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Commit 906996d6 authored by David Daney's avatar David Daney Committed by David S. Miller
Browse files

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: default avatarDavid Daney <david.daney@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c0353c7b

drivers/net/ethernet/octeon/octeon_mgmt.c

+6 −3
Original line number Diff line number Diff line
@@ -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);