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| author |   Joe Eykholt <jeykholt@cisco.com> | 2010-07-20 15:19:42 -0700 |
|---|---|---|
| committer |   James Bottomley <James.Bottomley@suse.de> | 2010-07-28 09:05:49 -0500 |
| commit | f90377abcab2e305450ee76a0f9042907560c5d8 (patch) | |
| tree | 6ed2f707f8c15162bcca4a7f44a3a97ba09172ad | |
| parent | [SCSI] libfc: convert rport lookup to be RCU safe (diff) | |
| download | linux-dev-f90377abcab2e305450ee76a0f9042907560c5d8.tar.xz linux-dev-f90377abcab2e305450ee76a0f9042907560c5d8.zip | |
[SCSI] libfc: provide space for LLD after remote port structure
Add pre-zeroed space after the allocation for fc_rport_priv
for use by the lower-level driver.
This is primarily for VN2VN FIP mode, but could be used in
other ways someday.
The space required is specified in lport->rport_priv_size.
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| -rw-r--r-- | drivers/scsi/libfc/fc_rport.c | 2 | ||||
| -rw-r--r-- | include/scsi/libfc.h | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c index 6b569732f892..6d68482649c9 100644 --- a/drivers/scsi/libfc/fc_rport.c +++ b/drivers/scsi/libfc/fc_rport.c @@ -127,7 +127,7 @@ static struct fc_rport_priv *fc_rport_create(struct fc_lport *lport, if (rdata) return rdata; - rdata = kzalloc(sizeof(*rdata), GFP_KERNEL); + rdata = kzalloc(sizeof(*rdata) + lport->rport_priv_size, GFP_KERNEL); if (!rdata) return NULL; diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index b0310b9b3469..fcbee8c38b0c 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -799,6 +799,7 @@ struct fc_disc { * @mfs: The maximum Fibre Channel payload size * @max_retry_count: The maximum retry attempts * @max_rport_retry_count: The maximum remote port retry attempts + * @rport_priv_size: Size needed by driver after struct fc_rport_priv * @lro_xid: The maximum XID for LRO * @lso_max: The maximum large offload send size * @fcts: FC-4 type mask @@ -848,6 +849,7 @@ struct fc_lport { u32 mfs; u8 max_retry_count; u8 max_rport_retry_count; + u16 rport_priv_size; u16 link_speed; u16 link_supported_speeds; u16 lro_xid; |