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authorBen Hutchings <bhutchings@solarflare.com>2009-11-29 03:42:18 +0000
committerDavid S. Miller <davem@davemloft.net>2009-11-29 16:46:26 -0800
commit4b0d29dcfca9eafbf6e940862ab022df3ef2dd6f (patch)
tree13af38825d9c0f290f6486f2ae38dc8c55061723 /drivers/net/sfc/falcon_xmac.c
parent674979d33566ab7e524e25fdc227923e27a3fb78 (diff)
downloadop-kernel-dev-4b0d29dcfca9eafbf6e940862ab022df3ef2dd6f.zip
op-kernel-dev-4b0d29dcfca9eafbf6e940862ab022df3ef2dd6f.tar.gz
sfc: Turn pause frame generation on and off at the MAC, not the RX FIFO
Pause frame generation is gated by both RX_XOFF_MAC_EN and an enable bit in each MAC. RX_XOFF_MAC_EN bit always reads back as 0 so we need to set it correctly every time we modify RX_CFG_REG. Simplify this by always setting it to 1 and only changing the enable bits in the MACs. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc/falcon_xmac.c')
-rw-r--r--drivers/net/sfc/falcon_xmac.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c
index 1523efd..60dc097 100644
--- a/drivers/net/sfc/falcon_xmac.c
+++ b/drivers/net/sfc/falcon_xmac.c
@@ -148,6 +148,7 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
unsigned int max_frame_len;
efx_oword_t reg;
bool rx_fc = !!(efx->link_state.fc & EFX_FC_RX);
+ bool tx_fc = !!(efx->link_state.fc & EFX_FC_TX);
/* Configure MAC - cut-thru mode is hard wired on */
EFX_POPULATE_OWORD_3(reg,
@@ -162,7 +163,7 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
FRF_AB_XM_TX_PRMBL, 1,
FRF_AB_XM_AUTO_PAD, 1,
FRF_AB_XM_TXCRC, 1,
- FRF_AB_XM_FCNTL, 1,
+ FRF_AB_XM_FCNTL, tx_fc,
FRF_AB_XM_IPG, 0x3);
efx_writeo(efx, &reg, FR_AB_XM_TX_CFG);
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