openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[SCSI] bnx2i: Fixed packet error created when the sq_size is set to 16 

The number of chip's internal command cell, which is use to generate
SCSI cmd packets to the target, was not initialized correctly by
the driver when the sq_size is changed from the default 128.
This, in turn, will create a problem where the chip's transmit pipe
will erroneously reuse an old command cell that is no longer valid.
The fix is to correctly initialize the chip's command cell upon setup.

Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <jbottomley@parallels.com>
This commit is contained in:
Eddie Wai 2011-05-16 11:13:18 -07:00 committed by James Bottomley
parent 6b278656f2
commit 7287c63e98
2 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/scsi/bnx2i/bnx2i_hwi.c
View File

@ -1274,6 +1274,7 @@ int bnx2i_send_fw_iscsi_init_msg(struct bnx2i_hba *hba)
iscsi_init.dummy_buffer_addr_hi =
(u32) ((u64) hba->dummy_buf_dma >> 32);
hba->num_ccell = hba->max_sqes >> 1;
hba->ctx_ccell_tasks =
((hba->num_ccell & 0xFFFF) | (hba->max_sqes << 16));
iscsi_init.num_ccells_per_conn = hba->num_ccell;

3
drivers/scsi/bnx2i/bnx2i_iscsi.c
View File

@ -1208,6 +1208,9 @@ static int bnx2i_task_xmit(struct iscsi_task *task)
struct bnx2i_cmd *cmd = task->dd_data;
struct iscsi_cmd *hdr = (struct iscsi_cmd *) task->hdr;
if (bnx2i_conn->ep->num_active_cmds + 1 > hba->max_sqes)
return -ENOMEM;
/*
* If there is no scsi_cmnd this must be a mgmt task
*/