mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-13 04:48:21 -04:00
Code Issues Packages Projects Releases Wiki Activity

scsi: qla2xxx: Add support for mailbox passthru

Browse Source 
This interface will allow user space applications to send a mailbox command
to the firmware.

Link: https://lore.kernel.org/r/20210908164622.19240-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bikash Hazarika <bhazarika@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Bikash Hazarika
2021-09-08 09:46:13 -07:00
committed by Martin K. Petersen
parent 51e6ed83bb
commit 9e1c320696
4 changed files with 92 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
drivers/scsi/qla2xxx/qla_bsg.c
View File

@@ -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;
}

7
drivers/scsi/qla2xxx/qla_bsg.h
View File

@@ -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 */

4
drivers/scsi/qla2xxx/qla_gbl.h
View File

@@ -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.
*/

33
drivers/scsi/qla2xxx/qla_mbx.c
View File

@@ -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;
}