From: Harish Zunjarrao <harish.zunjarrao@xxxxxxxxxx>
Signed-off-by: Harish Zunjarrao <harish.zunjarrao@xxxxxxxxxx>
Signed-off-by: Giridhar Malavali <giridhar.malavali@xxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_bsg.c | 9 ----
drivers/scsi/qla2xxx/qla_iocb.c | 80 +++++++++++++++++++++++++++++++++++++-
drivers/scsi/qla2xxx/qla_isr.c | 83 +++++++++++++++++++++++++++++++++++++++
3 files changed, 162 insertions(+), 10 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index 518fccf..04ead06 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -396,15 +396,6 @@ qla2x00_process_ct(struct fc_bsg_job *bsg_job)
char *type = "FC_BSG_HST_CT";
struct srb_ctx *ct;
- /* pass through is supported only for ISP 4Gb or higher */
- if (!IS_FWI2_CAPABLE(ha)) {
- DEBUG2(qla_printk(KERN_INFO, ha,
- "scsi(%ld):Firmware is not capable to support FC "
- "CT pass thru\n", vha->host_no));
- rval = -EPERM;
- goto done;
- }
-
req_sg_cnt =
dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 370646f..e27d947 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -1765,6 +1765,82 @@ qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
}
static void
+qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb)
+{
+ uint16_t avail_dsds;
+ uint32_t *cur_dsd;
+ struct scatterlist *sg;
+ int index;
+ uint16_t tot_dsds;
+ scsi_qla_host_t *vha = sp->fcport->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job;
+ int loop_iterartion = 0;
+ int cont_iocb_prsnt = 0;
+ int entry_count = 1;
+
+ memset(ct_iocb, 0, sizeof(ms_iocb_entry_t));
+ ct_iocb->entry_type = CT_IOCB_TYPE;
+ ct_iocb->entry_status = 0;
+ ct_iocb->handle1 = sp->handle;
+ SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id);
+ ct_iocb->status = __constant_cpu_to_le16(0);
+ ct_iocb->control_flags = __constant_cpu_to_le16(0);
+ ct_iocb->timeout = 0;
+ ct_iocb->cmd_dsd_count =
+ __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt);
+ ct_iocb->total_dsd_count =
+ __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1);
+ ct_iocb->req_bytecount =
+ cpu_to_le32(bsg_job->request_payload.payload_len);
+ ct_iocb->rsp_bytecount =
+ cpu_to_le32(bsg_job->reply_payload.payload_len);
+
+ ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address
+ (bsg_job->request_payload.sg_list)));
+ ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address
+ (bsg_job->request_payload.sg_list)));
+ ct_iocb->dseg_req_length = ct_iocb->req_bytecount;
+
+ ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address
+ (bsg_job->reply_payload.sg_list)));
+ ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address
+ (bsg_job->reply_payload.sg_list)));
+ ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount;
+
+ avail_dsds = 1;
+ cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address;
+ index = 0;
+ tot_dsds = bsg_job->reply_payload.sg_cnt;
+
+ for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) {
+ dma_addr_t sle_dma;
+ cont_a64_entry_t *cont_pkt;
+
+ /* Allocate additional continuation packets? */
+ if (avail_dsds == 0) {
+ /*
+ * Five DSDs are available in the Cont.
+ * Type 1 IOCB.
+ */
+ cont_pkt = qla2x00_prep_cont_type1_iocb(vha);
+ cur_dsd = (uint32_t *) cont_pkt->dseg_0_address;
+ avail_dsds = 5;
+ cont_iocb_prsnt = 1;
+ entry_count++;
+ }
+
+ sle_dma = sg_dma_address(sg);
+ *cur_dsd++ = cpu_to_le32(LSD(sle_dma));
+ *cur_dsd++ = cpu_to_le32(MSD(sle_dma));
+ *cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
+ loop_iterartion++;
+ avail_dsds--;
+ }
+ ct_iocb->entry_count = entry_count;
+}
+
+static void
qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
{
uint16_t avail_dsds;
@@ -1867,7 +1943,9 @@ qla2x00_start_sp(srb_t *sp)
qla24xx_els_iocb(sp, pkt);
break;
case SRB_CT_CMD:
- qla24xx_ct_iocb(sp, pkt);
+ IS_FWI2_CAPABLE(ha) ?
+ qla24xx_ct_iocb(sp, pkt) :
+ qla2x00_ct_iocb(sp, pkt);
break;
case SRB_ADISC_CMD:
IS_FWI2_CAPABLE(ha) ?
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index ffc855f..5180033 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -984,6 +984,86 @@ logio_done:
}
static void
+qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
+ sts_entry_t *pkt, int iocb_type)
+{
+ const char func[] = "CT_IOCB";
+ const char *type;
+ struct qla_hw_data *ha = vha->hw;
+ srb_t *sp;
+ struct srb_ctx *sp_bsg;
+ struct fc_bsg_job *bsg_job;
+ uint16_t comp_status;
+
+ sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
+ if (!sp)
+ return;
+
+ sp_bsg = sp->ctx;
+ bsg_job = sp_bsg->u.bsg_job;
+
+ type = NULL;
+ switch (sp_bsg->type) {
+ case SRB_CT_CMD:
+ type = "ct pass-through";
+ break;
+ default:
+ qla_printk(KERN_WARNING, ha,
+ "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
+ sp_bsg->type);
+ return;
+ }
+
+ comp_status = le16_to_cpu(pkt->comp_status);
+
+ /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
+ * fc payload to the caller
+ */
+ bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
+ bsg_job->reply_len = sizeof(struct fc_bsg_reply);
+
+ if (comp_status != CS_COMPLETE) {
+ if (comp_status == CS_DATA_UNDERRUN) {
+ bsg_job->reply->result = DID_OK << 16;
+ bsg_job->reply->reply_payload_rcv_len =
+ le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
+
+ DEBUG2(qla_printk(KERN_WARNING, ha,
+ "scsi(%ld): CT pass-through-%s error "
+ "comp_status-status=0x%x total_byte = 0x%x.\n",
+ vha->host_no, type, comp_status,
+ bsg_job->reply->reply_payload_rcv_len));
+ } else {
+ DEBUG2(qla_printk(KERN_WARNING, ha,
+ "scsi(%ld): CT pass-through-%s error "
+ "comp_status-status=0x%x.\n",
+ vha->host_no, type, comp_status));
+ bsg_job->reply->result = DID_ERROR << 16;
+ bsg_job->reply->reply_payload_rcv_len = 0;
+ }
+ DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt)));
+ } else {
+ bsg_job->reply->result = DID_OK << 16;;
+ bsg_job->reply->reply_payload_rcv_len =
+ bsg_job->reply_payload.payload_len;
+ bsg_job->reply_len = 0;
+ }
+
+ dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
+ bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
+
+ dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
+ bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
+
+ if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD)
+ kfree(sp->fcport);
+
+ kfree(sp->ctx);
+ mempool_free(sp, ha->srb_mempool);
+ bsg_job->job_done(bsg_job);
+}
+
+static void
qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
struct sts_entry_24xx *pkt, int iocb_type)
{
@@ -1303,6 +1383,9 @@ qla2x00_process_response_queue(struct rsp_que *rsp)
qla2x00_mbx_iocb_entry(vha, rsp->req,
(struct mbx_entry *)pkt);
break;
+ case CT_IOCB_TYPE:
+ qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
+ break;
default:
/* Type Not Supported. */
DEBUG4(printk(KERN_WARNING
--
1.6.0.2
--
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