diff options
| author | Don Brace <don.brace@microsemi.com> | 2019-06-03 16:43:29 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-10 09:54:35 +0200 |
| commit | 26566830cacb73fabed8f53d8aec256b789570a1 (patch) | |
| tree | 4b89b995cc5ce1b9112f35baac932ad3ef961ae4 /drivers | |
| parent | 3904ebeaf899354d57d66ab484e276b39d0a8682 (diff) | |
scsi: hpsa: correct ioaccel2 chaining
[ Upstream commit 625d7d3518875c4d303c652a198feaa13d9f52d9 ]
- set ioaccel2_sg_element member 'chain_indicator' to IOACCEL2_LAST_SG for
the last s/g element.
- set ioaccel2_sg_element member 'chain_indicator' to IOACCEL2_CHAIN when
chaining.
Reviewed-by: Bader Ali - Saleh <bader.alisaleh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Matt Perricone <matt.perricone@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/hpsa.c | 7 | ||||
| -rw-r--r-- | drivers/scsi/hpsa_cmd.h | 1 |
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 5b4b7f9be2d7..6d520e8945f7 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4800,7 +4800,7 @@ static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h, curr_sg->reserved[0] = 0; curr_sg->reserved[1] = 0; curr_sg->reserved[2] = 0; - curr_sg->chain_indicator = 0x80; + curr_sg->chain_indicator = IOACCEL2_CHAIN; curr_sg = h->ioaccel2_cmd_sg_list[c->cmdindex]; } @@ -4817,6 +4817,11 @@ static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h, curr_sg++; } + /* + * Set the last s/g element bit + */ + (curr_sg - 1)->chain_indicator = IOACCEL2_LAST_SG; + switch (cmd->sc_data_direction) { case DMA_TO_DEVICE: cp->direction &= ~IOACCEL2_DIRECTION_MASK; diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h index 078afe448115..ecf15344b55d 100644 --- a/drivers/scsi/hpsa_cmd.h +++ b/drivers/scsi/hpsa_cmd.h @@ -516,6 +516,7 @@ struct ioaccel2_sg_element { u8 reserved[3]; u8 chain_indicator; #define IOACCEL2_CHAIN 0x80 +#define IOACCEL2_LAST_SG 0x40 }; /* |