From: Harish Zunjarrao <[email protected]>
Signed-off-by: Harish Zunjarrao <[email protected]>
Signed-off-by: Vikas Chaudhary <[email protected]>
---
drivers/scsi/qla4xxx/ql4_bsg.c | 77 ++++++++++++++++++++++++++++++++++++++++
drivers/scsi/qla4xxx/ql4_bsg.h | 1 +
2 files changed, 78 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/qla4xxx/ql4_bsg.c b/drivers/scsi/qla4xxx/ql4_bsg.c
index e2c58aa..fbe077a 100644
--- a/drivers/scsi/qla4xxx/ql4_bsg.c
+++ b/drivers/scsi/qla4xxx/ql4_bsg.c
@@ -505,6 +505,80 @@ exit_about_firmware:
return rval;
}
+static int qla4xxx_bsg_set_acb(struct bsg_job *bsg_job)
+{
+ struct Scsi_Host *host = iscsi_job_to_shost(bsg_job);
+ struct scsi_qla_host *ha = to_qla_host(host);
+ struct iscsi_bsg_request *bsg_req = bsg_job->request;
+ struct iscsi_bsg_reply *bsg_reply = bsg_job->reply;
+ uint32_t acb_type = 0;
+ uint32_t len = 0;
+ dma_addr_t acb_dma;
+ struct addr_ctrl_blk *acb = NULL;
+ int rval = -EINVAL;
+ uint32_t mbox_cmd[MBOX_REG_COUNT];
+ uint32_t mbox_sts[MBOX_REG_COUNT];
+
+ bsg_reply->reply_payload_rcv_len = 0;
+
+ if (unlikely(pci_channel_offline(ha->pdev)))
+ goto leave;
+
+ /* Only 4022 and above adapters are supported */
+ if (is_qla4010(ha))
+ goto leave;
+
+ if (ql4xxx_reset_active(ha)) {
+ ql4_printk(KERN_ERR, ha, "%s: reset active\n", __func__);
+ rval = -EBUSY;
+ goto leave;
+ }
+
+ acb_type = bsg_req->rqst_data.h_vendor.vendor_cmd[1];
+ len = bsg_job->request_payload.payload_len;
+ if (len < sizeof(struct addr_ctrl_blk)) {
+ ql4_printk(KERN_ERR, ha, "%s: invalid acb len %d\n",
+ __func__, len);
+ rval = -EINVAL;
+ goto leave;
+ }
+
+ acb = dma_alloc_coherent(&ha->pdev->dev, len, &acb_dma, GFP_KERNEL);
+ if (!acb) {
+ ql4_printk(KERN_ERR, ha, "%s: dma alloc failed for acb data\n",
+ __func__);
+ rval = -ENOMEM;
+ goto leave;
+ }
+
+ memset(acb, 0, len);
+ sg_copy_to_buffer(bsg_job->request_payload.sg_list,
+ bsg_job->request_payload.sg_cnt, acb, len);
+
+ memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+ memset(&mbox_sts, 0, sizeof(mbox_sts));
+
+ /* TODO: Current set ACB implementation lacks acb_type */
+ rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
+ if (rval) {
+ ql4_printk(KERN_ERR, ha, "%s: set acb failed\n", __func__);
+ bsg_reply->result = DID_ERROR << 16;
+ rval = -EIO;
+ } else {
+ bsg_reply->result = DID_OK << 16;
+ /* Update local copy */
+ memset(acb, 0, len);
+ qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], acb,
+ acb_dma);
+ }
+
+ bsg_job_done(bsg_job, bsg_reply->result,
+ bsg_reply->reply_payload_rcv_len);
+ dma_free_coherent(&ha->pdev->dev, len, acb, acb_dma);
+leave:
+ return rval;
+}
+
/**
* qla4xxx_process_vendor_specific - handle vendor specific bsg request
* @job: iscsi_bsg_job to handle
@@ -541,6 +615,9 @@ int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job)
case QLISCSI_VND_ABOUT_FIRMWARE:
return qla4xxx_bsg_about_firmware(bsg_job);
+ case QLISCSI_VND_SET_ACB:
+ return qla4xxx_bsg_set_acb(bsg_job);
+
default:
ql4_printk(KERN_ERR, ha, "%s: invalid BSG vendor command: "
"0x%x\n", __func__, bsg_req->msgcode);
diff --git a/drivers/scsi/qla4xxx/ql4_bsg.h b/drivers/scsi/qla4xxx/ql4_bsg.h
index c530213..36d4979 100644
--- a/drivers/scsi/qla4xxx/ql4_bsg.h
+++ b/drivers/scsi/qla4xxx/ql4_bsg.h
@@ -16,5 +16,6 @@
#define QLISCSI_VND_RESTORE_DEFAULTS 6
#define QLISCSI_VND_GET_ACB 7
#define QLISCSI_VND_ABOUT_FIRMWARE 8
+#define QLISCSI_VND_SET_ACB 9
#endif
--
1.7.8.GIT
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