diff options
| author | Yi Zou <yi.zou@intel.com> | 2009-11-20 14:54:57 -0800 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2009-12-04 12:01:55 -0600 |
| commit | 8cdffdccd948ea4872b7b65280bc04f2fa93fc96 (patch) | |
| tree | 7713d23f0a066e15b0f9c148bda62fd8db4fec53 | |
| parent | 6580bbd0afe6ba1be5d53b331e92a7690046c923 (diff) | |
[SCSI] libfcoe: add checking disable flag in FIP_FKA_ADV
When the D bit is set if the FKA_ADV_Period of the FIP Discovery
Advertisement, the ENode should not transmit period ENode FIP Keep Alive and
VN_Port FIP Keep Alive (FC-BB-5 Rev2, 7.8.3.13).
Note that fcf->flags is taken directly from the fip_header, I am claiming one
bit for the purpose of the FIP_FKA_Period D bit as FIP_FL_FK_ADV_B, and use
FIP_HEADER_FLAGS as bitmask for bits used in fip_header.
Signed-off-by: Yi Zou <yi.zou@intel.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/fcoe/libfcoe.c | 4 | ||||
| -rw-r--r-- | include/scsi/fc/fc_fip.h | 12 | ||||
| -rw-r--r-- | include/scsi/libfcoe.h | 1 |
3 files changed, 15 insertions, 2 deletions
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c index 3c501d4973e..9961fd7310b 100644 --- a/drivers/scsi/fcoe/libfcoe.c +++ b/drivers/scsi/fcoe/libfcoe.c @@ -665,6 +665,8 @@ static int fcoe_ctlr_parse_adv(struct fcoe_ctlr *fip, if (dlen != sizeof(struct fip_fka_desc)) goto len_err; fka = (struct fip_fka_desc *)desc; + if (fka->fd_flags & FIP_FKA_ADV_D) + fcf->fd_flags = 1; t = ntohl(fka->fd_fka_period); if (t >= FCOE_CTLR_MIN_FKA) fcf->fka_period = msecs_to_jiffies(t); @@ -1160,7 +1162,7 @@ static void fcoe_ctlr_timeout(unsigned long arg) } } - if (sel) { + if (sel && !sel->fd_flags) { if (time_after_eq(jiffies, fip->ctlr_ka_time)) { fip->ctlr_ka_time = jiffies + sel->fka_period; fip->send_ctlr_ka = 1; diff --git a/include/scsi/fc/fc_fip.h b/include/scsi/fc/fc_fip.h index 3d138c1fcf8..17baa19380f 100644 --- a/include/scsi/fc/fc_fip.h +++ b/include/scsi/fc/fc_fip.h @@ -214,11 +214,21 @@ struct fip_vn_desc { */ struct fip_fka_desc { struct fip_desc fd_desc; - __u8 fd_resvd[2]; + __u8 fd_resvd; + __u8 fd_flags; /* bit0 is fka disable flag */ __be32 fd_fka_period; /* adv./keep-alive period in mS */ } __attribute__((packed)); /* + * flags for fip_fka_desc.fd_flags + */ +enum fip_fka_flags { + FIP_FKA_ADV_D = 0x01, /* no need for FKA from ENode */ +}; + +/* FIP_DT_FKA flags */ + +/* * FIP_DT_VENDOR descriptor. */ struct fip_vendor_desc { diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h index 3837872f196..c603f4a7e7f 100644 --- a/include/scsi/libfcoe.h +++ b/include/scsi/libfcoe.h @@ -155,6 +155,7 @@ struct fcoe_fcf { u8 pri; u16 flags; u32 fka_period; + u8 fd_flags:1; }; /* FIP API functions */ |