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authorYevgeny Petrilin <yevgenyp@mellanox.co.il>2010-08-24 05:46:18 +0200
committerDavid S. Miller <davem@davemloft.net>2010-08-24 23:54:51 +0200
commite7c1c2c46201e46f8ce817196507d2ffd3dafd8e (patch)
tree33579da64d2c5dc4502518496097dcf9737e9eb4 /drivers/net/mlx4/en_tx.c
parentmlx4_en: Validate port up prior to transmitting (diff)
downloadlinux-e7c1c2c46201e46f8ce817196507d2ffd3dafd8e.tar.xz
linux-e7c1c2c46201e46f8ce817196507d2ffd3dafd8e.zip
mlx4_en: Added self diagnostics test implementation
The selftest includes 5 features: 1. Interrupt test: Executing commands and receiving command completion on all our interrupt vectors. 2. Link test: Verifying we are connected to valid link partner. 3. Speed test: Check that we negotiated link speed correctly. 4. Registers test: Activate HW health check command. 5. Loopback test: Send a packet on loopback interface and catch it on RX side. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/mlx4/en_tx.c')
-rw-r--r--drivers/net/mlx4/en_tx.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c
index 3deabd1d0357..b875f9c38848 100644
--- a/drivers/net/mlx4/en_tx.c
+++ b/drivers/net/mlx4/en_tx.c
@@ -600,6 +600,9 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
struct mlx4_wqe_data_seg *data;
struct skb_frag_struct *frag;
struct mlx4_en_tx_info *tx_info;
+ struct ethhdr *ethh;
+ u64 mac;
+ u32 mac_l, mac_h;
int tx_ind = 0;
int nr_txbb;
int desc_size;
@@ -679,6 +682,19 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
priv->port_stats.tx_chksum_offload++;
}
+ if (unlikely(priv->validate_loopback)) {
+ /* Copy dst mac address to wqe */
+ skb_reset_mac_header(skb);
+ ethh = eth_hdr(skb);
+ if (ethh && ethh->h_dest) {
+ mac = mlx4_en_mac_to_u64(ethh->h_dest);
+ mac_h = (u32) ((mac & 0xffff00000000ULL) >> 16);
+ mac_l = (u32) (mac & 0xffffffff);
+ tx_desc->ctrl.srcrb_flags |= cpu_to_be32(mac_h);
+ tx_desc->ctrl.imm = cpu_to_be32(mac_l);
+ }
+ }
+
/* Handle LSO (TSO) packets */
if (lso_header_size) {
/* Mark opcode as LSO */