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| author | Sagi Grimberg <sagig@mellanox.com> | 2014-12-07 17:10:06 +0300 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2014-12-16 05:11:46 +0300 |
| commit | 5bb6e543d2a7d580ca56317fa38b394ab02638b4 (patch) | |
| tree | d7a87ff23ab5979dd73fa6c49315f3d94343198d /drivers/infiniband/ulp/iser/iscsi_iser.c | |
| parent | 06c7fb6776ddb0ece4bcee8061eeda4ed4a771dc (diff) | |
| download | linux-5bb6e543d2a7d580ca56317fa38b394ab02638b4.tar.xz | |
IB/iser: DIX update
Following few recent Block integrity updates, we align the iSER data
integrity offload settings with:
- Deprecate pi_guard module param
- Expose support for DIX type 0.
- Use scsi_transfer_length for the transfer length
- Get pi_interval, ref_tag, ref_remap, bg_type and
check_mask setting from scsi_cmnd
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/ulp/iser/iscsi_iser.c')
| -rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 0af32cdb34a1..6a594aac2290 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -97,7 +97,7 @@ module_param_named(pi_enable, iser_pi_enable, bool, 0644); MODULE_PARM_DESC(pi_enable, "Enable T10-PI offload support (default:disabled)"); module_param_named(pi_guard, iser_pi_guard, int, 0644); -MODULE_PARM_DESC(pi_guard, "T10-PI guard_type, 0:CRC|1:IP_CSUM (default:IP_CSUM)"); +MODULE_PARM_DESC(pi_guard, "T10-PI guard_type [deprecated]"); static struct workqueue_struct *release_wq; struct iser_global ig; @@ -574,12 +574,13 @@ iscsi_iser_session_destroy(struct iscsi_cls_session *cls_session) static inline unsigned int iser_dif_prot_caps(int prot_caps) { - return ((prot_caps & IB_PROT_T10DIF_TYPE_1) ? SHOST_DIF_TYPE1_PROTECTION | - SHOST_DIX_TYPE1_PROTECTION : 0) | - ((prot_caps & IB_PROT_T10DIF_TYPE_2) ? SHOST_DIF_TYPE2_PROTECTION | - SHOST_DIX_TYPE2_PROTECTION : 0) | - ((prot_caps & IB_PROT_T10DIF_TYPE_3) ? SHOST_DIF_TYPE3_PROTECTION | - SHOST_DIX_TYPE3_PROTECTION : 0); + return ((prot_caps & IB_PROT_T10DIF_TYPE_1) ? + SHOST_DIF_TYPE1_PROTECTION | SHOST_DIX_TYPE0_PROTECTION | + SHOST_DIX_TYPE1_PROTECTION : 0) | + ((prot_caps & IB_PROT_T10DIF_TYPE_2) ? + SHOST_DIF_TYPE2_PROTECTION | SHOST_DIX_TYPE2_PROTECTION : 0) | + ((prot_caps & IB_PROT_T10DIF_TYPE_3) ? + SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE3_PROTECTION : 0); } /** @@ -635,10 +636,8 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, u32 sig_caps = ib_conn->device->dev_attr.sig_prot_cap; scsi_host_set_prot(shost, iser_dif_prot_caps(sig_caps)); - if (iser_pi_guard) - scsi_host_set_guard(shost, SHOST_DIX_GUARD_IP); - else - scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC); + scsi_host_set_guard(shost, SHOST_DIX_GUARD_IP | + SHOST_DIX_GUARD_CRC); } if (iscsi_host_add(shost, |