diff options
| author | Linsys Contractor Mithlesh Thukral <mithlesh@netxen.com> | 2007-03-13 04:15:06 -0800 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-03-15 10:59:54 -0400 |
| commit | b58ecad8d6ca83e97cd2928a439efb49267539dc (patch) | |
| tree | 691bfcc04a909bd3e77550d7abd15595c08cb4ac /drivers/net/netxen/netxen_nic_init.c | |
| parent | 8b902aea40544bc9e4de913b491dc3a3411fd5d0 (diff) | |
| download | blackbird-op-linux-b58ecad8d6ca83e97cd2928a439efb49267539dc.tar.gz blackbird-op-linux-b58ecad8d6ca83e97cd2928a439efb49267539dc.zip | |
NetXen: Fix softlockup seen during hardware access
NetXen: This will fix a softlock seen on some machines.
The reason was too much time was spent waiting for hardware access
to go through.
Signed-off by: Mithlesh Thukral <mithlesh@netxen.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/netxen/netxen_nic_init.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_init.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c index 586d32b676af..229aa1c4fb79 100644 --- a/drivers/net/netxen/netxen_nic_init.c +++ b/drivers/net/netxen/netxen_nic_init.c @@ -42,6 +42,8 @@ struct crb_addr_pair { u32 data; }; +unsigned long last_schedule_time; + #define NETXEN_MAX_CRB_XFORM 60 static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM]; #define NETXEN_ADDR_ERROR (0xffffffff) @@ -404,9 +406,14 @@ static inline int do_rom_fast_write(struct netxen_adapter *adapter, int addr, static inline int do_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp) { + if (jiffies > (last_schedule_time + (8 * HZ))) { + last_schedule_time = jiffies; + schedule(); + } + netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); - udelay(70); /* prevent bursting on CRB */ + udelay(100); /* prevent bursting on CRB */ netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb); if (netxen_wait_rom_done(adapter)) { @@ -415,7 +422,7 @@ do_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp) } /* reset abyte_cnt and dummy_byte_cnt */ netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); - udelay(70); /* prevent bursting on CRB */ + udelay(100); /* prevent bursting on CRB */ netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA); |
