diff options
| author | Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> | 2015-08-28 06:38:36 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-11-09 16:01:29 -0800 |
| commit | c6992781d9e8086d592f95870092a59042d111a2 (patch) | |
| tree | 0d6dd0123e51a43d7bea3e5b7a8daa39d14d275c /drivers/scsi/aacraid/aacraid.h | |
| parent | 9022d375bd22869ba3e5ad3635f00427cfb934fc (diff) | |
| download | linux-stable-c6992781d9e8086d592f95870092a59042d111a2.tar.gz linux-stable-c6992781d9e8086d592f95870092a59042d111a2.tar.bz2 linux-stable-c6992781d9e8086d592f95870092a59042d111a2.zip | |
aacraid: Enable 64bit write to controller register
If writeq() not supported, then do atomic two 32bit write
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>
Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com>
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/aacraid/aacraid.h')
| -rw-r--r-- | drivers/scsi/aacraid/aacraid.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 62b099940345..e54f597a058d 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -844,6 +844,10 @@ struct src_registers { &((AEP)->regs.src.bar0->CSR)) #define src_writel(AEP, CSR, value) writel(value, \ &((AEP)->regs.src.bar0->CSR)) +#if defined(writeq) +#define src_writeq(AEP, CSR, value) writeq(value, \ + &((AEP)->regs.src.bar0->CSR)) +#endif #define SRC_ODR_SHIFT 12 #define SRC_IDR_SHIFT 9 @@ -1163,6 +1167,11 @@ struct aac_dev struct fsa_dev_info *fsa_dev; struct task_struct *thread; int cardtype; + /* + *This lock will protect the two 32-bit + *writes to the Inbound Queue + */ + spinlock_t iq_lock; /* * The following is the device specific extension. |