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path: root/drivers/scsi/lpfc/lpfc_attr.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c76
1 files changed, 3 insertions, 73 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index bffd86f204d..80ca11c5158 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -1466,80 +1466,10 @@ lpfc_sriov_hw_max_virtfn_show(struct device *dev,
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
- struct pci_dev *pdev = phba->pcidev;
- union lpfc_sli4_cfg_shdr *shdr;
- uint32_t shdr_status, shdr_add_status;
- LPFC_MBOXQ_t *mboxq;
- struct lpfc_mbx_get_prof_cfg *get_prof_cfg;
- struct lpfc_rsrc_desc_pcie *desc;
- uint32_t max_nr_virtfn;
- uint32_t desc_count;
- int length, rc, i;
-
- if ((phba->sli_rev < LPFC_SLI_REV4) ||
- (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
- LPFC_SLI_INTF_IF_TYPE_2))
- return -EPERM;
-
- if (!pdev->is_physfn)
- return snprintf(buf, PAGE_SIZE, "%d\n", 0);
-
- mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- if (!mboxq)
- return -ENOMEM;
-
- /* get the maximum number of virtfn support by physfn */
- length = (sizeof(struct lpfc_mbx_get_prof_cfg) -
- sizeof(struct lpfc_sli4_cfg_mhdr));
- lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
- LPFC_MBOX_OPCODE_GET_PROFILE_CONFIG,
- length, LPFC_SLI4_MBX_EMBED);
- shdr = (union lpfc_sli4_cfg_shdr *)
- &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
- bf_set(lpfc_mbox_hdr_pf_num, &shdr->request,
- phba->sli4_hba.iov.pf_number + 1);
-
- get_prof_cfg = &mboxq->u.mqe.un.get_prof_cfg;
- bf_set(lpfc_mbx_get_prof_cfg_prof_tp, &get_prof_cfg->u.request,
- LPFC_CFG_TYPE_CURRENT_ACTIVE);
-
- rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
- lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
-
- if (rc != MBX_TIMEOUT) {
- /* check return status */
- shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
- shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
- &shdr->response);
- if (shdr_status || shdr_add_status || rc)
- goto error_out;
-
- } else
- goto error_out;
-
- desc_count = get_prof_cfg->u.response.prof_cfg.rsrc_desc_count;
-
- for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
- desc = (struct lpfc_rsrc_desc_pcie *)
- &get_prof_cfg->u.response.prof_cfg.desc[i];
- if (LPFC_RSRC_DESC_TYPE_PCIE ==
- bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
- max_nr_virtfn = bf_get(lpfc_rsrc_desc_pcie_nr_virtfn,
- desc);
- break;
- }
- }
-
- if (i < LPFC_RSRC_DESC_MAX_NUM) {
- if (rc != MBX_TIMEOUT)
- mempool_free(mboxq, phba->mbox_mem_pool);
- return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
- }
+ uint16_t max_nr_virtfn;
-error_out:
- if (rc != MBX_TIMEOUT)
- mempool_free(mboxq, phba->mbox_mem_pool);
- return -EIO;
+ max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
+ return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
}
/**