[SCSI] qla2xxx: Add CT passthru support for ISP23xx adapters

[pandora-kernel.git] / drivers / scsi / qla2xxx / qla_iocb.c

diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 370646f..e27d947 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -1764,6 +1764,82 @@ qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
             (bsg_job->reply_payload.sg_list));
 }
 
+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)
 {
@@ -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) ?