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| author | Anish Bhatt <anish@chelsio.com> | 2014-07-28 20:57:07 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-30 17:21:05 -0700 |
| commit | 16eecd9be4b05e3216b8b12707aa6f51fb197903 (patch) | |
| tree | 7a977163ae73a68afdbb468a7bc7076567af01e5 | |
| parent | 2d871aa07136fe6e576bde63072cf33e2c664e95 (diff) | |
| download | linux-stable-16eecd9be4b05e3216b8b12707aa6f51fb197903.tar.gz linux-stable-16eecd9be4b05e3216b8b12707aa6f51fb197903.tar.bz2 linux-stable-16eecd9be4b05e3216b8b12707aa6f51fb197903.zip | |
dcbnl : Fix misleading dcb_app->priority explanation
Current explanation of dcb_app->priority is wrong. It says priority is
expected to be a 3-bit unsigned integer which is only true when working with
DCBx-IEEE. Use of dcb_app->priority by DCBx-CEE expects it to be 802.1p user
priority bitmap. Updated accordingly
This affects the cxgb4 driver, but I will post those changes as part of a
larger changeset shortly.
Fixes: 3e29027af4372 ("dcbnl: add support for ieee8021Qaz attributes")
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/uapi/linux/dcbnl.h | 3 | ||||
| -rw-r--r-- | net/dcb/dcbnl.c | 5 |
2 files changed, 5 insertions, 3 deletions
diff --git a/include/uapi/linux/dcbnl.h b/include/uapi/linux/dcbnl.h index 6bb43382f3f3..e711f20dc522 100644 --- a/include/uapi/linux/dcbnl.h +++ b/include/uapi/linux/dcbnl.h @@ -148,7 +148,8 @@ struct cee_pfc { * * @selector: protocol identifier type * @protocol: protocol of type indicated - * @priority: 3-bit unsigned integer indicating priority + * @priority: 3-bit unsigned integer indicating priority for IEEE + * 8-bit 802.1p user priority bitmap for CEE * * ---- * Selector field values diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c index c34af7a1d2d4..ca11d283bbeb 100644 --- a/net/dcb/dcbnl.c +++ b/net/dcb/dcbnl.c @@ -1776,7 +1776,7 @@ EXPORT_SYMBOL(dcb_getapp); * * Priority 0 is an invalid priority in CEE spec. This routine * removes applications from the app list if the priority is - * set to zero. + * set to zero. Priority is expected to be 8-bit 802.1p user priority bitmap */ int dcb_setapp(struct net_device *dev, struct dcb_app *new) { @@ -1837,7 +1837,8 @@ EXPORT_SYMBOL(dcb_ieee_getapp_mask); * * This adds Application data to the list. Multiple application * entries may exists for the same selector and protocol as long - * as the priorities are different. + * as the priorities are different. Priority is expected to be a + * 3-bit unsigned integer */ int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new) { |