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| author | Giridhar Malavali <gmalavali@marvell.com> | 2018-12-21 09:33:45 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-01-11 22:08:15 -0500 |
| commit | 50b812755e9766fa0a1a28533f4d11a34a5b813e (patch) | |
| tree | 726439d7b8aad2a7fff5220e995601e946f244c4 /drivers/scsi/qla2xxx/qla_gbl.h | |
| parent | 7855d2ba1172d716d96a628af7c5bafa5725ac57 (diff) | |
| download | linux-50b812755e9766fa0a1a28533f4d11a34a5b813e.tar.bz2 | |
scsi: qla2xxx: Fix DMA error when the DIF sg buffer crosses 4GB boundary
When SGE buffer containing DIF information crosses 4G boundary, it results
in DMA error. This patch fixes this issue by calculating SGE buffer size
and if it crosses 4G boundary, driver will split it into multiple SGE
buffers to avoid DMA error.
Signed-off-by: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_gbl.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_gbl.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 3673fcdb033a..bcc17a7261e7 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -160,6 +160,7 @@ extern int ql2xautodetectsfp; extern int ql2xenablemsix; extern int qla2xuseresexchforels; extern int ql2xexlogins; +extern int ql2xdifbundlinginternalbuffers; extern int qla2x00_loop_reset(scsi_qla_host_t *); extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int); @@ -285,7 +286,7 @@ extern int qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *, srb_t *, extern int qla24xx_walk_and_build_sglist(struct qla_hw_data *, srb_t *, uint32_t *, uint16_t, struct qla_tc_param *); extern int qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *, srb_t *, - uint32_t *, uint16_t, struct qla_tc_param *); + uint32_t *, uint16_t, struct qla_tgt_cmd *); extern int qla24xx_get_one_block_sg(uint32_t, struct qla2_sgx *, uint32_t *); extern int qla24xx_configure_prot_mode(srb_t *, uint16_t *); extern int qla24xx_build_scsi_crc_2_iocbs(srb_t *, |