diff options
| author |   Joe Carnuccio <joe.carnuccio@qlogic.com> | 2014-04-11 16:54:37 -0400 |
|---|---|---|
| committer |   Christoph Hellwig <hch@lst.de> | 2014-05-19 13:31:04 +0200 |
| commit | 7c6300e3941da8e84bf5faf1358bf3909c5ef97e (patch) | |
| tree | ea02446a9501baeb915d8ef39fa74f97cb7271bf /drivers/scsi/qla2xxx/qla_iocb.c | |
| parent | qla2xxx: ISP27xx firmware dump template spec updates (including T274). (diff) | |
| download | linux-dev-7c6300e3941da8e84bf5faf1358bf3909c5ef97e.tar.xz linux-dev-7c6300e3941da8e84bf5faf1358bf3909c5ef97e.zip | |
qla2xxx: ISP27xx queue index shadow registers.
For ISP27xx use the request/response queue index shadow registers
to avoid directly access them on the PCI bus.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_iocb.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_iocb.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 8707a64a0770..af83132141f7 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -1478,8 +1478,8 @@ qla24xx_start_scsi(srb_t *sp) tot_dsds = nseg; req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); if (req->cnt < (req_cnt + 2)) { - cnt = RD_REG_DWORD_RELAXED(req->req_q_out); - + cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : + RD_REG_DWORD_RELAXED(req->req_q_out); if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else @@ -1697,8 +1697,8 @@ qla24xx_dif_start_scsi(srb_t *sp) tot_prot_dsds = nseg; tot_dsds += nseg; if (req->cnt < (req_cnt + 2)) { - cnt = RD_REG_DWORD_RELAXED(req->req_q_out); - + cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : + RD_REG_DWORD_RELAXED(req->req_q_out); if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else @@ -2825,8 +2825,8 @@ qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) /* Check for room on request queue. */ if (req->cnt < req_cnt + 2) { - cnt = RD_REG_DWORD_RELAXED(req->req_q_out); - + cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : + RD_REG_DWORD_RELAXED(req->req_q_out); if (req->ring_index < cnt) req->cnt = cnt - req->ring_index; else |