sfc: Add support for TX MAC filters
On Siena each TX queue can be configured to send only packets for
which there is a TX MAC filter that matches the source MAC address,
queue ID, and optionally VID. This will be used to implement the
'spoofchk' feature for SR-IOV virtual functions.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
diff --git a/drivers/net/ethernet/sfc/filter.h b/drivers/net/ethernet/sfc/filter.h
index 4519978..3c77802 100644
--- a/drivers/net/ethernet/sfc/filter.h
+++ b/drivers/net/ethernet/sfc/filter.h
@@ -43,7 +43,8 @@
* enum efx_filter_priority - priority of a hardware filter specification
* @EFX_FILTER_PRI_HINT: Performance hint
* @EFX_FILTER_PRI_MANUAL: Manually configured filter
- * @EFX_FILTER_PRI_REQUIRED: Required for correct behaviour
+ * @EFX_FILTER_PRI_REQUIRED: Required for correct behaviour (user-level
+ * networking and SR-IOV)
*/
enum efx_filter_priority {
EFX_FILTER_PRI_HINT = 0,
@@ -64,12 +65,14 @@
* any IP filter that matches the same packet. By default, IP
* filters take precedence.
* @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_OVERRIDE_IP = 0x04,
EFX_FILTER_FLAG_RX = 0x08,
+ EFX_FILTER_FLAG_TX = 0x10,
};
/**
@@ -107,6 +110,15 @@
spec->dmaq_id = rxq_id;
}
+static inline void efx_filter_init_tx(struct efx_filter_spec *spec,
+ unsigned txq_id)
+{
+ spec->type = EFX_FILTER_UNSPEC;
+ spec->priority = EFX_FILTER_PRI_REQUIRED;
+ spec->flags = EFX_FILTER_FLAG_TX;
+ spec->dmaq_id = txq_id;
+}
+
extern int efx_filter_set_ipv4_local(struct efx_filter_spec *spec, u8 proto,
__be32 host, __be16 port);
extern int efx_filter_get_ipv4_local(const struct efx_filter_spec *spec,