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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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4
drivers/net/netxen/netxen_nic.h
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@ -625,6 +625,7 @@ struct netxen_new_user_info {
#define NX_P2_MN_ROMIMAGE 0
#define NX_P3_CT_ROMIMAGE 1
#define NX_P3_MN_ROMIMAGE 2
#define NX_FLASH_ROMIMAGE 3
#define NETXEN_USER_START_OLD NETXEN_PXE_START /* for backward compatibility */
@ -1254,7 +1255,7 @@ struct netxen_adapter {
u32 resv3;
u8 has_link_events;
u8 resv1;
u8 fw_type;
u16 tx_context_id;
u16 mtu;
u16 is_up;
@ -1398,6 +1399,7 @@ void netxen_free_adapter_offload(struct netxen_adapter *adapter);
int netxen_initialize_adapter_offload(struct netxen_adapter *adapter);
int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val);
int netxen_load_firmware(struct netxen_adapter *adapter);
int netxen_need_fw_reset(struct netxen_adapter *adapter);
void netxen_request_firmware(struct netxen_adapter *adapter);
void netxen_release_firmware(struct netxen_adapter *adapter);
int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose);