This patch fixes a bug where the buffer was being freed as soon as
submission to HW is done.
Signed-off-by: Jayamohan Kallickal <jayamohank@xxxxxxxxxxxxxxxxx>
---
drivers/scsi/be2iscsi/be_iscsi.c | 24 +++++++++++++++++++-
drivers/scsi/be2iscsi/be_main.c | 41 +++++++++++++++++++++++++++++++---
drivers/scsi/be2iscsi/be_mgmt.c | 45 +++++++++++++++++--------------------
drivers/scsi/be2iscsi/be_mgmt.h | 9 +++++--
4 files changed, 87 insertions(+), 32 deletions(-)
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index 2a924db..ff4a482 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -476,6 +476,7 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
struct be_mcc_wrb *wrb;
struct tcp_connect_and_offload_out *ptcpcnct_out;
unsigned short status, extd_status;
+ struct be_dma_mem nonemb_cmd;
unsigned int tag, wrb_num;
int ret = -ENOMEM;
@@ -492,16 +493,31 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
if (beiscsi_ep->ep_cid > (phba->fw_config.iscsi_cid_start +
phba->params.cxns_per_ctrl * 2)) {
SE_DEBUG(DBG_LVL_1, "Failed in allocate iscsi cid\n");
+ beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
return ret;
}
beiscsi_ep->cid_vld = 0;
- tag = mgmt_open_connection(phba, dst_addr, beiscsi_ep);
+ nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
+ sizeof(struct tcp_connect_and_offload_in),
+ &nonemb_cmd.dma);
+ if (nonemb_cmd.va == NULL) {
+ SE_DEBUG(DBG_LVL_1,
+ "Failed to allocate memory for mgmt_open_connection"
+ "\n");
+ beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
+ return -ENOMEM;
+ }
+ nonemb_cmd.size = sizeof(struct tcp_connect_and_offload_in);
+ memset(nonemb_cmd.va, 0, nonemb_cmd.size);
+ tag = mgmt_open_connection(phba, dst_addr, beiscsi_ep, &nonemb_cmd);
if (!tag) {
SE_DEBUG(DBG_LVL_1,
"mgmt_open_connection Failed for cid=%d\n",
beiscsi_ep->ep_cid);
beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
+ pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
return -EAGAIN;
} else {
wait_event_interruptible(phba->ctrl.mcc_wait[tag],
@@ -514,7 +530,10 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
SE_DEBUG(DBG_LVL_1, "mgmt_open_connection Failed"
" status = %d extd_status = %d\n",
status, extd_status);
+ beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
free_mcc_tag(&phba->ctrl, tag);
+ pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
return -EAGAIN;
} else {
wrb = queue_get_wrb(mccq, wrb_num);
@@ -526,6 +545,9 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
beiscsi_ep->cid_vld = 1;
SE_DEBUG(DBG_LVL_8, "mgmt_open_connection Success\n");
}
+ beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
+ pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
return 0;
}
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 9205f29..5a98aff 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -71,6 +71,7 @@ static int beiscsi_eh_abort(struct scsi_cmnd *sc)
struct beiscsi_hba *phba;
struct iscsi_session *session;
struct invalidate_command_table *inv_tbl;
+ struct be_dma_mem nonemb_cmd;
unsigned int cid, tag, num_invalidate;
cls_session = starget_to_session(scsi_target(sc->device));
@@ -101,18 +102,34 @@ static int beiscsi_eh_abort(struct scsi_cmnd *sc)
inv_tbl->cid = cid;
inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index;
num_invalidate = 1;
- tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, cid);
+ nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
+ sizeof(struct invalidate_commands_params_in),
+ &nonemb_cmd.dma);
+ if (nonemb_cmd.va == NULL) {
+ SE_DEBUG(DBG_LVL_1,
+ "Failed to allocate memory for"
+ "mgmt_invalidate_icds\n");
+ return FAILED;
+ }
+ nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
+
+ tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate,
+ cid, &nonemb_cmd);
if (!tag) {
shost_printk(KERN_WARNING, phba->shost,
"mgmt_invalidate_icds could not be"
" submitted\n");
+ pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+
return FAILED;
} else {
wait_event_interruptible(phba->ctrl.mcc_wait[tag],
phba->ctrl.mcc_numtag[tag]);
free_mcc_tag(&phba->ctrl, tag);
}
-
+ pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
return iscsi_eh_abort(sc);
}
@@ -126,6 +143,7 @@ static int beiscsi_eh_device_reset(struct scsi_cmnd *sc)
struct iscsi_session *session;
struct iscsi_cls_session *cls_session;
struct invalidate_command_table *inv_tbl;
+ struct be_dma_mem nonemb_cmd;
unsigned int cid, tag, i, num_invalidate;
int rc = FAILED;
@@ -160,18 +178,33 @@ static int beiscsi_eh_device_reset(struct scsi_cmnd *sc)
spin_unlock_bh(&session->lock);
inv_tbl = phba->inv_tbl;
- tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate, cid);
+ nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
+ sizeof(struct invalidate_commands_params_in),
+ &nonemb_cmd.dma);
+ if (nonemb_cmd.va == NULL) {
+ SE_DEBUG(DBG_LVL_1,
+ "Failed to allocate memory for"
+ "mgmt_invalidate_icds\n");
+ return FAILED;
+ }
+ nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
+ memset(nonemb_cmd.va, 0, nonemb_cmd.size);
+ tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate,
+ cid, &nonemb_cmd);
if (!tag) {
shost_printk(KERN_WARNING, phba->shost,
"mgmt_invalidate_icds could not be"
" submitted\n");
+ pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
return FAILED;
} else {
wait_event_interruptible(phba->ctrl.mcc_wait[tag],
phba->ctrl.mcc_numtag[tag]);
free_mcc_tag(&phba->ctrl, tag);
}
-
+ pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
return iscsi_eh_device_reset(sc);
unlock:
spin_unlock_bh(&session->lock);
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 3036d9e..3f3fab9 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -50,7 +50,7 @@ int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
pfw_cfg->ulp[0].sq_count;
if (phba->fw_config.iscsi_cid_count > (BE2_MAX_SESSIONS / 2)) {
SE_DEBUG(DBG_LVL_8,
- "FW reported MAX CXNS as %d \t"
+ "FW reported MAX CXNS as %d\t"
"Max Supported = %d.\n",
phba->fw_config.iscsi_cid_count,
BE2_MAX_SESSIONS);
@@ -145,9 +145,10 @@ int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute)
unsigned int mgmt_invalidate_icds(struct beiscsi_hba *phba,
struct invalidate_command_table *inv_tbl,
- unsigned int num_invalidate, unsigned int cid)
+ unsigned int num_invalidate, unsigned int cid,
+ struct be_dma_mem *nonemb_cmd)
+
{
- struct be_dma_mem nonemb_cmd;
struct be_ctrl_info *ctrl = &phba->ctrl;
struct be_mcc_wrb *wrb;
struct be_sge *sge;
@@ -161,18 +162,7 @@ unsigned int mgmt_invalidate_icds(struct beiscsi_hba *phba,
return tag;
}
- nonemb_cmd.va = pci_alloc_consistent(ctrl->pdev,
- sizeof(struct invalidate_commands_params_in),
- &nonemb_cmd.dma);
- if (nonemb_cmd.va == NULL) {
- SE_DEBUG(DBG_LVL_1,
- "Failed to alloc memory for mgmt_invalidate_icds\n");
- spin_unlock(&ctrl->mbox_lock);
- free_mcc_tag(&phba->ctrl, tag);
- return 0;
- }
- nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
- req = nonemb_cmd.va;
+ req = nonemb_cmd->va;
memset(req, 0, sizeof(*req));
wrb = wrb_from_mccq(phba);
sge = nonembedded_sgl(wrb);
@@ -190,15 +180,12 @@ unsigned int mgmt_invalidate_icds(struct beiscsi_hba *phba,
req->icd_count++;
inv_tbl++;
}
- sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
- sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
- sge->len = cpu_to_le32(nonemb_cmd.size);
+ sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
+ sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
+ sge->len = cpu_to_le32(nonemb_cmd->size);
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
- if (nonemb_cmd.va)
- pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
- nonemb_cmd.va, nonemb_cmd.dma);
return tag;
}
@@ -269,7 +256,9 @@ unsigned int mgmt_upload_connection(struct beiscsi_hba *phba,
int mgmt_open_connection(struct beiscsi_hba *phba,
struct sockaddr *dst_addr,
- struct beiscsi_endpoint *beiscsi_ep)
+ struct beiscsi_endpoint *beiscsi_ep,
+ struct be_dma_mem *nonemb_cmd)
+
{
struct hwi_controller *phwi_ctrlr;
struct hwi_context_memory *phwi_context;
@@ -285,6 +274,7 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
unsigned int tag = 0;
unsigned int i;
unsigned short cid = beiscsi_ep->ep_cid;
+ struct be_sge *sge;
phwi_ctrlr = phba->phwi_ctrlr;
phwi_context = phwi_ctrlr->phwi_ctxt;
@@ -300,10 +290,14 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
return tag;
}
wrb = wrb_from_mccq(phba);
- req = embedded_payload(wrb);
+ memset(wrb, 0, sizeof(*wrb));
+ sge = nonembedded_sgl(wrb);
+
+ req = nonemb_cmd->va;
+ memset(req, 0, sizeof(*req));
wrb->tag0 |= tag;
- be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+ be_wrb_hdr_prepare(wrb, sizeof(*req), true, 1);
be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
sizeof(*req));
@@ -347,6 +341,9 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
req->do_offload = 1;
req->dataout_template_pa.lo = ptemplate_address->lo;
req->dataout_template_pa.hi = ptemplate_address->hi;
+ sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
+ sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
+ sge->len = cpu_to_le32(nonemb_cmd->size);
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
return tag;
diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
index 74b885a..b9acedf 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.h
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -87,15 +87,18 @@ struct mcc_wrb {
};
int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute);
-int mgmt_open_connection(struct beiscsi_hba *phba, struct sockaddr *dst_addr,
- struct beiscsi_endpoint *beiscsi_ep);
+int mgmt_open_connection(struct beiscsi_hba *phba,
+ struct sockaddr *dst_addr,
+ struct beiscsi_endpoint *beiscsi_ep,
+ struct be_dma_mem *nonemb_cmd);
unsigned int mgmt_upload_connection(struct beiscsi_hba *phba,
unsigned short cid,
unsigned int upload_flag);
unsigned int mgmt_invalidate_icds(struct beiscsi_hba *phba,
struct invalidate_command_table *inv_tbl,
- unsigned int num_invalidate, unsigned int cid);
+ unsigned int num_invalidate, unsigned int cid,
+ struct be_dma_mem *nonemb_cmd);
struct iscsi_invalidate_connection_params_in {
struct be_cmd_req_hdr hdr;
--
1.6.5.2
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
