diff options
| author | David Daney <david.daney@cavium.com> | 2013-06-19 17:40:19 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-06-19 22:12:48 -0700 |
| commit | 906996d6eb8fbd5ee4241a0e8e0fb013423c934d (patch) | |
| tree | 511bd7b48159d078129e95c73a41bbd2133a272f /drivers | |
| parent | c0353c7b5da4cbd2ab8227e84bbc9c79890f24ce (diff) | |
netdev: octeon_mgmt: Correct tx IFG workaround.
The previous fix was still too agressive to meet ieee specs. Increase
to (14, 10).
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/octeon/octeon_mgmt.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c index 921729f9c85..a603faf64a9 100644 --- a/drivers/net/ethernet/octeon/octeon_mgmt.c +++ b/drivers/net/ethernet/octeon/octeon_mgmt.c @@ -1141,10 +1141,13 @@ static int octeon_mgmt_open(struct net_device *netdev) /* For compensation state to lock. */ ndelay(1040 * NS_PER_PHY_CLK); - /* Some Ethernet switches cannot handle standard - * Interframe Gap, increase to 16 bytes. + /* Default Interframe Gaps are too small. Recommended + * workaround is. + * + * AGL_GMX_TX_IFG[IFG1]=14 + * AGL_GMX_TX_IFG[IFG2]=10 */ - cvmx_write_csr(CVMX_AGL_GMX_TX_IFG, 0x88); + cvmx_write_csr(CVMX_AGL_GMX_TX_IFG, 0xae); } octeon_mgmt_rx_fill_ring(netdev); |