From: Quinn Tran qutran@marvell.com
[ Upstream commit 9fd26c633e8ab5a291c0241533efff161bbe5570 ]
Various EDIF bsgs did not properly fill out the reply_payload_rcv_len field. This causes app to parse empty data in the return payload.
Link: https://lore.kernel.org/r/20211026115412.27691-13-njavali@marvell.com Fixes: 7ebb336e45ef ("scsi: qla2xxx: edif: Add start + stop bsgs") Reviewed-by: Himanshu Madhani himanshu.madhani@oracle.com Signed-off-by: Quinn Tran qutran@marvell.com Signed-off-by: Nilesh Javali njavali@marvell.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/qla2xxx/qla_edif.c | 49 ++++++++++++++++----------------- 1 file changed, 23 insertions(+), 26 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_edif.c b/drivers/scsi/qla2xxx/qla_edif.c index 98235df803aef..9240e788b011d 100644 --- a/drivers/scsi/qla2xxx/qla_edif.c +++ b/drivers/scsi/qla2xxx/qla_edif.c @@ -544,14 +544,14 @@ qla_edif_app_start(scsi_qla_host_t *vha, struct bsg_job *bsg_job) appreply.edif_enode_active = vha->pur_cinfo.enode_flags; appreply.edif_edb_active = vha->e_dbell.db_flags;
- bsg_job->reply_len = sizeof(struct fc_bsg_reply) + - sizeof(struct app_start_reply); + bsg_job->reply_len = sizeof(struct fc_bsg_reply);
SET_DID_STATUS(bsg_reply->result, DID_OK);
- sg_copy_from_buffer(bsg_job->reply_payload.sg_list, - bsg_job->reply_payload.sg_cnt, &appreply, - sizeof(struct app_start_reply)); + bsg_reply->reply_payload_rcv_len = sg_copy_from_buffer(bsg_job->reply_payload.sg_list, + bsg_job->reply_payload.sg_cnt, + &appreply, + sizeof(struct app_start_reply));
ql_dbg(ql_dbg_edif, vha, 0x911d, "%s app start completed with 0x%x\n", @@ -748,9 +748,10 @@ qla_edif_app_authok(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
errstate_exit: bsg_job->reply_len = sizeof(struct fc_bsg_reply); - sg_copy_from_buffer(bsg_job->reply_payload.sg_list, - bsg_job->reply_payload.sg_cnt, &appplogireply, - sizeof(struct app_plogi_reply)); + bsg_reply->reply_payload_rcv_len = sg_copy_from_buffer(bsg_job->reply_payload.sg_list, + bsg_job->reply_payload.sg_cnt, + &appplogireply, + sizeof(struct app_plogi_reply));
return rval; } @@ -833,7 +834,7 @@ static int qla_edif_app_getfcinfo(scsi_qla_host_t *vha, struct bsg_job *bsg_job) { int32_t rval = 0; - int32_t num_cnt; + int32_t pcnt = 0; struct fc_bsg_reply *bsg_reply = bsg_job->reply; struct app_pinfo_req app_req; struct app_pinfo_reply *app_reply; @@ -845,16 +846,14 @@ qla_edif_app_getfcinfo(scsi_qla_host_t *vha, struct bsg_job *bsg_job) bsg_job->request_payload.sg_cnt, &app_req, sizeof(struct app_pinfo_req));
- num_cnt = app_req.num_ports; /* num of ports alloc'd by app */ - app_reply = kzalloc((sizeof(struct app_pinfo_reply) + - sizeof(struct app_pinfo) * num_cnt), GFP_KERNEL); + sizeof(struct app_pinfo) * app_req.num_ports), GFP_KERNEL); + if (!app_reply) { SET_DID_STATUS(bsg_reply->result, DID_ERROR); rval = -1; } else { struct fc_port *fcport = NULL, *tf; - uint32_t pcnt = 0;
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) { if (!(fcport->flags & FCF_FCSP_DEVICE)) @@ -923,9 +922,11 @@ qla_edif_app_getfcinfo(scsi_qla_host_t *vha, struct bsg_job *bsg_job) SET_DID_STATUS(bsg_reply->result, DID_OK); }
- sg_copy_from_buffer(bsg_job->reply_payload.sg_list, - bsg_job->reply_payload.sg_cnt, app_reply, - sizeof(struct app_pinfo_reply) + sizeof(struct app_pinfo) * num_cnt); + bsg_job->reply_len = sizeof(struct fc_bsg_reply); + bsg_reply->reply_payload_rcv_len = sg_copy_from_buffer(bsg_job->reply_payload.sg_list, + bsg_job->reply_payload.sg_cnt, + app_reply, + sizeof(struct app_pinfo_reply) + sizeof(struct app_pinfo) * pcnt);
kfree(app_reply);
@@ -942,10 +943,11 @@ qla_edif_app_getstats(scsi_qla_host_t *vha, struct bsg_job *bsg_job) { int32_t rval = 0; struct fc_bsg_reply *bsg_reply = bsg_job->reply; - uint32_t ret_size, size; + uint32_t size;
struct app_sinfo_req app_req; struct app_stats_reply *app_reply; + uint32_t pcnt = 0;
sg_copy_to_buffer(bsg_job->request_payload.sg_list, bsg_job->request_payload.sg_cnt, &app_req, @@ -961,18 +963,12 @@ qla_edif_app_getstats(scsi_qla_host_t *vha, struct bsg_job *bsg_job) size = sizeof(struct app_stats_reply) + (sizeof(struct app_sinfo) * app_req.num_ports);
- if (size > bsg_job->reply_payload.payload_len) - ret_size = bsg_job->reply_payload.payload_len; - else - ret_size = size; - app_reply = kzalloc(size, GFP_KERNEL); if (!app_reply) { SET_DID_STATUS(bsg_reply->result, DID_ERROR); rval = -1; } else { struct fc_port *fcport = NULL, *tf; - uint32_t pcnt = 0;
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) { if (fcport->edif.enable) { @@ -996,9 +992,11 @@ qla_edif_app_getstats(scsi_qla_host_t *vha, struct bsg_job *bsg_job) SET_DID_STATUS(bsg_reply->result, DID_OK); }
+ bsg_job->reply_len = sizeof(struct fc_bsg_reply); bsg_reply->reply_payload_rcv_len = sg_copy_from_buffer(bsg_job->reply_payload.sg_list, - bsg_job->reply_payload.sg_cnt, app_reply, ret_size); + bsg_job->reply_payload.sg_cnt, app_reply, + sizeof(struct app_stats_reply) + (sizeof(struct app_sinfo) * pcnt));
kfree(app_reply);
@@ -1072,8 +1070,7 @@ qla_edif_app_mgmt(struct bsg_job *bsg_job) __func__, bsg_request->rqst_data.h_vendor.vendor_cmd[1]); rval = EXT_STATUS_INVALID_PARAM; - bsg_job->reply_len = sizeof(struct fc_bsg_reply); - SET_DID_STATUS(bsg_reply->result, DID_ERROR); + done = false; break; }