From: Bikash Hazarika <bhazarika@xxxxxxxxxxx>
This interface will allow user space application(s) to send a mailbox
command to the FW.
Signed-off-by: Bikash Hazarika <bhazarika@xxxxxxxxxxx>
Signed-off-by: Nilesh Javali <njavali@xxxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_bsg.c | 48 ++++++++++++++++++++++++++++++++++
drivers/scsi/qla2xxx/qla_bsg.h | 7 +++++
drivers/scsi/qla2xxx/qla_gbl.h | 4 +++
drivers/scsi/qla2xxx/qla_mbx.c | 33 +++++++++++++++++++++++
4 files changed, 92 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index 4b5d28d89d69..0c33fb0de21a 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -2877,6 +2877,9 @@ qla2x00_process_vendor_specific(struct scsi_qla_host *vha, struct bsg_job *bsg_j
case QL_VND_MANAGE_HOST_PORT:
return qla2x00_manage_host_port(bsg_job);
+ case QL_VND_MBX_PASSTHRU:
+ return qla2x00_mailbox_passthru(bsg_job);
+
default:
return -ENOSYS;
}
@@ -3013,3 +3016,48 @@ qla24xx_bsg_timeout(struct bsg_job *bsg_job)
sp->free(sp);
return 0;
}
+
+int qla2x00_mailbox_passthru(struct bsg_job *bsg_job)
+{
+ struct fc_bsg_reply *bsg_reply = bsg_job->reply;
+ scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
+ int ret = -EINVAL;
+ int ptsize = sizeof(struct qla_mbx_passthru);
+ struct qla_mbx_passthru *req_data = NULL;
+ uint32_t req_data_len;
+
+ req_data_len = bsg_job->request_payload.payload_len;
+ if (req_data_len != ptsize) {
+ ql_log(ql_log_warn, vha, 0xf0a3, "req_data_len invalid.\n");
+ return -EIO;
+ }
+ req_data = kzalloc(ptsize, GFP_KERNEL);
+ if (!req_data) {
+ ql_log(ql_log_warn, vha, 0xf0a4,
+ "req_data memory allocation failure.\n");
+ return -ENOMEM;
+ }
+
+ /* Copy the request buffer in req_data */
+ sg_copy_to_buffer(bsg_job->request_payload.sg_list,
+ bsg_job->request_payload.sg_cnt, req_data, ptsize);
+ ret = qla_mailbox_passthru(vha, req_data->mbx_in, req_data->mbx_out);
+
+ /* Copy the req_data in request buffer */
+ sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
+ bsg_job->reply_payload.sg_cnt, req_data, ptsize);
+
+ bsg_reply->reply_payload_rcv_len = ptsize;
+ if (ret == QLA_SUCCESS)
+ bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
+ else
+ bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_ERR;
+
+ bsg_job->reply_len = sizeof(*bsg_job->reply);
+ bsg_reply->result = DID_OK << 16;
+ bsg_job_done(bsg_job, bsg_reply->result, bsg_reply->reply_payload_rcv_len);
+
+ kfree(req_data);
+
+ return ret;
+}
diff --git a/drivers/scsi/qla2xxx/qla_bsg.h b/drivers/scsi/qla2xxx/qla_bsg.h
index dd793cf8bc1e..0f8a4c7e52a2 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.h
+++ b/drivers/scsi/qla2xxx/qla_bsg.h
@@ -36,6 +36,7 @@
#define QL_VND_GET_HOST_STATS 0x24
#define QL_VND_GET_TGT_STATS 0x25
#define QL_VND_MANAGE_HOST_PORT 0x26
+#define QL_VND_MBX_PASSTHRU 0x2B
/* BSG Vendor specific subcode returns */
#define EXT_STATUS_OK 0
@@ -187,6 +188,12 @@ struct qla_port_param {
uint16_t speed;
} __attribute__ ((packed));
+struct qla_mbx_passthru {
+ uint16_t reserved1[2];
+ uint16_t mbx_in[32];
+ uint16_t mbx_out[32];
+ uint32_t reserved2[16];
+} __packed;
/* FRU VPD */
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 1c3f055d41b8..8aadcdeca6cb 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -662,9 +662,13 @@ extern int qla2xxx_get_vpd_field(scsi_qla_host_t *, char *, char *, size_t);
extern void qla2xxx_flash_npiv_conf(scsi_qla_host_t *);
extern int qla24xx_read_fcp_prio_cfg(scsi_qla_host_t *);
+extern int qla2x00_mailbox_passthru(struct bsg_job *bsg_job);
int __qla_copy_purex_to_buffer(struct scsi_qla_host *vha, void **pkt,
struct rsp_que **rsp, u8 *buf, u32 buf_len);
+int qla_mailbox_passthru(scsi_qla_host_t *vha, uint16_t *mbx_in,
+ uint16_t *mbx_out);
+
/*
* Global Function Prototypes in qla_dbg.c source file.
*/
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 7811c4952035..9eb41dd39043 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -7011,3 +7011,36 @@ void qla_no_op_mb(struct scsi_qla_host *vha)
"Failed %s %x\n", __func__, rval);
}
}
+
+int qla_mailbox_passthru(scsi_qla_host_t *vha,
+ uint16_t *mbx_in, uint16_t *mbx_out)
+{
+ mbx_cmd_t mc;
+ mbx_cmd_t *mcp = &mc;
+ int rval = -EINVAL;
+
+ memset(&mc, 0, sizeof(mc));
+ /* Receiving all 32 register's contents */
+ memcpy(&mcp->mb, (char *)mbx_in, (32 * sizeof(uint16_t)));
+
+ mcp->out_mb = 0xFFFFFFFF;
+ mcp->in_mb = 0xFFFFFFFF;
+
+ mcp->tov = MBX_TOV_SECONDS;
+ mcp->flags = 0;
+ mcp->bufp = NULL;
+
+ rval = qla2x00_mailbox_command(vha, mcp);
+
+ if (rval != QLA_SUCCESS) {
+ ql_dbg(ql_dbg_mbx, vha, 0xf0a2,
+ "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
+ } else {
+ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0xf0a3, "Done %s.\n",
+ __func__);
+ /* passing all 32 register's contents */
+ memcpy(mbx_out, &mcp->mb, 32 * sizeof(uint16_t));
+ }
+
+ return rval;
+}
--
2.19.0.rc0
