diff options
| author | Giridhar Malavali <giridhar.malavali@qlogic.com> | 2010-05-29 02:08:28 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-07-27 21:01:27 +0400 |
| commit | 6907869d726c04362122afd92717f86915a69f96 (patch) | |
| tree | 2c522b76a5352a35a6344373c05ef9ef4eaf2d12 /drivers/scsi/qla2xxx/qla_nx.c | |
| parent | ba77ef53547883b6be06c0657d5dc1642ad43d0c (diff) | |
| download | linux-6907869d726c04362122afd92717f86915a69f96.tar.xz | |
[SCSI] qla2xxx: Enable CRB based doorbell posting for request queue as default for ISP 82xx.
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_nx.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_nx.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c index ee575b4efbee..e3e3ebdfe5d9 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -3372,11 +3372,16 @@ qla82xx_start_iocbs(srb_t *sp) dbval = 0x04 | (ha->portnum << 5); dbval = dbval | (req->id << 8) | (req->ring_index << 16); - WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval); - wmb(); - while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { - WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval); + if (ql2xdbwr) + qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); + else { + WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval); wmb(); + while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { + WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, + dbval); + wmb(); + } } } |