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[SCSI] be2iscsi: Move freeing of resources to stop_conn 

We need to hold on to ep resources untill invalidate and
  close connection are completed

Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Jayamohan Kallickal 2010-01-05 05:05:34 +05:30 коммит произвёл James Bottomley
Родитель 7da5087971
Коммит c24622886f
3 изменённых файлов: 21 добавлений и 34 удалений
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23
drivers/scsi/be2iscsi/be_iscsi.c
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@ -460,14 +460,12 @@ static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid)
* beiscsi_free_ep - free endpoint
* @ep: pointer to iscsi endpoint structure
*/
static void beiscsi_free_ep(struct iscsi_endpoint *ep)
static void beiscsi_free_ep(struct beiscsi_endpoint *beiscsi_ep)
{
struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
struct beiscsi_hba *phba = beiscsi_ep->phba;
beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
beiscsi_ep->phba = NULL;
iscsi_destroy_endpoint(ep);
}
/**
@ -498,7 +496,7 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
if (phba->state) {
ret = -EBUSY;
SE_DEBUG(DBG_LVL_1, "The Adapet state is Not UP \n");
SE_DEBUG(DBG_LVL_1, "The Adapter state is Not UP \n");
return ERR_PTR(ret);
}
@ -510,9 +508,10 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
beiscsi_ep = ep->dd_data;
beiscsi_ep->phba = phba;
beiscsi_ep->openiscsi_ep = ep;
if (beiscsi_open_conn(ep, NULL, dst_addr, non_blocking)) {
SE_DEBUG(DBG_LVL_1, "Failed in allocate iscsi cid\n");
SE_DEBUG(DBG_LVL_1, "Failed in beiscsi_open_conn \n");
ret = -ENOMEM;
goto free_ep;
}
@ -520,7 +519,7 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
return ep;
free_ep:
beiscsi_free_ep(ep);
beiscsi_free_ep(beiscsi_ep);
return ERR_PTR(ret);
}
@ -547,15 +546,14 @@ int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
* @ep: The iscsi endpoint
* @flag: The type of connection closure
*/
static int beiscsi_close_conn(struct iscsi_endpoint *ep, int flag)
static int beiscsi_close_conn(struct beiscsi_endpoint *beiscsi_ep, int flag)
{
int ret = 0;
struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
struct beiscsi_hba *phba = beiscsi_ep->phba;
if (MGMT_STATUS_SUCCESS !=
mgmt_upload_connection(phba, beiscsi_ep->ep_cid,
CONNECTION_UPLOAD_GRACEFUL)) {
flag)) {
SE_DEBUG(DBG_LVL_8, "upload failed for cid 0x%x",
beiscsi_ep->ep_cid);
ret = -1;
@ -575,19 +573,15 @@ void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
struct beiscsi_conn *beiscsi_conn;
struct beiscsi_endpoint *beiscsi_ep;
struct beiscsi_hba *phba;
int flag = 0;
beiscsi_ep = ep->dd_data;
phba = beiscsi_ep->phba;
SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect\n");
if (beiscsi_ep->conn) {
beiscsi_conn = beiscsi_ep->conn;
iscsi_suspend_queue(beiscsi_conn->conn);
beiscsi_close_conn(ep, flag);
}
beiscsi_free_ep(ep);
}
/**
@ -637,6 +631,9 @@ void beiscsi_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
"mgmt_invalidate_connection Failed for cid=%d \n",
beiscsi_ep->ep_cid);
}
beiscsi_close_conn(beiscsi_ep, CONNECTION_UPLOAD_GRACEFUL);
beiscsi_free_ep(beiscsi_ep);
iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
beiscsi_unbind_conn_to_cid(phba, beiscsi_ep->ep_cid);
iscsi_conn_stop(cls_conn, flag);
}

31
drivers/scsi/be2iscsi/be_main.c
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@ -1434,6 +1434,8 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
unsigned int tot_nump = 0;
struct beiscsi_conn *beiscsi_conn;
struct sgl_handle *psgl_handle = NULL;
struct beiscsi_endpoint *beiscsi_ep;
struct iscsi_endpoint *ep;
struct beiscsi_hba *phba;
cq = pbe_eq->cq;
@ -1449,28 +1451,15 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
dw[offsetof(struct amap_sol_cqe_ring,
icd_index) / 32] & SOL_ICD_INDEX_MASK)
>> 6)];
beiscsi_conn = phba->conn_table[psgl_handle->cid];
if (!beiscsi_conn || !beiscsi_conn->ep) {
shost_printk(KERN_WARNING, phba->shost,
"Connection table empty for cid = %d\n",
psgl_handle->cid);
return 0;
}
ep = phba->ep_array[psgl_handle->cid];
} else {
beiscsi_conn = phba->conn_table[(u32) ((sol->
dw[offsetof(struct amap_sol_cqe, cid) / 32] &
SOL_CID_MASK) >> 6) -
ep = phba->ep_array[(u32) ((sol->
dw[offsetof(struct amap_sol_cqe, cid) / 32] &
SOL_CID_MASK) >> 6) -
phba->fw_config.iscsi_cid_start];
if (!beiscsi_conn || !beiscsi_conn->ep) {
shost_printk(KERN_WARNING, phba->shost,
"Connection table empty for cid = %d\n",
(u32)(sol->dw[offsetof(struct amap_sol_cqe,
cid) / 32] & SOL_CID_MASK) >> 6);
return 0;
}
}
beiscsi_ep = ep->dd_data;
beiscsi_conn = beiscsi_ep->conn;
if (num_processed >= 32) {
hwi_ring_cq_db(phba, cq->id,
num_processed, 0, 0);
@ -3044,7 +3033,7 @@ static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
{
int i, new_cid;
phba->cid_array = kmalloc(sizeof(void *) * phba->params.cxns_per_ctrl,
phba->cid_array = kzalloc(sizeof(void *) * phba->params.cxns_per_ctrl,
GFP_KERNEL);
if (!phba->cid_array) {
shost_printk(KERN_ERR, phba->shost,
@ -3052,7 +3041,7 @@ static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
"hba_setup_cid_tbls\n");
return -ENOMEM;
}
phba->ep_array = kmalloc(sizeof(struct iscsi_endpoint *) *
phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) *
phba->params.cxns_per_ctrl * 2, GFP_KERNEL);
if (!phba->ep_array) {
shost_printk(KERN_ERR, phba->shost,

1
drivers/scsi/be2iscsi/be_mgmt.h
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@ -231,6 +231,7 @@ struct beiscsi_endpoint {
struct beiscsi_hba *phba;
struct beiscsi_sess *sess;
struct beiscsi_conn *conn;
struct iscsi_endpoint *openiscsi_ep;
unsigned short ip_type;
char dst6_addr[ISCSI_ADDRESS_BUF_LEN];
unsigned long dst_addr;