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path: root/drivers/scsi/lpfc/lpfc_scsi.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_scsi.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c145
1 files changed, 120 insertions, 25 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index baed2b891efb..b4f1a840b3b4 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -2734,6 +2734,7 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba,
int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction;
int prot_group_type = 0;
int fcpdl;
+ struct lpfc_vport *vport = phba->pport;
/*
* Start the lpfc command prep by bumping the bpl beyond fcp_cmnd
@@ -2839,6 +2840,14 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba,
*/
iocb_cmd->un.fcpi.fcpi_parm = fcpdl;
+ /*
+ * For First burst, we may need to adjust the initial transfer
+ * length for DIF
+ */
+ if (iocb_cmd->un.fcpi.fcpi_XRdy &&
+ (fcpdl < vport->cfg_first_burst_size))
+ iocb_cmd->un.fcpi.fcpi_XRdy = fcpdl;
+
return 0;
err:
if (lpfc_cmd->seg_cnt)
@@ -3403,6 +3412,7 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba,
int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction;
int prot_group_type = 0;
int fcpdl;
+ struct lpfc_vport *vport = phba->pport;
/*
* Start the lpfc command prep by bumping the sgl beyond fcp_cmnd
@@ -3519,6 +3529,14 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba,
iocb_cmd->un.fcpi.fcpi_parm = fcpdl;
/*
+ * For First burst, we may need to adjust the initial transfer
+ * length for DIF
+ */
+ if (iocb_cmd->un.fcpi.fcpi_XRdy &&
+ (fcpdl < vport->cfg_first_burst_size))
+ iocb_cmd->un.fcpi.fcpi_XRdy = fcpdl;
+
+ /*
* If the OAS driver feature is enabled and the lun is enabled for
* OAS, set the oas iocb related flags.
*/
@@ -4163,7 +4181,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
/* If pCmd was set to NULL from abort path, do not call scsi_done */
if (xchg(&lpfc_cmd->pCmd, NULL) == NULL) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
- "0711 FCP cmd already NULL, sid: 0x%06x, "
+ "5688 FCP cmd already NULL, sid: 0x%06x, "
"did: 0x%06x, oxid: 0x%04x\n",
vport->fc_myDID,
(pnode) ? pnode->nlp_DID : 0,
@@ -4442,6 +4460,66 @@ lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba,
}
/**
+ * lpfc_check_pci_resettable - Walks list of devices on pci_dev's bus to check
+ * if issuing a pci_bus_reset is possibly unsafe
+ * @phba: lpfc_hba pointer.
+ *
+ * Description:
+ * Walks the bus_list to ensure only PCI devices with Emulex
+ * vendor id, device ids that support hot reset, and only one occurrence
+ * of function 0.
+ *
+ * Returns:
+ * -EBADSLT, detected invalid device
+ * 0, successful
+ */
+int
+lpfc_check_pci_resettable(const struct lpfc_hba *phba)
+{
+ const struct pci_dev *pdev = phba->pcidev;
+ struct pci_dev *ptr = NULL;
+ u8 counter = 0;
+
+ /* Walk the list of devices on the pci_dev's bus */
+ list_for_each_entry(ptr, &pdev->bus->devices, bus_list) {
+ /* Check for Emulex Vendor ID */
+ if (ptr->vendor != PCI_VENDOR_ID_EMULEX) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "8346 Non-Emulex vendor found: "
+ "0x%04x\n", ptr->vendor);
+ return -EBADSLT;
+ }
+
+ /* Check for valid Emulex Device ID */
+ switch (ptr->device) {
+ case PCI_DEVICE_ID_LANCER_FC:
+ case PCI_DEVICE_ID_LANCER_G6_FC:
+ case PCI_DEVICE_ID_LANCER_G7_FC:
+ break;
+ default:
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "8347 Invalid device found: "
+ "0x%04x\n", ptr->device);
+ return -EBADSLT;
+ }
+
+ /* Check for only one function 0 ID to ensure only one HBA on
+ * secondary bus
+ */
+ if (ptr->devfn == 0) {
+ if (++counter > 1) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "8348 More than one device on "
+ "secondary bus found\n");
+ return -EBADSLT;
+ }
+ }
+ }
+
+ return 0;
+}
+
+/**
* lpfc_info - Info entry point of scsi_host_template data structure
* @host: The scsi host for which this call is being executed.
*
@@ -4455,32 +4533,53 @@ lpfc_info(struct Scsi_Host *host)
{
struct lpfc_vport *vport = (struct lpfc_vport *) host->hostdata;
struct lpfc_hba *phba = vport->phba;
- int len, link_speed = 0;
- static char lpfcinfobuf[384];
+ int link_speed = 0;
+ static char lpfcinfobuf[384];
+ char tmp[384] = {0};
- memset(lpfcinfobuf,0,384);
+ memset(lpfcinfobuf, 0, sizeof(lpfcinfobuf));
if (phba && phba->pcidev){
- strncpy(lpfcinfobuf, phba->ModelDesc, 256);
- len = strlen(lpfcinfobuf);
- snprintf(lpfcinfobuf + len,
- 384-len,
- " on PCI bus %02x device %02x irq %d",
- phba->pcidev->bus->number,
- phba->pcidev->devfn,
- phba->pcidev->irq);
- len = strlen(lpfcinfobuf);
+ /* Model Description */
+ scnprintf(tmp, sizeof(tmp), phba->ModelDesc);
+ if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >=
+ sizeof(lpfcinfobuf))
+ goto buffer_done;
+
+ /* PCI Info */
+ scnprintf(tmp, sizeof(tmp),
+ " on PCI bus %02x device %02x irq %d",
+ phba->pcidev->bus->number, phba->pcidev->devfn,
+ phba->pcidev->irq);
+ if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >=
+ sizeof(lpfcinfobuf))
+ goto buffer_done;
+
+ /* Port Number */
if (phba->Port[0]) {
- snprintf(lpfcinfobuf + len,
- 384-len,
- " port %s",
- phba->Port);
+ scnprintf(tmp, sizeof(tmp), " port %s", phba->Port);
+ if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >=
+ sizeof(lpfcinfobuf))
+ goto buffer_done;
}
- len = strlen(lpfcinfobuf);
+
+ /* Link Speed */
link_speed = lpfc_sli_port_speed_get(phba);
- if (link_speed != 0)
- snprintf(lpfcinfobuf + len, 384-len,
- " Logical Link Speed: %d Mbps", link_speed);
+ if (link_speed != 0) {
+ scnprintf(tmp, sizeof(tmp),
+ " Logical Link Speed: %d Mbps", link_speed);
+ if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >=
+ sizeof(lpfcinfobuf))
+ goto buffer_done;
+ }
+
+ /* PCI resettable */
+ if (!lpfc_check_pci_resettable(phba)) {
+ scnprintf(tmp, sizeof(tmp), " PCI resettable");
+ strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf));
+ }
}
+
+buffer_done:
return lpfcinfobuf;
}
@@ -6036,7 +6135,6 @@ struct scsi_host_template lpfc_template_nvme = {
.this_id = -1,
.sg_tablesize = 1,
.cmd_per_lun = 1,
- .use_clustering = ENABLE_CLUSTERING,
.shost_attrs = lpfc_hba_attrs,
.max_sectors = 0xFFFF,
.vendor_id = LPFC_NL_VENDOR_ID,
@@ -6061,7 +6159,6 @@ struct scsi_host_template lpfc_template_no_hr = {
.this_id = -1,
.sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT,
.cmd_per_lun = LPFC_CMD_PER_LUN,
- .use_clustering = ENABLE_CLUSTERING,
.shost_attrs = lpfc_hba_attrs,
.max_sectors = 0xFFFF,
.vendor_id = LPFC_NL_VENDOR_ID,
@@ -6088,7 +6185,6 @@ struct scsi_host_template lpfc_template = {
.this_id = -1,
.sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT,
.cmd_per_lun = LPFC_CMD_PER_LUN,
- .use_clustering = ENABLE_CLUSTERING,
.shost_attrs = lpfc_hba_attrs,
.max_sectors = 0xFFFF,
.vendor_id = LPFC_NL_VENDOR_ID,
@@ -6113,7 +6209,6 @@ struct scsi_host_template lpfc_vport_template = {
.this_id = -1,
.sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT,
.cmd_per_lun = LPFC_CMD_PER_LUN,
- .use_clustering = ENABLE_CLUSTERING,
.shost_attrs = lpfc_vport_attrs,
.max_sectors = 0xFFFF,
.change_queue_depth = scsi_change_queue_depth,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 16:24:24 +0000