diff options
| author |   Sunil Goutham <sgoutham@cavium.com> | 2015-12-02 15:36:17 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-12-02 15:58:50 -0500 |
| commit | bc69fdfc6c13b7350be9bcb48328d8f231ed98bb (patch) | |
| tree | 96c41f3f33164d7591aafb330b9cb2001786ad60 /drivers/net/ethernet/cavium/thunder/thunder_bgx.c | |
| parent | net: thunderx: Switchon carrier only upon interface link up (diff) | |
| download | linux-dev-bc69fdfc6c13b7350be9bcb48328d8f231ed98bb.tar.xz linux-dev-bc69fdfc6c13b7350be9bcb48328d8f231ed98bb.zip | |
net: thunderx: Enable BGX LMAC's RX/TX only after VF is up
Enable or disable BGX LMAC's RX/TX based on corresponding VF's
status. If otherwise, when multiple LMAC's physical link is up
then packets from all LMAC's whose corresponding VF is not yet
initialized will get forwarded to VF0. This is due to VNIC's default
configuration where CPI, RSSI e.t.c point to VF0/QSET0/RQ0.
This patch will prevent multiple copies of packets on VF0.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/thunder_bgx.c')
| -rw-r--r-- | drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index d77e41a459b9..9df26c2263bc 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -186,6 +186,23 @@ void bgx_set_lmac_mac(int node, int bgx_idx, int lmacid, const u8 *mac) } EXPORT_SYMBOL(bgx_set_lmac_mac); +void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable) +{ + struct bgx *bgx = bgx_vnic[(node * MAX_BGX_PER_CN88XX) + bgx_idx]; + u64 cfg; + + if (!bgx) + return; + + cfg = bgx_reg_read(bgx, lmacid, BGX_CMRX_CFG); + if (enable) + cfg |= CMR_PKT_RX_EN | CMR_PKT_TX_EN; + else + cfg &= ~(CMR_PKT_RX_EN | CMR_PKT_TX_EN); + bgx_reg_write(bgx, lmacid, BGX_CMRX_CFG, cfg); +} +EXPORT_SYMBOL(bgx_lmac_rx_tx_enable); + static void bgx_sgmii_change_link_state(struct lmac *lmac) { struct bgx *bgx = lmac->bgx; @@ -656,8 +673,7 @@ static int bgx_lmac_enable(struct bgx *bgx, u8 lmacid) } /* Enable lmac */ - bgx_reg_modify(bgx, lmacid, BGX_CMRX_CFG, - CMR_EN | CMR_PKT_RX_EN | CMR_PKT_TX_EN); + bgx_reg_modify(bgx, lmacid, BGX_CMRX_CFG, CMR_EN); /* Restore default cfg, incase low level firmware changed it */ bgx_reg_write(bgx, lmacid, BGX_CMRX_RX_DMAC_CTL, 0x03); |