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bnx2x: Pause settings

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Pause settings
- 1G pause was not working due to missing write to the emac block
  (TX_MODE_FLOW_EN)
- The flow control should use the negotiated result (after autoneg) so
  we should save both the requested autoneg and the result
- The HW credits with flow control at 1G speed were not optimized and
  caused low throughput
- It is recommended to turn off flow control if the MTU is bigger than
  5000B due to internal buffers size

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yaniv Rosner
2008-08-13 15:56:17 -07:00
committed by David S. Miller
parent 57963ed94c
commit 8c99e7b043
4 changed files with 128 additions and 91 deletions
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4
drivers/net/bnx2x_link.h
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@@ -58,11 +58,13 @@ struct link_params {
u16 req_duplex;
u16 req_flow_ctrl;
u16 req_fc_auto_adv; /* Should be set to TX / BOTH when
req_flow_ctrl is set to AUTO */
u16 req_line_speed; /* Also determine AutoNeg */
/* Device parameters */
u8 mac_addr[6];
u16 mtu;
/* shmem parameters */