Commit 6085491c authored by Harish Zunjarrao's avatar Harish Zunjarrao Committed by James Bottomley

[SCSI] qla4xxx: Added Get ACB support using BSG

This command is used to read ACB params from firmware
Signed-off-by: default avatarHarish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: default avatarVikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: default avatarMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 5232f801
...@@ -381,6 +381,71 @@ qla4xxx_restore_defaults(struct bsg_job *bsg_job) ...@@ -381,6 +381,71 @@ qla4xxx_restore_defaults(struct bsg_job *bsg_job)
return rval; return rval;
} }
static int
qla4xxx_bsg_get_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;
uint8_t *acb = NULL;
int rval = -EINVAL;
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->reply_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;
}
rval = qla4xxx_get_acb(ha, acb_dma, acb_type, len);
if (rval) {
ql4_printk(KERN_ERR, ha, "%s: get acb failed\n", __func__);
bsg_reply->result = DID_ERROR << 16;
rval = -EIO;
} else {
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt,
acb, len);
bsg_reply->result = DID_OK << 16;
}
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 * qla4xxx_process_vendor_specific - handle vendor specific bsg request
* @job: iscsi_bsg_job to handle * @job: iscsi_bsg_job to handle
...@@ -411,6 +476,9 @@ int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job) ...@@ -411,6 +476,9 @@ int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job)
case QLISCSI_VND_RESTORE_DEFAULTS: case QLISCSI_VND_RESTORE_DEFAULTS:
return qla4xxx_restore_defaults(bsg_job); return qla4xxx_restore_defaults(bsg_job);
case QLISCSI_VND_GET_ACB:
return qla4xxx_bsg_get_acb(bsg_job);
default: default:
ql4_printk(KERN_ERR, ha, "%s: invalid BSG vendor command: " ql4_printk(KERN_ERR, ha, "%s: invalid BSG vendor command: "
"0x%x\n", __func__, bsg_req->msgcode); "0x%x\n", __func__, bsg_req->msgcode);
......
...@@ -14,5 +14,6 @@ ...@@ -14,5 +14,6 @@
#define QLISCSI_VND_READ_NVRAM 4 #define QLISCSI_VND_READ_NVRAM 4
#define QLISCSI_VND_UPDATE_NVRAM 5 #define QLISCSI_VND_UPDATE_NVRAM 5
#define QLISCSI_VND_RESTORE_DEFAULTS 6 #define QLISCSI_VND_RESTORE_DEFAULTS 6
#define QLISCSI_VND_GET_ACB 7
#endif #endif
...@@ -56,8 +56,8 @@ int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha, ...@@ -56,8 +56,8 @@ int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha,
int qla4xxx_disable_acb(struct scsi_qla_host *ha); int qla4xxx_disable_acb(struct scsi_qla_host *ha);
int qla4xxx_set_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, int qla4xxx_set_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
uint32_t *mbox_sts, dma_addr_t acb_dma); uint32_t *mbox_sts, dma_addr_t acb_dma);
int qla4xxx_get_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t acb_dma,
uint32_t *mbox_sts, dma_addr_t acb_dma); uint32_t acb_type, uint32_t len);
int qla4xxx_get_ip_state(struct scsi_qla_host *ha, uint32_t acb_idx, int qla4xxx_get_ip_state(struct scsi_qla_host *ha, uint32_t acb_idx,
uint32_t ip_idx, uint32_t *sts); uint32_t ip_idx, uint32_t *sts);
void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session); void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session);
......
...@@ -1425,18 +1425,21 @@ int qla4xxx_disable_acb(struct scsi_qla_host *ha) ...@@ -1425,18 +1425,21 @@ int qla4xxx_disable_acb(struct scsi_qla_host *ha)
return status; return status;
} }
int qla4xxx_get_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t acb_dma,
uint32_t *mbox_sts, dma_addr_t acb_dma) uint32_t acb_type, uint32_t len)
{ {
uint32_t mbox_cmd[MBOX_REG_COUNT];
uint32_t mbox_sts[MBOX_REG_COUNT];
int status = QLA_SUCCESS; int status = QLA_SUCCESS;
memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT); memset(&mbox_cmd, 0, sizeof(mbox_cmd));
memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT); memset(&mbox_sts, 0, sizeof(mbox_sts));
mbox_cmd[0] = MBOX_CMD_GET_ACB; mbox_cmd[0] = MBOX_CMD_GET_ACB;
mbox_cmd[1] = 0; /* Primary ACB */ mbox_cmd[1] = acb_type;
mbox_cmd[2] = LSDW(acb_dma); mbox_cmd[2] = LSDW(acb_dma);
mbox_cmd[3] = MSDW(acb_dma); mbox_cmd[3] = MSDW(acb_dma);
mbox_cmd[4] = sizeof(struct addr_ctrl_blk); mbox_cmd[4] = len;
status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]); status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
if (status != QLA_SUCCESS) { if (status != QLA_SUCCESS) {
......
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