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authorEdward Cree <ecree@solarflare.com>2020-08-14 13:26:22 +0100
committerDavid S. Miller <davem@davemloft.net>2020-08-14 14:07:16 -0700
commit068885434ccb20542e0d759aebbefe7a6724d85f (patch)
tree0b09ac803886c4b0af1e13ab88bacfd83570a668 /drivers/net/ethernet/sfc/net_driver.h
parente591d298cc7b9e2d82e701ab3fdfe7c97b692994 (diff)
downloadlinux-068885434ccb20542e0d759aebbefe7a6724d85f.tar.bz2
sfc: check hash is valid before using it
On EF100, the RX hash field in the packet prefix may not be valid (e.g. if the header parse failed), and this is indicated by a one-bit flag elsewhere in the packet prefix. Only call skb_set_hash() if the RSS_HASH_VALID bit is set. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/net_driver.h')
-rw-r--r--drivers/net/ethernet/sfc/net_driver.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 7bb7ecb480ae..dcb741d8bd11 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -1265,6 +1265,7 @@ struct efx_udp_tunnel {
* @rx_write: Write RX descriptors and doorbell
* @rx_defer_refill: Generate a refill reminder event
* @rx_packet: Receive the queued RX buffer on a channel
+ * @rx_buf_hash_valid: Determine whether the RX prefix contains a valid hash
* @ev_probe: Allocate resources for event queue
* @ev_init: Initialise event queue on the NIC
* @ev_fini: Deinitialise event queue on the NIC
@@ -1409,6 +1410,7 @@ struct efx_nic_type {
void (*rx_write)(struct efx_rx_queue *rx_queue);
void (*rx_defer_refill)(struct efx_rx_queue *rx_queue);
void (*rx_packet)(struct efx_channel *channel);
+ bool (*rx_buf_hash_valid)(const u8 *prefix);
int (*ev_probe)(struct efx_channel *channel);
int (*ev_init)(struct efx_channel *channel);
void (*ev_fini)(struct efx_channel *channel);