diff options
author | Ben Hutchings <bhutchings@solarflare.com> | 2013-11-21 19:02:18 +0000 |
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committer | Ben Hutchings <bhutchings@solarflare.com> | 2013-12-12 22:07:22 +0000 |
commit | 7665d1abea22cb44d4f0bac99e77275eba39bbf1 (patch) | |
tree | b50444ccc9597cff1871e7c0e04f890f8a85b247 /drivers/net/ethernet/sfc/filter.h | |
parent | d43050c0c7d930cdeb10fb9201d9e2d005cef02a (diff) | |
download | linux-7665d1abea22cb44d4f0bac99e77275eba39bbf1.tar.bz2 |
sfc: Change priority and flags for automatic MAC filters
MAC filters inserted automatically by the driver, based on the device
address list (EF10) or no-match filters (Siena), should be overridable
at MANUAL or REQUIRED priority. Currently they themselves have
REQUIRED priority and this requires some odd special-casing.
We also can't reliably tell whether such a MAC filter has or has
not been overridden. We just remember that it is wanted by the
stack (RX_STACK flag).
Add another priority level, AUTO, between HINT and MANUAL, and
use this for the automatic filters while they have not been
overridden. Remove the RX_STACK flag. Add an RX_OVER_AUTO
flag which is set only when an AUTO filter has been overridden
(or was requested to be inserted while a higher-priority filter
existed).
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/ethernet/sfc/filter.h')
-rw-r--r-- | drivers/net/ethernet/sfc/filter.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/net/ethernet/sfc/filter.h b/drivers/net/ethernet/sfc/filter.h index 63c77a557178..3ef298d3c47e 100644 --- a/drivers/net/ethernet/sfc/filter.h +++ b/drivers/net/ethernet/sfc/filter.h @@ -59,12 +59,16 @@ enum efx_filter_match_flags { /** * enum efx_filter_priority - priority of a hardware filter specification * @EFX_FILTER_PRI_HINT: Performance hint + * @EFX_FILTER_PRI_AUTO: Automatic filter based on device address list + * or hardware requirements. This may only be used by the filter + * implementation for each NIC type. * @EFX_FILTER_PRI_MANUAL: Manually configured filter * @EFX_FILTER_PRI_REQUIRED: Required for correct behaviour (user-level * networking and SR-IOV) */ enum efx_filter_priority { EFX_FILTER_PRI_HINT = 0, + EFX_FILTER_PRI_AUTO, EFX_FILTER_PRI_MANUAL, EFX_FILTER_PRI_REQUIRED, }; @@ -78,19 +82,18 @@ enum efx_filter_priority { * according to the indirection table. * @EFX_FILTER_FLAG_RX_SCATTER: Enable DMA scatter on the receiving * queue. - * @EFX_FILTER_FLAG_RX_STACK: Indicates a filter inserted for the - * network stack. The filter must have a priority of - * %EFX_FILTER_PRI_REQUIRED. It can be steered by a replacement - * request with priority %EFX_FILTER_PRI_MANUAL, and a removal - * request with priority %EFX_FILTER_PRI_MANUAL will reset the - * steering (but not remove the filter). + * @EFX_FILTER_FLAG_RX_OVER_AUTO: Indicates a filter that is + * overriding an automatic filter (priority + * %EFX_FILTER_PRI_AUTO). This may only be set by the filter + * implementation for each type. A removal request will restore + * the automatic filter in its place. * @EFX_FILTER_FLAG_RX: Filter is for RX * @EFX_FILTER_FLAG_TX: Filter is for TX */ enum efx_filter_flags { EFX_FILTER_FLAG_RX_RSS = 0x01, EFX_FILTER_FLAG_RX_SCATTER = 0x02, - EFX_FILTER_FLAG_RX_STACK = 0x04, + EFX_FILTER_FLAG_RX_OVER_AUTO = 0x04, EFX_FILTER_FLAG_RX = 0x08, EFX_FILTER_FLAG_TX = 0x10, }; |