dio);
struct scsi_sense_s *snsinfo;
if (!complete) {
bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB);
return;
}
snsinfo = (struct scsi_sense_s *)BFA_SNSINFO_FROM_TAG(
ioim->fcpim->fcp, ioim->iotag);
snsinfo->rsp_code = SCSI_SENSE_CUR_ERR;
snsinfo->add_sense_length = 0xa;
snsinfo->asc = SCSI_ASC_LUN_NOT_SUPPORTED;
snsinfo->sense_key = ILLEGAL_REQUEST;
bfa_trc(ioim->bfa, residue);
bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_OK,
SCSI_STATUS_CHECK_CONDITION, sns_len,
(u8 *)snsinfo, residue);
}
static void
__bfa_cb_ioim_lm_rpl_dc(void *cbarg, bfa_boolean_t complete)
{
struct bfa_ioim_s *ioim = cbarg;
int sns_len = 0xD;
u32 residue = scsi_bufflen((struct scsi_cmnd *)ioim->dio);
struct scsi_sense_s *snsinfo;
if (!complete) {
bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB);
return;
}
snsinfo = (struct scsi_sense_s *)BFA_SNSINFO_FROM_TAG(ioim->fcpim->fcp,
ioim->iotag);
snsinfo->rsp_code = SCSI_SENSE_CUR_ERR;
snsinfo->sense_key = SCSI_MP_IEC_UNIT_ATTN;
snsinfo->asc = SCSI_ASC_TOCC;
snsinfo->add_sense_length = 0x6;
snsinfo->ascq = SCSI_ASCQ_RL_DATA_CHANGED;
bfa_trc(ioim->bfa, residue);
bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_OK,
SCSI_STATUS_CHECK_CONDITION, sns_len,
(u8 *)snsinfo, residue);
}
static void
__bfa_cb_ioim_lm_lun_not_rdy(void *cbarg, bfa_boolean_t complete)
{
struct bfa_ioim_s *ioim = cbarg;
int sns_len = 0xD;
u32 residue = scsi_bufflen((struct scsi_cmnd *)ioim->dio);
struct scsi_sense_s *snsinfo;
if (!complete) {
bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB);
return;
}
snsinfo = (struct scsi_sense_s *)BFA_SNSINFO_FROM_TAG(
ioim->fcpim->fcp, ioim->iotag);
snsinfo->rsp_code = SCSI_SENSE_CUR_ERR;
snsinfo->add_sense_length = 0xa;
snsinfo->sense_key = NOT_READY;
snsinfo->asc = SCSI_ASC_LUN_NOT_READY;
snsinfo->ascq = SCSI_ASCQ_MAN_INTR_REQ;
bfa_trc(ioim->bfa, residue);
bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_OK,
SCSI_STATUS_CHECK_CONDITION, sns_len,
(u8 *)snsinfo, residue);
}
void
bfa_fcpim_lunmask_rp_update(struct bfa_s *bfa, wwn_t lp_wwn, wwn_t rp_wwn,
u16 rp_tag, u8 lp_tag)
{
struct bfa_lun_mask_s *lun_list;
u8 i;
if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_MINCFG)
return;
lun_list = bfa_get_lun_mask_list(bfa);
for (i = 0; i < MAX_LUN_MASK_CFG; i++) {
if (lun_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE) {
if ((lun_list[i].lp_wwn == lp_wwn) &&
(lun_list[i].rp_wwn == rp_wwn)) {
lun_list[i].rp_tag = rp_tag;
lun_list[i].lp_tag = lp_tag;
}
}
}
}
static void
__bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete)
{
@ -2150,6 +2563,7 @@ __bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete)
return;
}
ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy;
bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_ABORTED,
0, 0, NULL, 0);
}
@ -2165,6 +2579,7 @@ __bfa_cb_ioim_pathtov(void *cbarg, bfa_boolean_t complete)
return;
}
ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy;
bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_PATHTOV,
0, 0, NULL, 0);
}
@ -2179,6 +2594,7 @@ __bfa_cb_ioim_abort(void *cbarg, bfa_boolean_t complete)
return;
}
ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy;
bfa_cb_ioim_abort(ioim->bfa->bfad, ioim->dio);
}
@ -2522,6 +2938,7 @@ bfa_ioim_attach(struct bfa_fcpim_s *fcpim)
ioim->bfa = fcpim->bfa;
ioim->fcpim = fcpim;
ioim->iosp = iosp;
ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy;
INIT_LIST_HEAD(&ioim->sgpg_q);
bfa_reqq_winit(&ioim->iosp->reqq_wait,
bfa_ioim_qresume, ioim);
@ -2559,6 +2976,7 @@ bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
evt = BFA_IOIM_SM_DONE;
else
evt = BFA_IOIM_SM_COMP;
ioim->proc_rsp_data(ioim);
break;
case BFI_IOIM_STS_TIMEDOUT:
@ -2594,6 +3012,7 @@ bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
if (rsp->abort_tag != ioim->abort_tag) {
bfa_trc(ioim->bfa, rsp->abort_tag);
bfa_trc(ioim->bfa, ioim->abort_tag);
ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy;
return;
}
@ -2612,6 +3031,7 @@ bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
WARN_ON(1);
}
ioim->proc_rsp_data = bfa_ioim_lm_proc_rsp_data_dummy;
bfa_sm_send_event(ioim, evt);
}
@ -2629,7 +3049,16 @@ bfa_ioim_good_comp_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
WARN_ON(BFA_IOIM_TAG_2_ID(ioim->iotag) != iotag);
bfa_ioim_cb_profile_comp(fcpim, ioim);
bfa_sm_send_event(ioim, BFA_IOIM_SM_COMP_GOOD);
if (bfa_get_lun_mask_status(bfa) != BFA_LUNMASK_ENABLED) {
bfa_sm_send_event(ioim, BFA_IOIM_SM_COMP_GOOD);
return;
}
if (ioim->proc_rsp_data(ioim) == BFA_TRUE)
bfa_sm_send_event(ioim, BFA_IOIM_SM_COMP_GOOD);
else
bfa_sm_send_event(ioim, BFA_IOIM_SM_COMP);
}
/*
@ -2741,6 +3170,35 @@ bfa_ioim_free(struct bfa_ioim_s *ioim)
void
bfa_ioim_start(struct bfa_ioim_s *ioim)
{
struct scsi_cmnd *cmnd = (struct scsi_cmnd *)ioim->dio;
struct bfa_lps_s *lps;
enum bfa_ioim_lm_status status;
struct scsi_lun scsilun;
if (bfa_get_lun_mask_status(ioim->bfa) == BFA_LUNMASK_ENABLED) {
lps = BFA_IOIM_TO_LPS(ioim);
int_to_scsilun(cmnd->device->lun, &scsilun);
status = bfa_ioim_lm_check(ioim, lps,
ioim->itnim->rport, scsilun);
if (status == BFA_IOIM_LM_LUN_NOT_RDY) {
bfa_sm_send_event(ioim, BFA_IOIM_SM_LM_LUN_NOT_RDY);
bfa_stats(ioim->itnim, lm_lun_not_rdy);
return;
}
if (status == BFA_IOIM_LM_LUN_NOT_SUP) {
bfa_sm_send_event(ioim, BFA_IOIM_SM_LM_LUN_NOT_SUP);
bfa_stats(ioim->itnim, lm_lun_not_sup);
return;
}
if (status == BFA_IOIM_LM_RPL_DATA_CHANGED) {
bfa_sm_send_event(ioim, BFA_IOIM_SM_LM_RPL_DC);
bfa_stats(ioim->itnim, lm_rpl_data_changed);
return;
}
}
bfa_ioim_cb_profile_start(ioim->fcpim, ioim);
/*
@ -3484,6 +3942,13 @@ bfa_fcp_detach(struct bfa_s *bfa)
static void
bfa_fcp_start(struct bfa_s *bfa)
{
struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa);
/*
* bfa_init() with flash read is complete. now invalidate the stale
* content of lun mask like unit attention, rp tag and lp tag.
*/
bfa_ioim_lm_init(fcp->bfa);
}
static void

12
drivers/scsi/bfa/bfa_fcpim.h
View File

@ -110,6 +110,7 @@ struct bfad_ioim_s;
struct bfad_tskim_s;
typedef void (*bfa_fcpim_profile_t) (struct bfa_ioim_s *ioim);
typedef bfa_boolean_t (*bfa_ioim_lm_proc_rsp_data_t) (struct bfa_ioim_s *ioim);
struct bfa_fcpim_s {
struct bfa_s *bfa;
@ -123,7 +124,7 @@ struct bfa_fcpim_s {
u32 path_tov;
u16 q_depth;
u8 reqq; /* Request queue to be used */
u8 rsvd;
u8 lun_masking_pending;
struct list_head itnim_q; /* queue of active itnim */
struct list_head ioim_resfree_q; /* IOs waiting for f/w */
struct list_head ioim_comp_q; /* IO global comp Q */
@ -178,7 +179,9 @@ struct bfa_ioim_s {
bfa_cb_cbfn_t io_cbfn; /* IO completion handler */
struct bfa_ioim_sp_s *iosp; /* slow-path IO handling */
u8 reqq; /* Request queue for I/O */
u8 mode; /* IO is passthrough or not */
u64 start_time; /* IO's Profile start val */
bfa_ioim_lm_proc_rsp_data_t proc_rsp_data; /* RSP data adjust */
};
struct bfa_ioim_sp_s {
@ -258,6 +261,10 @@ struct bfa_itnim_s {
(__ioim)->iotag |= k << BFA_IOIM_RETRY_TAG_OFFSET; \
} while (0)
#define BFA_IOIM_TO_LPS(__ioim) \
BFA_LPS_FROM_TAG(BFA_LPS_MOD(__ioim->bfa), \
__ioim->itnim->rport->rport_info.lp_tag)
static inline bfa_boolean_t
bfa_ioim_maxretry_reached(struct bfa_ioim_s *ioim)
{
@ -407,4 +414,7 @@ void bfa_tskim_start(struct bfa_tskim_s *tskim,
void bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk,
enum bfi_tskim_status tsk_status);
void bfa_fcpim_lunmask_rp_update(struct bfa_s *bfa, wwn_t lp_wwn,
wwn_t rp_wwn, u16 rp_tag, u8 lp_tag);
#endif /* __BFA_FCPIM_H__ */

33
drivers/scsi/bfa/bfa_svc.c
View File

@ -4677,6 +4677,7 @@ bfa_rport_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
rp = BFA_RPORT_FROM_TAG(bfa, msg.create_rsp->bfa_handle);
rp->fw_handle = msg.create_rsp->fw_handle;
rp->qos_attr = msg.create_rsp->qos_attr;
bfa_rport_set_lunmask(bfa, rp);
WARN_ON(msg.create_rsp->status != BFA_STATUS_OK);
bfa_sm_send_event(rp, BFA_RPORT_SM_FWRSP);
break;
@ -4684,6 +4685,7 @@ bfa_rport_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
case BFI_RPORT_I2H_DELETE_RSP:
rp = BFA_RPORT_FROM_TAG(bfa, msg.delete_rsp->bfa_handle);
WARN_ON(msg.delete_rsp->status != BFA_STATUS_OK);
bfa_rport_unset_lunmask(bfa, rp);
bfa_sm_send_event(rp, BFA_RPORT_SM_FWRSP);
break;
@ -4764,6 +4766,37 @@ bfa_rport_speed(struct bfa_rport_s *rport, enum bfa_port_speed speed)
bfa_sm_send_event(rport, BFA_RPORT_SM_SET_SPEED);
}
/* Set Rport LUN Mask */
void
bfa_rport_set_lunmask(struct bfa_s *bfa, struct bfa_rport_s *rp)
{
struct bfa_lps_mod_s *lps_mod = BFA_LPS_MOD(bfa);
wwn_t lp_wwn, rp_wwn;
u8 lp_tag = (u8)rp->rport_info.lp_tag;
rp_wwn = ((struct bfa_fcs_rport_s *)rp->rport_drv)->pwwn;
lp_wwn = (BFA_LPS_FROM_TAG(lps_mod, rp->rport_info.lp_tag))->pwwn;
BFA_LPS_FROM_TAG(lps_mod, rp->rport_info.lp_tag)->lun_mask =
rp->lun_mask = BFA_TRUE;
bfa_fcpim_lunmask_rp_update(bfa, lp_wwn, rp_wwn, rp->rport_tag, lp_tag);
}
/* Unset Rport LUN mask */
void
bfa_rport_unset_lunmask(struct bfa_s *bfa, struct bfa_rport_s *rp)
{
struct bfa_lps_mod_s *lps_mod = BFA_LPS_MOD(bfa);
wwn_t lp_wwn, rp_wwn;
rp_wwn = ((struct bfa_fcs_rport_s *)rp->rport_drv)->pwwn;
lp_wwn = (BFA_LPS_FROM_TAG(lps_mod, rp->rport_info.lp_tag))->pwwn;
BFA_LPS_FROM_TAG(lps_mod, rp->rport_info.lp_tag)->lun_mask =
rp->lun_mask = BFA_FALSE;
bfa_fcpim_lunmask_rp_update(bfa, lp_wwn, rp_wwn,
BFA_RPORT_TAG_INVALID, BFA_LP_TAG_INVALID);
}
/*
* SGPG related functions

15
drivers/scsi/bfa/bfa_svc.h
View File

@ -297,6 +297,7 @@ struct bfa_rport_s {
void *rport_drv; /* fcs/driver rport object */
u16 fw_handle; /* firmware rport handle */
u16 rport_tag; /* BFA rport tag */
u8 lun_mask; /* LUN mask flag */
struct bfa_rport_info_s rport_info; /* rport info from fcs/driver */
struct bfa_reqq_wait_s reqq_wait; /* to wait for room in reqq */
struct bfa_cb_qe_s hcb_qe; /* BFA callback qelem */
@ -404,6 +405,7 @@ struct bfa_lps_s {
u8 bb_scn; /* local BB_SCN */
u8 lsrjt_rsn; /* LSRJT reason */
u8 lsrjt_expl; /* LSRJT explanation */
u8 lun_mask; /* LUN mask flag */
wwn_t pwwn; /* port wwn of lport */
wwn_t nwwn; /* node wwn of lport */
wwn_t pr_pwwn; /* port wwn of lport peer */
@ -573,6 +575,19 @@ void bfa_cb_rport_qos_scn_prio(void *rport,
struct bfa_rport_qos_attr_s old_qos_attr,
struct bfa_rport_qos_attr_s new_qos_attr);
/*
* Rport LUN masking related
*/
#define BFA_RPORT_TAG_INVALID 0xffff
#define BFA_LP_TAG_INVALID 0xff
void bfa_rport_set_lunmask(struct bfa_s *bfa, struct bfa_rport_s *rp);
void bfa_rport_unset_lunmask(struct bfa_s *bfa, struct bfa_rport_s *rp);
bfa_boolean_t bfa_rport_lunmask_active(struct bfa_rport_s *rp);
wwn_t bfa_rport_get_pwwn(struct bfa_s *bfa, struct bfa_rport_s *rp);
struct bfa_rport_s *bfa_rport_get_by_wwn(struct bfa_s *bfa, u16 vf_id,
wwn_t *lpwwn, wwn_t rpwwn);
void *bfa_cb_get_rp_by_wwn(void *arg, u16 vf_id, wwn_t *lpwwn, wwn_t rpwwn);
/*
* bfa fcxp API functions
*/