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[SCSI] lpfc 8.3.24: Add resource extent support

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This patch adds support for hardware that returns resource ids via
extents rather than contiguous ranges.

[jejb: checkpatch.pl fixes]
Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
This commit is contained in:
James Smart
2011-05-24 11:44:12 -04:00
committed by James Bottomley
parent 52d5244096
commit 6d368e5321
17 changed files with 1937 additions and 276 deletions
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127
drivers/scsi/lpfc/lpfc_init.c
View File

@@ -212,7 +212,6 @@ lpfc_config_port_prep(struct lpfc_hba *phba)
lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
if (!lpfc_vpd_data)
goto out_free_mbox;
do {
lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
@@ -603,7 +602,6 @@ lpfc_config_port_post(struct lpfc_hba *phba)
/* Clear all pending interrupts */
writel(0xffffffff, phba->HAregaddr);
readl(phba->HAregaddr); /* flush */
phba->link_state = LPFC_HBA_ERROR;
if (rc != MBX_BUSY)
mempool_free(pmb, phba->mbox_mem_pool);
@@ -2690,6 +2688,7 @@ lpfc_scsi_free(struct lpfc_hba *phba)
kfree(io);
phba->total_iocbq_bufs--;
}
spin_unlock_irq(&phba->hbalock);
return 0;
}
@@ -3646,6 +3645,7 @@ lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
"2718 Clear Virtual Link Received for VPI 0x%x"
" tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
vport = lpfc_find_vport_by_vpid(phba,
acqe_fip->index - phba->vpi_base);
ndlp = lpfc_sli4_perform_vport_cvl(vport);
@@ -4319,7 +4319,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
/*
* Initialize dirver internal slow-path work queues
* Initialize driver internal slow-path work queues
*/
/* Driver internel slow-path CQ Event pool */
@@ -4335,6 +4335,12 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
/* Receive queue CQ Event work queue list */
INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
/* Initialize extent block lists. */
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
/* Initialize the driver internal SLI layer lists. */
lpfc_sli_setup(phba);
lpfc_sli_queue_setup(phba);
@@ -4409,9 +4415,19 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
}
/*
* Get sli4 parameters that override parameters from Port capabilities.
* If this call fails it is not a critical error so continue loading.
* If this call fails, it isn't critical unless the SLI4 parameters come
* back in conflict.
*/
lpfc_get_sli4_parameters(phba, mboxq);
rc = lpfc_get_sli4_parameters(phba, mboxq);
if (rc) {
if (phba->sli4_hba.extents_in_use &&
phba->sli4_hba.rpi_hdrs_in_use) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2999 Unsupported SLI4 Parameters "
"Extents and RPI headers enabled.\n");
goto out_free_bsmbx;
}
}
mempool_free(mboxq, phba->mbox_mem_pool);
/* Create all the SLI4 queues */
rc = lpfc_sli4_queue_create(phba);
@@ -4436,7 +4452,6 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
"1430 Failed to initialize sgl list.\n");
goto out_free_sgl_list;
}
rc = lpfc_sli4_init_rpi_hdrs(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -4555,6 +4570,9 @@ lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
lpfc_sli4_cq_event_release_all(phba);
lpfc_sli4_cq_event_pool_destroy(phba);
/* Release resource identifiers. */
lpfc_sli4_dealloc_resource_identifiers(phba);
/* Free the bsmbx region. */
lpfc_destroy_bootstrap_mbox(phba);
@@ -4755,6 +4773,7 @@ lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
"Unloading driver.\n", __func__);
goto out_free_iocbq;
}
iocbq_entry->sli4_lxritag = NO_XRI;
iocbq_entry->sli4_xritag = NO_XRI;
spin_lock_irq(&phba->hbalock);
@@ -4852,7 +4871,7 @@ lpfc_init_sgl_list(struct lpfc_hba *phba)
els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2400 lpfc_init_sgl_list els %d.\n",
"2400 ELS XRI count %d.\n",
els_xri_cnt);
/* Initialize and populate the sglq list per host/VF. */
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
@@ -4885,7 +4904,6 @@ lpfc_init_sgl_list(struct lpfc_hba *phba)
phba->sli4_hba.scsi_xri_max =
phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
phba->sli4_hba.scsi_xri_cnt = 0;
phba->sli4_hba.lpfc_scsi_psb_array =
kzalloc((sizeof(struct lpfc_scsi_buf *) *
phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
@@ -4908,13 +4926,6 @@ lpfc_init_sgl_list(struct lpfc_hba *phba)
goto out_free_mem;
}
sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
if (sglq_entry->sli4_xritag == NO_XRI) {
kfree(sglq_entry);
printk(KERN_ERR "%s: failed to allocate XRI.\n"
"Unloading driver.\n", __func__);
goto out_free_mem;
}
sglq_entry->buff_type = GEN_BUFF_TYPE;
sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
if (sglq_entry->virt == NULL) {
@@ -4963,24 +4974,20 @@ int
lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
{
int rc = 0;
int longs;
uint16_t rpi_count;
struct lpfc_rpi_hdr *rpi_hdr;
INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
/*
* Provision an rpi bitmask range for discovery. The total count
* is the difference between max and base + 1.
* If the SLI4 port supports extents, posting the rpi header isn't
* required. Set the expected maximum count and let the actual value
* get set when extents are fully allocated.
*/
rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
phba->sli4_hba.max_cfg_param.max_rpi - 1;
longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
GFP_KERNEL);
if (!phba->sli4_hba.rpi_bmask)
return -ENOMEM;
if (!phba->sli4_hba.rpi_hdrs_in_use) {
phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
return rc;
}
if (phba->sli4_hba.extents_in_use)
return -EIO;
rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
if (!rpi_hdr) {
@@ -5014,11 +5021,28 @@ lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
struct lpfc_rpi_hdr *rpi_hdr;
uint32_t rpi_count;
/*
* If the SLI4 port supports extents, posting the rpi header isn't
* required. Set the expected maximum count and let the actual value
* get set when extents are fully allocated.
*/
if (!phba->sli4_hba.rpi_hdrs_in_use)
return NULL;
if (phba->sli4_hba.extents_in_use)
return NULL;
/* The limit on the logical index is just the max_rpi count. */
rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
phba->sli4_hba.max_cfg_param.max_rpi - 1;
phba->sli4_hba.max_cfg_param.max_rpi - 1;
spin_lock_irq(&phba->hbalock);
curr_rpi_range = phba->sli4_hba.next_rpi;
/*
* Establish the starting RPI in this header block. The starting
* rpi is normalized to a zero base because the physical rpi is
* port based.
*/
curr_rpi_range = phba->sli4_hba.next_rpi -
phba->sli4_hba.max_cfg_param.rpi_base;
spin_unlock_irq(&phba->hbalock);
/*
@@ -5031,6 +5055,8 @@ lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
else
rpi_count = LPFC_RPI_HDR_COUNT;
if (!rpi_count)
return NULL;
/*
* First allocate the protocol header region for the port. The
* port expects a 4KB DMA-mapped memory region that is 4K aligned.
@@ -5063,12 +5089,14 @@ lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
rpi_hdr->page_count = 1;
spin_lock_irq(&phba->hbalock);
rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
/* The rpi_hdr stores the logical index only. */
rpi_hdr->start_rpi = curr_rpi_range;
list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
/*
* The next_rpi stores the next module-64 rpi value to post
* in any subsequent rpi memory region postings.
* The next_rpi stores the next logical module-64 rpi value used
* to post physical rpis in subsequent rpi postings.
*/
phba->sli4_hba.next_rpi += rpi_count;
spin_unlock_irq(&phba->hbalock);
@@ -5087,15 +5115,18 @@ lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to remove all memory resources allocated
* to support rpis. This routine presumes the caller has released all
* rpis consumed by fabric or port logins and is prepared to have
* the header pages removed.
* to support rpis for SLI4 ports not supporting extents. This routine
* presumes the caller has released all rpis consumed by fabric or port
* logins and is prepared to have the header pages removed.
**/
void
lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
{
struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
if (!phba->sli4_hba.rpi_hdrs_in_use)
goto exit;
list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
&phba->sli4_hba.lpfc_rpi_hdr_list, list) {
list_del(&rpi_hdr->list);
@@ -5104,7 +5135,9 @@ lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
kfree(rpi_hdr->dmabuf);
kfree(rpi_hdr);
}
phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
exit:
/* There are no rpis available to the port now. */
phba->sli4_hba.next_rpi = 0;
}
/**
@@ -5873,6 +5906,8 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
rc = -EIO;
} else {
rd_config = &pmb->u.mqe.un.rd_config;
phba->sli4_hba.extents_in_use =
bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
phba->sli4_hba.max_cfg_param.max_xri =
bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
phba->sli4_hba.max_cfg_param.xri_base =
@@ -5891,8 +5926,6 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
phba->sli4_hba.max_cfg_param.max_fcfi =
bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
phba->sli4_hba.max_cfg_param.fcfi_base =
bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
phba->sli4_hba.max_cfg_param.max_eq =
bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
phba->sli4_hba.max_cfg_param.max_rq =
@@ -5910,11 +5943,13 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
phba->max_vports = phba->max_vpi;
lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"2003 cfg params XRI(B:%d M:%d), "
"2003 cfg params Extents? %d "
"XRI(B:%d M:%d), "
"VPI(B:%d M:%d) "
"VFI(B:%d M:%d) "
"RPI(B:%d M:%d) "
"FCFI(B:%d M:%d)\n",
"FCFI(Count:%d)\n",
phba->sli4_hba.extents_in_use,
phba->sli4_hba.max_cfg_param.xri_base,
phba->sli4_hba.max_cfg_param.max_xri,
phba->sli4_hba.max_cfg_param.vpi_base,
@@ -5923,7 +5958,6 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
phba->sli4_hba.max_cfg_param.max_vfi,
phba->sli4_hba.max_cfg_param.rpi_base,
phba->sli4_hba.max_cfg_param.max_rpi,
phba->sli4_hba.max_cfg_param.fcfi_base,
phba->sli4_hba.max_cfg_param.max_fcfi);
}
@@ -8104,6 +8138,13 @@ lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
int length;
struct lpfc_sli4_parameters *mbx_sli4_parameters;
/*
* By default, the driver assumes the SLI4 port requires RPI
* header postings. The SLI4_PARAM response will correct this
* assumption.
*/
phba->sli4_hba.rpi_hdrs_in_use = 1;
/* Read the port's SLI4 Config Parameters */
length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
sizeof(struct lpfc_sli4_cfg_mhdr));
@@ -8140,6 +8181,8 @@ lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
mbx_sli4_parameters);
sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
mbx_sli4_parameters);
phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
/* Make sure that sge_supp_len can be handled by the driver */
if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)