[SCSI] lpfc 8.3.2 : Addition of SLI4 Interface - Base Support
Adds new hardware and interface definitions.
Adds new interface routines - utilizing the reorganized layout of the
driver. Adds SLI-4 specific functions for attachment, initialization,
teardown, etc.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index a226c05..9af2db3 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -31,8 +31,10 @@
#include <scsi/scsi_transport_fc.h>
#include "lpfc_version.h"
+#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
+#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
@@ -57,6 +59,8 @@
"SCSI_PROT_READ_CONVERT",
"SCSI_PROT_WRITE_CONVERT"
};
+static void
+lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb);
static void
lpfc_debug_save_data(struct scsi_cmnd *cmnd)
@@ -565,6 +569,8 @@
}
iocb->ulpClass = CLASS3;
psb->status = IOSTAT_SUCCESS;
+ /* Put it back into the SCSI buffer list */
+ lpfc_release_scsi_buf_s4(phba, psb);
}
@@ -572,6 +578,271 @@
}
/**
+ * lpfc_sli4_fcp_xri_aborted - Fast-path process of fcp xri abort
+ * @phba: pointer to lpfc hba data structure.
+ * @axri: pointer to the fcp xri abort wcqe structure.
+ *
+ * This routine is invoked by the worker thread to process a SLI4 fast-path
+ * FCP aborted xri.
+ **/
+void
+lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *phba,
+ struct sli4_wcqe_xri_aborted *axri)
+{
+ uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
+ struct lpfc_scsi_buf *psb, *next_psb;
+ unsigned long iflag = 0;
+
+ spin_lock_irqsave(&phba->sli4_hba.abts_scsi_buf_list_lock, iflag);
+ list_for_each_entry_safe(psb, next_psb,
+ &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) {
+ if (psb->cur_iocbq.sli4_xritag == xri) {
+ list_del(&psb->list);
+ psb->status = IOSTAT_SUCCESS;
+ spin_unlock_irqrestore(
+ &phba->sli4_hba.abts_scsi_buf_list_lock,
+ iflag);
+ lpfc_release_scsi_buf_s4(phba, psb);
+ return;
+ }
+ }
+ spin_unlock_irqrestore(&phba->sli4_hba.abts_scsi_buf_list_lock,
+ iflag);
+}
+
+/**
+ * lpfc_sli4_repost_scsi_sgl_list - Repsot the Scsi buffers sgl pages as block
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine walks the list of scsi buffers that have been allocated and
+ * repost them to the HBA by using SGL block post. This is needed after a
+ * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine
+ * is responsible for moving all scsi buffers on the lpfc_abts_scsi_sgl_list
+ * to the lpfc_scsi_buf_list. If the repost fails, reject all scsi buffers.
+ *
+ * Returns: 0 = success, non-zero failure.
+ **/
+int
+lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *phba)
+{
+ struct lpfc_scsi_buf *psb;
+ int index, status, bcnt = 0, rcnt = 0, rc = 0;
+ LIST_HEAD(sblist);
+
+ for (index = 0; index < phba->sli4_hba.scsi_xri_cnt; index++) {
+ psb = phba->sli4_hba.lpfc_scsi_psb_array[index];
+ if (psb) {
+ /* Remove from SCSI buffer list */
+ list_del(&psb->list);
+ /* Add it to a local SCSI buffer list */
+ list_add_tail(&psb->list, &sblist);
+ if (++rcnt == LPFC_NEMBED_MBOX_SGL_CNT) {
+ bcnt = rcnt;
+ rcnt = 0;
+ }
+ } else
+ /* A hole present in the XRI array, need to skip */
+ bcnt = rcnt;
+
+ if (index == phba->sli4_hba.scsi_xri_cnt - 1)
+ /* End of XRI array for SCSI buffer, complete */
+ bcnt = rcnt;
+
+ /* Continue until collect up to a nembed page worth of sgls */
+ if (bcnt == 0)
+ continue;
+ /* Now, post the SCSI buffer list sgls as a block */
+ status = lpfc_sli4_post_scsi_sgl_block(phba, &sblist, bcnt);
+ /* Reset SCSI buffer count for next round of posting */
+ bcnt = 0;
+ while (!list_empty(&sblist)) {
+ list_remove_head(&sblist, psb, struct lpfc_scsi_buf,
+ list);
+ if (status) {
+ /* Put this back on the abort scsi list */
+ psb->status = IOSTAT_LOCAL_REJECT;
+ psb->result = IOERR_ABORT_REQUESTED;
+ rc++;
+ } else
+ psb->status = IOSTAT_SUCCESS;
+ /* Put it back into the SCSI buffer list */
+ lpfc_release_scsi_buf_s4(phba, psb);
+ }
+ }
+ return rc;
+}
+
+/**
+ * lpfc_new_scsi_buf_s4 - Scsi buffer allocator for HBA with SLI4 IF spec
+ * @vport: The virtual port for which this call being executed.
+ * @num_to_allocate: The requested number of buffers to allocate.
+ *
+ * This routine allocates a scsi buffer for device with SLI-4 interface spec,
+ * the scsi buffer contains all the necessary information needed to initiate
+ * a SCSI I/O.
+ *
+ * Return codes:
+ * int - number of scsi buffers that were allocated.
+ * 0 = failure, less than num_to_alloc is a partial failure.
+ **/
+static int
+lpfc_new_scsi_buf_s4(struct lpfc_vport *vport, int num_to_alloc)
+{
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_scsi_buf *psb;
+ struct sli4_sge *sgl;
+ IOCB_t *iocb;
+ dma_addr_t pdma_phys_fcp_cmd;
+ dma_addr_t pdma_phys_fcp_rsp;
+ dma_addr_t pdma_phys_bpl, pdma_phys_bpl1;
+ uint16_t iotag, last_xritag = NO_XRI;
+ int status = 0, index;
+ int bcnt;
+ int non_sequential_xri = 0;
+ int rc = 0;
+ LIST_HEAD(sblist);
+
+ for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
+ psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL);
+ if (!psb)
+ break;
+
+ /*
+ * Get memory from the pci pool to map the virt space to pci bus
+ * space for an I/O. The DMA buffer includes space for the
+ * struct fcp_cmnd, struct fcp_rsp and the number of bde's
+ * necessary to support the sg_tablesize.
+ */
+ psb->data = pci_pool_alloc(phba->lpfc_scsi_dma_buf_pool,
+ GFP_KERNEL, &psb->dma_handle);
+ if (!psb->data) {
+ kfree(psb);
+ break;
+ }
+
+ /* Initialize virtual ptrs to dma_buf region. */
+ memset(psb->data, 0, phba->cfg_sg_dma_buf_size);
+
+ /* Allocate iotag for psb->cur_iocbq. */
+ iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq);
+ if (iotag == 0) {
+ kfree(psb);
+ break;
+ }
+
+ psb->cur_iocbq.sli4_xritag = lpfc_sli4_next_xritag(phba);
+ if (psb->cur_iocbq.sli4_xritag == NO_XRI) {
+ pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
+ psb->data, psb->dma_handle);
+ kfree(psb);
+ break;
+ }
+ if (last_xritag != NO_XRI
+ && psb->cur_iocbq.sli4_xritag != (last_xritag+1)) {
+ non_sequential_xri = 1;
+ } else
+ list_add_tail(&psb->list, &sblist);
+ last_xritag = psb->cur_iocbq.sli4_xritag;
+
+ index = phba->sli4_hba.scsi_xri_cnt++;
+ psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP;
+
+ psb->fcp_bpl = psb->data;
+ psb->fcp_cmnd = (psb->data + phba->cfg_sg_dma_buf_size)
+ - (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp));
+ psb->fcp_rsp = (struct fcp_rsp *)((uint8_t *)psb->fcp_cmnd +
+ sizeof(struct fcp_cmnd));
+
+ /* Initialize local short-hand pointers. */
+ sgl = (struct sli4_sge *)psb->fcp_bpl;
+ pdma_phys_bpl = psb->dma_handle;
+ pdma_phys_fcp_cmd =
+ (psb->dma_handle + phba->cfg_sg_dma_buf_size)
+ - (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp));
+ pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd);
+
+ /*
+ * The first two bdes are the FCP_CMD and FCP_RSP. The balance
+ * are sg list bdes. Initialize the first two and leave the
+ * rest for queuecommand.
+ */
+ sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd));
+ sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd));
+ bf_set(lpfc_sli4_sge_len, sgl, sizeof(struct fcp_cmnd));
+ bf_set(lpfc_sli4_sge_last, sgl, 0);
+ sgl->word2 = cpu_to_le32(sgl->word2);
+ sgl->word3 = cpu_to_le32(sgl->word3);
+ sgl++;
+
+ /* Setup the physical region for the FCP RSP */
+ sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp));
+ sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp));
+ bf_set(lpfc_sli4_sge_len, sgl, sizeof(struct fcp_rsp));
+ bf_set(lpfc_sli4_sge_last, sgl, 1);
+ sgl->word2 = cpu_to_le32(sgl->word2);
+ sgl->word3 = cpu_to_le32(sgl->word3);
+
+ /*
+ * Since the IOCB for the FCP I/O is built into this
+ * lpfc_scsi_buf, initialize it with all known data now.
+ */
+ iocb = &psb->cur_iocbq.iocb;
+ iocb->un.fcpi64.bdl.ulpIoTag32 = 0;
+ iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
+ /* setting the BLP size to 2 * sizeof BDE may not be correct.
+ * We are setting the bpl to point to out sgl. An sgl's
+ * entries are 16 bytes, a bpl entries are 12 bytes.
+ */
+ iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd);
+ iocb->un.fcpi64.bdl.addrLow = putPaddrLow(pdma_phys_fcp_cmd);
+ iocb->un.fcpi64.bdl.addrHigh = putPaddrHigh(pdma_phys_fcp_cmd);
+ iocb->ulpBdeCount = 1;
+ iocb->ulpLe = 1;
+ iocb->ulpClass = CLASS3;
+ if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
+ pdma_phys_bpl1 = pdma_phys_bpl + SGL_PAGE_SIZE;
+ else
+ pdma_phys_bpl1 = 0;
+ psb->dma_phys_bpl = pdma_phys_bpl;
+ phba->sli4_hba.lpfc_scsi_psb_array[index] = psb;
+ if (non_sequential_xri) {
+ status = lpfc_sli4_post_sgl(phba, pdma_phys_bpl,
+ pdma_phys_bpl1,
+ psb->cur_iocbq.sli4_xritag);
+ if (status) {
+ /* Put this back on the abort scsi list */
+ psb->status = IOSTAT_LOCAL_REJECT;
+ psb->result = IOERR_ABORT_REQUESTED;
+ rc++;
+ } else
+ psb->status = IOSTAT_SUCCESS;
+ /* Put it back into the SCSI buffer list */
+ lpfc_release_scsi_buf_s4(phba, psb);
+ break;
+ }
+ }
+ if (bcnt) {
+ status = lpfc_sli4_post_scsi_sgl_block(phba, &sblist, bcnt);
+ /* Reset SCSI buffer count for next round of posting */
+ while (!list_empty(&sblist)) {
+ list_remove_head(&sblist, psb, struct lpfc_scsi_buf,
+ list);
+ if (status) {
+ /* Put this back on the abort scsi list */
+ psb->status = IOSTAT_LOCAL_REJECT;
+ psb->result = IOERR_ABORT_REQUESTED;
+ rc++;
+ } else
+ psb->status = IOSTAT_SUCCESS;
+ /* Put it back into the SCSI buffer list */
+ lpfc_release_scsi_buf_s4(phba, psb);
+ }
+ }
+
+ return bcnt + non_sequential_xri - rc;
+}
+
+/**
* lpfc_new_scsi_buf - Wrapper funciton for scsi buffer allocator
* @vport: The virtual port for which this call being executed.
* @num_to_allocate: The requested number of buffers to allocate.
@@ -638,6 +909,39 @@
}
/**
+ * lpfc_release_scsi_buf_s4: Return a scsi buffer back to hba scsi buf list.
+ * @phba: The Hba for which this call is being executed.
+ * @psb: The scsi buffer which is being released.
+ *
+ * This routine releases @psb scsi buffer by adding it to tail of @phba
+ * lpfc_scsi_buf_list list. For SLI4 XRI's are tied to the scsi buffer
+ * and cannot be reused for at least RA_TOV amount of time if it was
+ * aborted.
+ **/
+static void
+lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb)
+{
+ unsigned long iflag = 0;
+
+ if (psb->status == IOSTAT_LOCAL_REJECT
+ && psb->result == IOERR_ABORT_REQUESTED) {
+ spin_lock_irqsave(&phba->sli4_hba.abts_scsi_buf_list_lock,
+ iflag);
+ psb->pCmd = NULL;
+ list_add_tail(&psb->list,
+ &phba->sli4_hba.lpfc_abts_scsi_buf_list);
+ spin_unlock_irqrestore(&phba->sli4_hba.abts_scsi_buf_list_lock,
+ iflag);
+ } else {
+
+ spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
+ psb->pCmd = NULL;
+ list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list);
+ spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
+ }
+}
+
+/**
* lpfc_release_scsi_buf: Return a scsi buffer back to hba scsi buf list.
* @phba: The Hba for which this call is being executed.
* @psb: The scsi buffer which is being released.
@@ -1455,6 +1759,115 @@
}
/**
+ * lpfc_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec
+ * @phba: The Hba for which this call is being executed.
+ * @lpfc_cmd: The scsi buffer which is going to be mapped.
+ *
+ * This routine does the pci dma mapping for scatter-gather list of scsi cmnd
+ * field of @lpfc_cmd for device with SLI-4 interface spec.
+ *
+ * Return codes:
+ * 1 - Error
+ * 0 - Success
+ **/
+static int
+lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
+{
+ struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
+ struct scatterlist *sgel = NULL;
+ struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
+ struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
+ IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
+ dma_addr_t physaddr;
+ uint32_t num_bde = 0;
+ uint32_t dma_len;
+ uint32_t dma_offset = 0;
+ int nseg;
+
+ /*
+ * There are three possibilities here - use scatter-gather segment, use
+ * the single mapping, or neither. Start the lpfc command prep by
+ * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first
+ * data bde entry.
+ */
+ if (scsi_sg_count(scsi_cmnd)) {
+ /*
+ * The driver stores the segment count returned from pci_map_sg
+ * because this a count of dma-mappings used to map the use_sg
+ * pages. They are not guaranteed to be the same for those
+ * architectures that implement an IOMMU.
+ */
+
+ nseg = scsi_dma_map(scsi_cmnd);
+ if (unlikely(!nseg))
+ return 1;
+ sgl += 1;
+ /* clear the last flag in the fcp_rsp map entry */
+ sgl->word2 = le32_to_cpu(sgl->word2);
+ bf_set(lpfc_sli4_sge_last, sgl, 0);
+ sgl->word2 = cpu_to_le32(sgl->word2);
+ sgl += 1;
+
+ lpfc_cmd->seg_cnt = nseg;
+ if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) {
+ printk(KERN_ERR "%s: Too many sg segments from "
+ "dma_map_sg. Config %d, seg_cnt %d\n",
+ __func__, phba->cfg_sg_seg_cnt,
+ lpfc_cmd->seg_cnt);
+ scsi_dma_unmap(scsi_cmnd);
+ return 1;
+ }
+
+ /*
+ * The driver established a maximum scatter-gather segment count
+ * during probe that limits the number of sg elements in any
+ * single scsi command. Just run through the seg_cnt and format
+ * the sge's.
+ * When using SLI-3 the driver will try to fit all the BDEs into
+ * the IOCB. If it can't then the BDEs get added to a BPL as it
+ * does for SLI-2 mode.
+ */
+ scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) {
+ physaddr = sg_dma_address(sgel);
+ dma_len = sg_dma_len(sgel);
+ bf_set(lpfc_sli4_sge_len, sgl, sg_dma_len(sgel));
+ sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr));
+ sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr));
+ if ((num_bde + 1) == nseg)
+ bf_set(lpfc_sli4_sge_last, sgl, 1);
+ else
+ bf_set(lpfc_sli4_sge_last, sgl, 0);
+ bf_set(lpfc_sli4_sge_offset, sgl, dma_offset);
+ sgl->word2 = cpu_to_le32(sgl->word2);
+ sgl->word3 = cpu_to_le32(sgl->word3);
+ dma_offset += dma_len;
+ sgl++;
+ }
+ } else {
+ sgl += 1;
+ /* clear the last flag in the fcp_rsp map entry */
+ sgl->word2 = le32_to_cpu(sgl->word2);
+ bf_set(lpfc_sli4_sge_last, sgl, 1);
+ sgl->word2 = cpu_to_le32(sgl->word2);
+ }
+
+ /*
+ * Finish initializing those IOCB fields that are dependent on the
+ * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is
+ * explicitly reinitialized.
+ * all iocb memory resources are reused.
+ */
+ fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd));
+
+ /*
+ * Due to difference in data length between DIF/non-DIF paths,
+ * we need to set word 4 of IOCB here
+ */
+ iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd);
+ return 0;
+}
+
+/**
* lpfc_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer
* @phba: The Hba for which this call is being executed.
* @lpfc_cmd: The scsi buffer which is going to be mapped.
@@ -1590,6 +2003,22 @@
}
/**
+ * lpfc_scsi_unprep_dma_buf_s4 - Un-map DMA mapping of SG-list for SLI4 dev
+ * @phba: The Hba for which this call is being executed.
+ * @psb: The scsi buffer which is going to be un-mapped.
+ *
+ * This routine does DMA un-mapping of scatter gather list of scsi command
+ * field of @lpfc_cmd for device with SLI-4 interface spec. If we have to
+ * remove the sgl for this scsi buffer then we will do it here. For now
+ * we should be able to just call the sli3 unprep routine.
+ **/
+static void
+lpfc_scsi_unprep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb)
+{
+ lpfc_scsi_unprep_dma_buf_s3(phba, psb);
+}
+
+/**
* lpfc_scsi_unprep_dma_buf - Wrapper function for unmap DMA mapping of SG-list
* @phba: The Hba for which this call is being executed.
* @psb: The scsi buffer which is going to be un-mapped.
@@ -2129,6 +2558,29 @@
}
/**
+ * lpfc_scsi_prep_cmnd_s4 - Convert scsi cmnd to FCP infor unit for SLI4 dev
+ * @vport: The virtual port for which this call is being executed.
+ * @lpfc_cmd: The scsi command which needs to send.
+ * @pnode: Pointer to lpfc_nodelist.
+ *
+ * This routine initializes fcp_cmnd and iocb data structure from scsi command
+ * to transfer for device with SLI4 interface spec.
+ **/
+static void
+lpfc_scsi_prep_cmnd_s4(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
+ struct lpfc_nodelist *pnode)
+{
+ /*
+ * The prep cmnd routines do not touch the sgl or its
+ * entries. We may not have to do anything different.
+ * I will leave this function in place until we can
+ * run some IO through the driver and determine if changes
+ * are needed.
+ */
+ return lpfc_scsi_prep_cmnd_s3(vport, lpfc_cmd, pnode);
+}
+
+/**
* lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit
* @vport: The virtual port for which this call is being executed.
* @lpfc_cmd: The scsi command which needs to send.
@@ -2209,6 +2661,37 @@
}
/**
+ * lpfc_scsi_prep_task_mgmt_cmnd_s4 - Convert SLI4 scsi TM cmd to FCP info unit
+ * @vport: The virtual port for which this call is being executed.
+ * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure.
+ * @lun: Logical unit number.
+ * @task_mgmt_cmd: SCSI task management command.
+ *
+ * This routine creates FCP information unit corresponding to @task_mgmt_cmd
+ * for device with SLI-4 interface spec.
+ *
+ * Return codes:
+ * 0 - Error
+ * 1 - Success
+ **/
+static int
+lpfc_scsi_prep_task_mgmt_cmd_s4(struct lpfc_vport *vport,
+ struct lpfc_scsi_buf *lpfc_cmd,
+ unsigned int lun,
+ uint8_t task_mgmt_cmd)
+{
+ /*
+ * The prep cmnd routines do not touch the sgl or its
+ * entries. We may not have to do anything different.
+ * I will leave this function in place until we can
+ * run some IO through the driver and determine if changes
+ * are needed.
+ */
+ return lpfc_scsi_prep_task_mgmt_cmd_s3(vport, lpfc_cmd, lun,
+ task_mgmt_cmd);
+}
+
+/**
* lpfc_scsi_prep_task_mgmt_cmnd - Wrapper func convert scsi TM cmd to FCP info
* @vport: The virtual port for which this call is being executed.
* @lpfc_cmd: Pointer to lpfc_scsi_buf data structure.
@@ -2257,6 +2740,15 @@
lpfc_scsi_prep_task_mgmt_cmd_s3;
phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s3;
break;
+ case LPFC_PCI_DEV_OC:
+ phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s4;
+ phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s4;
+ phba->lpfc_scsi_prep_cmnd = lpfc_scsi_prep_cmnd_s4;
+ phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf_s4;
+ phba->lpfc_scsi_prep_task_mgmt_cmd =
+ lpfc_scsi_prep_task_mgmt_cmd_s4;
+ phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s4;
+ break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"1418 Invalid HBA PCI-device group: 0x%x\n",