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be2iscsi: Fix mbox synchronization replacing spinlock with mutex 

This is second part of actual fix for soft lockup.

All mbox cmds issued using BMBX and MCC are synchronized using mutex
mbox_lock instead of spin_lock. Used mutex_lock_interruptible where ever
possible.

Signed-off-by: Jitendra Bhivare <jitendra.bhivare@avagotech.com>
Reviewed-by: Shane Seymour <shane.seymour@hpe.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Jitendra Bhivare 2016-01-20 14:10:46 +05:30 committed by Martin K. Petersen
parent 6ac999efee
commit c03a50f709
4 changed files with 94 additions and 88 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/scsi/be2iscsi/be.h
View File

@ -124,7 +124,7 @@ struct be_ctrl_info {
struct pci_dev *pdev;
/* Mbox used for cmd request/response */
spinlock_t mbox_lock; /* For serializing mbox cmds to BE card */
struct mutex mbox_lock; /* For serializing mbox cmds to BE card */
struct be_dma_mem mbox_mem;
/* Mbox mem is adjusted to align to 16 bytes. The allocated addr
* is stored for freeing purpose */

73
drivers/scsi/be2iscsi/be_cmds.c
View File

@ -164,9 +164,9 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
}
/* Set MBX Tag state to Active */
spin_lock(&phba->ctrl.mbox_lock);
mutex_lock(&phba->ctrl.mbox_lock);
phba->ctrl.ptag_state[tag].tag_state = MCC_TAG_STATE_RUNNING;
spin_unlock(&phba->ctrl.mbox_lock);
mutex_unlock(&phba->ctrl.mbox_lock);
/* wait for the mccq completion */
rc = wait_event_interruptible_timeout(
@ -178,9 +178,9 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
if (rc <= 0) {
struct be_dma_mem *tag_mem;
/* Set MBX Tag state to timeout */
spin_lock(&phba->ctrl.mbox_lock);
mutex_lock(&phba->ctrl.mbox_lock);
phba->ctrl.ptag_state[tag].tag_state = MCC_TAG_STATE_TIMEOUT;
spin_unlock(&phba->ctrl.mbox_lock);
mutex_unlock(&phba->ctrl.mbox_lock);
/* Store resource addr to be freed later */
tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state;
@ -199,9 +199,9 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
} else {
rc = 0;
/* Set MBX Tag state to completed */
spin_lock(&phba->ctrl.mbox_lock);
mutex_lock(&phba->ctrl.mbox_lock);
phba->ctrl.ptag_state[tag].tag_state = MCC_TAG_STATE_COMPLETED;
spin_unlock(&phba->ctrl.mbox_lock);
mutex_unlock(&phba->ctrl.mbox_lock);
}
mcc_tag_response = phba->ctrl.mcc_numtag[tag];
@ -390,9 +390,9 @@ int be_mcc_compl_process_isr(struct be_ctrl_info *ctrl,
tag_mem->va, tag_mem->dma);
/* Change tag state */
spin_lock(&phba->ctrl.mbox_lock);
mutex_lock(&phba->ctrl.mbox_lock);
ctrl->ptag_state[tag].tag_state = MCC_TAG_STATE_COMPLETED;
spin_unlock(&phba->ctrl.mbox_lock);
mutex_unlock(&phba->ctrl.mbox_lock);
/* Free MCC Tag */
free_mcc_tag(ctrl, tag);
@ -831,7 +831,7 @@ int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
struct be_dma_mem *q_mem = &eq->dma_mem;
int status;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@ -858,7 +858,7 @@ int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
eq->id = le16_to_cpu(resp->eq_id);
eq->created = true;
}
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -879,7 +879,7 @@ int be_cmd_fw_initialize(struct be_ctrl_info *ctrl)
int status;
u8 *endian_check;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
endian_check = (u8 *) wrb;
@ -898,7 +898,7 @@ int be_cmd_fw_initialize(struct be_ctrl_info *ctrl)
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BC_%d : be_cmd_fw_initialize Failed\n");
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -919,7 +919,7 @@ int be_cmd_fw_uninit(struct be_ctrl_info *ctrl)
int status;
u8 *endian_check;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
endian_check = (u8 *) wrb;
@ -939,7 +939,7 @@ int be_cmd_fw_uninit(struct be_ctrl_info *ctrl)
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BC_%d : be_cmd_fw_uninit Failed\n");
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -955,7 +955,7 @@ int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
void *ctxt = &req->context;
int status;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@ -1005,7 +1005,7 @@ int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
"BC_%d : In be_cmd_cq_create, status=ox%08x\n",
status);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -1029,7 +1029,7 @@ int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba,
void *ctxt;
int status;
spin_lock(&phba->ctrl.mbox_lock);
mutex_lock(&phba->ctrl.mbox_lock);
ctrl = &phba->ctrl;
wrb = wrb_from_mbox(&ctrl->mbox_mem);
memset(wrb, 0, sizeof(*wrb));
@ -1060,7 +1060,7 @@ int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba,
mccq->id = le16_to_cpu(resp->id);
mccq->created = true;
}
spin_unlock(&phba->ctrl.mbox_lock);
mutex_unlock(&phba->ctrl.mbox_lock);
return status;
}
@ -1078,7 +1078,7 @@ int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
"BC_%d : In beiscsi_cmd_q_destroy "
"queue_type : %d\n", queue_type);
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@ -1108,7 +1108,7 @@ int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
opcode = OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES;
break;
default:
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
BUG();
return -ENXIO;
}
@ -1118,7 +1118,7 @@ int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
status = be_mbox_notify(ctrl);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -1153,7 +1153,7 @@ int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
void *ctxt = &req->context;
int status;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@ -1225,7 +1225,7 @@ int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
defq_ring->doorbell_offset = resp->doorbell_offset;
}
}
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -1253,7 +1253,7 @@ int be_cmd_wrbq_create(struct be_ctrl_info *ctrl,
struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
int status;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@ -1284,7 +1284,7 @@ int be_cmd_wrbq_create(struct be_ctrl_info *ctrl,
pwrb_context->doorbell_offset = resp->doorbell_offset;
}
}
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -1295,7 +1295,7 @@ int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl,
struct be_post_template_pages_req *req = embedded_payload(wrb);
int status;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@ -1308,7 +1308,7 @@ int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl,
be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
status = be_mbox_notify(ctrl);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -1318,7 +1318,7 @@ int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl)
struct be_remove_template_pages_req *req = embedded_payload(wrb);
int status;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@ -1329,7 +1329,7 @@ int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl)
req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI;
status = be_mbox_notify(ctrl);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -1348,7 +1348,7 @@ int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
if (num_pages == 0xff)
num_pages = 1;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
do {
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@ -1377,7 +1377,7 @@ int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
}
} while (num_pages > 0);
error:
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
if (status != 0)
beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
return status;
@ -1390,7 +1390,7 @@ int beiscsi_cmd_reset_function(struct beiscsi_hba *phba)
struct be_post_sgl_pages_req *req = embedded_payload(wrb);
int status;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
req = embedded_payload(wrb);
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@ -1398,7 +1398,7 @@ int beiscsi_cmd_reset_function(struct beiscsi_hba *phba)
OPCODE_COMMON_FUNCTION_RESET, sizeof(*req));
status = be_mbox_notify_wait(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -1420,10 +1420,11 @@ int be_cmd_set_vlan(struct beiscsi_hba *phba,
struct be_cmd_set_vlan_req *req;
struct be_ctrl_info *ctrl = &phba->ctrl;
spin_lock(&ctrl->mbox_lock);
if (mutex_lock_interruptible(&ctrl->mbox_lock))
return 0;
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -1439,7 +1440,7 @@ int be_cmd_set_vlan(struct beiscsi_hba *phba,
req->vlan_priority = vlan_tag;
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}

2
drivers/scsi/be2iscsi/be_main.c
View File

@ -727,7 +727,7 @@ static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
spin_lock_init(&ctrl->mbox_lock);
mutex_init(&ctrl->mbox_lock);
spin_lock_init(&phba->ctrl.mcc_lock);
spin_lock_init(&phba->ctrl.mcc_cq_lock);

105
drivers/scsi/be2iscsi/be_mgmt.c
View File

@ -164,10 +164,10 @@ int be_cmd_modify_eq_delay(struct beiscsi_hba *phba,
unsigned int tag = 0;
int i;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -188,7 +188,7 @@ int be_cmd_modify_eq_delay(struct beiscsi_hba *phba,
}
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -215,10 +215,10 @@ unsigned int mgmt_reopen_session(struct beiscsi_hba *phba,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BG_%d : In bescsi_get_boot_target\n");
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -235,7 +235,7 @@ unsigned int mgmt_reopen_session(struct beiscsi_hba *phba,
req->session_handle = sess_handle;
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -250,10 +250,10 @@ unsigned int mgmt_get_boot_target(struct beiscsi_hba *phba)
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BG_%d : In bescsi_get_boot_target\n");
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -266,7 +266,7 @@ unsigned int mgmt_get_boot_target(struct beiscsi_hba *phba)
sizeof(struct be_cmd_get_boot_target_resp));
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -285,10 +285,10 @@ unsigned int mgmt_get_session_info(struct beiscsi_hba *phba,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BG_%d : In beiscsi_get_session_info\n");
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -311,7 +311,7 @@ unsigned int mgmt_get_session_info(struct beiscsi_hba *phba,
sge->len = cpu_to_le32(nonemb_cmd->size);
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -334,7 +334,7 @@ int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
struct be_fw_cfg *req = embedded_payload(wrb);
int status = 0;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
@ -415,7 +415,7 @@ int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
status = -EINVAL;
}
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -440,7 +440,7 @@ int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
nonemb_cmd.size = sizeof(struct be_mgmt_controller_attributes);
req = nonemb_cmd.va;
memset(req, 0, sizeof(*req));
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
memset(wrb, 0, sizeof(*wrb));
be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
@ -470,7 +470,7 @@ int mgmt_check_supported_fw(struct be_ctrl_info *ctrl,
} else
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BG_%d : Failed in mgmt_check_supported_fw\n");
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
if (nonemb_cmd.va)
pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
nonemb_cmd.va, nonemb_cmd.dma);
@ -501,8 +501,9 @@ unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
req->region = region;
req->sector = sector;
req->offset = offset;
spin_lock(&ctrl->mbox_lock);
if (mutex_lock_interruptible(&ctrl->mbox_lock))
return 0;
switch (bsg_req->rqst_data.h_vendor.vendor_cmd[0]) {
case BEISCSI_WRITE_FLASH:
offset = sector * sector_size + offset;
@ -521,13 +522,13 @@ unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
"BG_%d : Unsupported cmd = 0x%x\n\n",
bsg_req->rqst_data.h_vendor.vendor_cmd[0]);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return -ENOSYS;
}
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -542,7 +543,7 @@ unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -562,7 +563,7 @@ int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num)
struct iscsi_cleanup_req *req = embedded_payload(wrb);
int status = 0;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
@ -576,7 +577,7 @@ int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num)
if (status)
beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
"BG_%d : mgmt_epfw_cleanup , FAILED\n");
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return status;
}
@ -592,10 +593,10 @@ unsigned int mgmt_invalidate_icds(struct beiscsi_hba *phba,
struct invalidate_commands_params_in *req;
unsigned int i, tag = 0;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -622,7 +623,7 @@ unsigned int mgmt_invalidate_icds(struct beiscsi_hba *phba,
sge->len = cpu_to_le32(nonemb_cmd->size);
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -637,10 +638,10 @@ unsigned int mgmt_invalidate_connection(struct beiscsi_hba *phba,
struct iscsi_invalidate_connection_params_in *req;
unsigned int tag = 0;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
wrb = wrb_from_mccq(phba);
@ -659,7 +660,7 @@ unsigned int mgmt_invalidate_connection(struct beiscsi_hba *phba,
req->cleanup_type = CMD_ISCSI_CONNECTION_INVALIDATE;
req->save_cfg = savecfg_flag;
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -671,10 +672,10 @@ unsigned int mgmt_upload_connection(struct beiscsi_hba *phba,
struct tcp_upload_params_in *req;
unsigned int tag = 0;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
wrb = wrb_from_mccq(phba);
@ -687,7 +688,7 @@ unsigned int mgmt_upload_connection(struct beiscsi_hba *phba,
req->id = (unsigned short)cid;
req->upload_type = (unsigned char)upload_flag;
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -732,10 +733,11 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
ptemplate_address = &template_address;
ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
spin_lock(&ctrl->mbox_lock);
if (mutex_lock_interruptible(&ctrl->mbox_lock))
return 0;
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
wrb = wrb_from_mccq(phba);
@ -773,7 +775,7 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
"BG_%d : unknown addr family %d\n",
dst_addr->sa_family);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
free_mcc_tag(&phba->ctrl, tag);
return -EINVAL;
@ -802,7 +804,7 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
}
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -815,10 +817,11 @@ unsigned int mgmt_get_all_if_id(struct beiscsi_hba *phba)
unsigned int tag;
int status = 0;
spin_lock(&ctrl->mbox_lock);
if (mutex_lock_interruptible(&ctrl->mbox_lock))
return -EINTR;
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return -ENOMEM;
}
@ -831,7 +834,7 @@ unsigned int mgmt_get_all_if_id(struct beiscsi_hba *phba)
OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID,
sizeof(*req));
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
status = beiscsi_mccq_compl(phba, tag, &wrb, NULL);
if (status) {
@ -864,10 +867,10 @@ static int mgmt_exec_nonemb_cmd(struct beiscsi_hba *phba,
unsigned int tag;
int rc = 0;
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
rc = -ENOMEM;
goto free_cmd;
}
@ -882,7 +885,7 @@ static int mgmt_exec_nonemb_cmd(struct beiscsi_hba *phba,
sge->len = cpu_to_le32(nonemb_cmd->size);
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
rc = beiscsi_mccq_compl(phba, tag, NULL, nonemb_cmd);
@ -1262,10 +1265,11 @@ unsigned int be_cmd_get_initname(struct beiscsi_hba *phba)
struct be_cmd_hba_name *req;
struct be_ctrl_info *ctrl = &phba->ctrl;
spin_lock(&ctrl->mbox_lock);
if (mutex_lock_interruptible(&ctrl->mbox_lock))
return 0;
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -1278,7 +1282,7 @@ unsigned int be_cmd_get_initname(struct beiscsi_hba *phba)
sizeof(*req));
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -1289,10 +1293,11 @@ unsigned int be_cmd_get_port_speed(struct beiscsi_hba *phba)
struct be_cmd_ntwk_link_status_req *req;
struct be_ctrl_info *ctrl = &phba->ctrl;
spin_lock(&ctrl->mbox_lock);
if (mutex_lock_interruptible(&ctrl->mbox_lock))
return 0;
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -1305,7 +1310,7 @@ unsigned int be_cmd_get_port_speed(struct beiscsi_hba *phba)
sizeof(*req));
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
return tag;
}
@ -1761,10 +1766,10 @@ int beiscsi_logout_fw_sess(struct beiscsi_hba *phba,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BG_%d : In bescsi_logout_fwboot_sess\n");
spin_lock(&ctrl->mbox_lock);
mutex_lock(&ctrl->mbox_lock);
tag = alloc_mcc_tag(phba);
if (!tag) {
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
beiscsi_log(phba, KERN_INFO,
BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
"BG_%d : MBX Tag Failure\n");
@ -1782,7 +1787,7 @@ int beiscsi_logout_fw_sess(struct beiscsi_hba *phba,
/* Set the session handle */
req->session_handle = fw_sess_handle;
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
mutex_unlock(&ctrl->mbox_lock);
rc = beiscsi_mccq_compl(phba, tag, &wrb, NULL);
if (rc) {