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netxen: avoid frequent firmware reset

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Restrict firmware reset to following cases -

o chip rev is NX2031 (firmare doesn't support heartbit).
o firmware is dead.
o previous attempt to init firmware had failed.
o we have got newer file firmware.

This speeds up module load tremendously (by upto 8 sec),
also avoids downtime for NCSI (management) pass-thru
traffic.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dhananjay Phadke
2009-07-01 11:41:43 +00:00
committed by David S. Miller
parent 98e31bb009
commit 67c38fc61a
4 changed files with 86 additions and 9 deletions
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1
drivers/net/netxen/netxen_nic_hdr.h
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@@ -853,6 +853,7 @@ enum {
#define NX_PEG_TUNE_CAPABILITY (NETXEN_CAM_RAM(0x02c))
#define NETXEN_CAM_RAM_DMA_WATCHDOG_CTRL (0x14)
#define NETXEN_PEG_ALIVE_COUNTER (NETXEN_CAM_RAM(0xb0))
#define ISR_MSI_INT_TRIGGER(FUNC) (NETXEN_PCIX_PS_REG(PCIX_MSI_F(FUNC)))
#define ISR_LEGACY_INT_TRIGGERED(VAL) (((VAL) & 0x300) == 0x200)