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[BNX2]: Enhance the heartbeat.

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In addition to the periodic heartbeat, we're adding a heartbeat
request interrupt when the heartbeat is late.  This is needed during
netpoll where the timer is not available.  -rt kernels will also
benefit since the timer is not as accurate.

[ We discussed this patch last time and we decided that the -rt
  kernel problem alone did not justify this patch.  I think the
  netpoll problem makes this patch necessary. ]

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan
2007-07-07 22:51:36 -07:00
committed by David S. Miller
parent b8a7ce7bed
commit df149d70e1
2 changed files with 25 additions and 4 deletions
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3
drivers/net/bnx2.h
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@@ -6338,6 +6338,8 @@ struct l2_fhdr {
#define RX_COPY_THRESH 92
#define BNX2_MISC_ENABLE_DEFAULT 0x7ffffff
#define DMA_READ_CHANS 5
#define DMA_WRITE_CHANS 3
@@ -6839,6 +6841,7 @@ struct fw_info {
#define BNX2_LINK_STATUS_SERDES_LINK (1<<20)
#define BNX2_LINK_STATUS_PARTNER_AD_2500FULL (1<<21)
#define BNX2_LINK_STATUS_PARTNER_AD_2500HALF (1<<22)
#define BNX2_LINK_STATUS_HEART_BEAT_EXPIRED (1<<31)
#define BNX2_DRV_PULSE_MB 0x00000010
#define BNX2_DRV_PULSE_SEQ_MASK 0x00007fff