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[SCSI] cxgb3i: re-read ddp settings information after chip reset 

Orignally from Karen Xie, but merge conflicts/errors fixed up by
Mike Christie.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Mike Christie 2009-04-01 13:11:25 -05:00 committed by James Bottomley
parent 9fa1926afb
commit ed6f7744f9
2 changed files with 70 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/scsi/cxgb3i/cxgb3i.h
View File

@ -141,7 +141,7 @@ int cxgb3i_iscsi_init(void);
void cxgb3i_iscsi_cleanup(void);
struct cxgb3i_adapter *cxgb3i_adapter_find_by_tdev(struct t3cdev *);
struct cxgb3i_adapter *cxgb3i_adapter_open(struct t3cdev *);
void cxgb3i_adapter_open(struct t3cdev *);
void cxgb3i_adapter_close(struct t3cdev *);
struct cxgb3i_hba *cxgb3i_hba_find_by_netdev(struct net_device *);

114
drivers/scsi/cxgb3i/cxgb3i_iscsi.c
View File

@ -71,37 +71,34 @@ struct cxgb3i_adapter *cxgb3i_adapter_find_by_tdev(struct t3cdev *tdev)
return NULL;
}
/**
* cxgb3i_adapter_open - init a s3 adapter structure and any h/w settings
* @t3dev: t3cdev adapter
* return the resulting cxgb3i_adapter struct
*/
struct cxgb3i_adapter *cxgb3i_adapter_open(struct t3cdev *t3dev)
static inline int adapter_update(struct cxgb3i_adapter *snic)
{
struct cxgb3i_adapter *snic;
cxgb3i_log_info("snic 0x%p, t3dev 0x%p, updating.\n",
snic, snic->tdev);
return cxgb3i_adapter_ddp_info(snic->tdev, &snic->tag_format,
&snic->tx_max_size,
&snic->rx_max_size);
}
static int adapter_add(struct cxgb3i_adapter *snic)
{
struct t3cdev *t3dev = snic->tdev;
struct adapter *adapter = tdev2adap(t3dev);
int i;
int i, err;
snic = kzalloc(sizeof(*snic), GFP_KERNEL);
if (!snic) {
cxgb3i_api_debug("cxgb3 %s, OOM.\n", t3dev->name);
return NULL;
}
spin_lock_init(&snic->lock);
snic->tdev = t3dev;
snic->pdev = adapter->pdev;
snic->tag_format.sw_bits = sw_tag_idx_bits + sw_tag_age_bits;
if (cxgb3i_adapter_ddp_init(t3dev, &snic->tag_format,
err = cxgb3i_adapter_ddp_info(t3dev, &snic->tag_format,
&snic->tx_max_size,
&snic->rx_max_size) < 0)
goto free_snic;
&snic->rx_max_size);
if (err < 0)
return err;
for_each_port(adapter, i) {
snic->hba[i] = cxgb3i_hba_host_add(snic, adapter->port[i]);
if (!snic->hba[i])
goto ulp_cleanup;
return -EINVAL;
}
snic->hba_cnt = adapter->params.nports;
@ -110,13 +107,40 @@ struct cxgb3i_adapter *cxgb3i_adapter_open(struct t3cdev *t3dev)
list_add_tail(&snic->list_head, &cxgb3i_snic_list);
write_unlock(&cxgb3i_snic_rwlock);
return snic;
cxgb3i_log_info("t3dev 0x%p open, snic 0x%p, %u scsi hosts added.\n",
t3dev, snic, snic->hba_cnt);
return 0;
}
ulp_cleanup:
cxgb3i_adapter_ddp_cleanup(t3dev);
free_snic:
kfree(snic);
return NULL;
/**
* cxgb3i_adapter_open - init a s3 adapter structure and any h/w settings
* @t3dev: t3cdev adapter
*/
void cxgb3i_adapter_open(struct t3cdev *t3dev)
{
struct cxgb3i_adapter *snic = cxgb3i_adapter_find_by_tdev(t3dev);
int err;
if (snic)
err = adapter_update(snic);
else {
snic = kzalloc(sizeof(*snic), GFP_KERNEL);
if (snic) {
spin_lock_init(&snic->lock);
snic->tdev = t3dev;
err = adapter_add(snic);
} else
err = -ENOMEM;
}
if (err < 0) {
cxgb3i_log_info("snic 0x%p, f 0x%x, t3dev 0x%p open, err %d.\n",
snic, snic ? snic->flags : 0, t3dev, err);
if (snic) {
snic->flags &= ~CXGB3I_ADAPTER_FLAG_RESET;
cxgb3i_adapter_close(t3dev);
}
}
}
/**
@ -125,31 +149,29 @@ struct cxgb3i_adapter *cxgb3i_adapter_open(struct t3cdev *t3dev)
*/
void cxgb3i_adapter_close(struct t3cdev *t3dev)
{
struct cxgb3i_adapter *snic = cxgb3i_adapter_find_by_tdev(t3dev);
int i;
struct cxgb3i_adapter *snic;
if (!snic || snic->flags & CXGB3I_ADAPTER_FLAG_RESET) {
cxgb3i_log_info("t3dev 0x%p close, snic 0x%p, f 0x%x.\n",
t3dev, snic, snic ? snic->flags : 0);
return;
}
/* remove from the list */
write_lock(&cxgb3i_snic_rwlock);
list_for_each_entry(snic, &cxgb3i_snic_list, list_head) {
if (snic->tdev == t3dev) {
list_del(&snic->list_head);
break;
}
}
list_del(&snic->list_head);
write_unlock(&cxgb3i_snic_rwlock);
if (snic) {
for (i = 0; i < snic->hba_cnt; i++) {
if (snic->hba[i]) {
cxgb3i_hba_host_remove(snic->hba[i]);
snic->hba[i] = NULL;
}
for (i = 0; i < snic->hba_cnt; i++) {
if (snic->hba[i]) {
cxgb3i_hba_host_remove(snic->hba[i]);
snic->hba[i] = NULL;
}
/* release ddp resources */
cxgb3i_adapter_ddp_cleanup(snic->tdev);
kfree(snic);
}
cxgb3i_log_info("t3dev 0x%p close, snic 0x%p, %u scsi hosts removed.\n",
t3dev, snic, snic->hba_cnt);
kfree(snic);
}
/**
@ -189,7 +211,8 @@ struct cxgb3i_hba *cxgb3i_hba_host_add(struct cxgb3i_adapter *snic,
shost = iscsi_host_alloc(&cxgb3i_host_template,
sizeof(struct cxgb3i_hba), 1);
if (!shost) {
cxgb3i_log_info("iscsi_host_alloc failed.\n");
cxgb3i_log_info("snic 0x%p, ndev 0x%p, host_alloc failed.\n",
snic, ndev);
return NULL;
}
@ -207,7 +230,8 @@ struct cxgb3i_hba *cxgb3i_hba_host_add(struct cxgb3i_adapter *snic,
pci_dev_get(snic->pdev);
err = iscsi_host_add(shost, &snic->pdev->dev);
if (err) {
cxgb3i_log_info("iscsi_host_add failed.\n");
cxgb3i_log_info("snic 0x%p, ndev 0x%p, host_add failed.\n",
snic, ndev);
goto pci_dev_put;
}