diff options
| author | Chris Elmquist <chrise@sgi.com> | 2005-12-20 13:25:19 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2005-12-28 13:04:52 -0800 |
| commit | 091465d7514893a55dcf63e420698b21159c39a7 (patch) | |
| tree | cbfaedb45164d21d0d2f4af5efad2fc78dd37f92 | |
| parent | 67dbb4ea33731415fe09c62149a34f472719ac1d (diff) | |
| download | linux-3.10-091465d7514893a55dcf63e420698b21159c39a7.tar.gz linux-3.10-091465d7514893a55dcf63e420698b21159c39a7.tar.bz2 linux-3.10-091465d7514893a55dcf63e420698b21159c39a7.zip | |
[TG3]: ethtool -d hangs PCIe systems
Resubmitting after recommendation to use GET_REG32_1() instead of
GET_REG32_LOOP(..., 1). Retested. Problem remains fixed.
Prevent tg3_get_regs() from reading reserved and undocumented registers
at RX_CPU_BASE and TX_CPU_BASE offsets which caused hostile behavior
on PCIe platforms.
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/tg3.c | 9 | ||||
| -rw-r--r-- | drivers/net/tg3.h | 7 |
2 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index cefb0c08a68..ce252c58b3e 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -7151,8 +7151,13 @@ do { p = (u32 *)(orig_p + (reg)); \ GET_REG32_LOOP(BUFMGR_MODE, 0x58); GET_REG32_LOOP(RDMAC_MODE, 0x08); GET_REG32_LOOP(WDMAC_MODE, 0x08); - GET_REG32_LOOP(RX_CPU_BASE, 0x280); - GET_REG32_LOOP(TX_CPU_BASE, 0x280); + GET_REG32_1(RX_CPU_MODE); + GET_REG32_1(RX_CPU_STATE); + GET_REG32_1(RX_CPU_PGMCTR); + GET_REG32_1(RX_CPU_HWBKPT); + GET_REG32_1(TX_CPU_MODE); + GET_REG32_1(TX_CPU_STATE); + GET_REG32_1(TX_CPU_PGMCTR); GET_REG32_LOOP(GRCMBOX_INTERRUPT_0, 0x110); GET_REG32_LOOP(FTQ_RESET, 0x120); GET_REG32_LOOP(MSGINT_MODE, 0x0c); diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index 94dbcf3537e..890e1635996 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -1124,7 +1124,14 @@ /* 0x280 --> 0x400 unused */ #define RX_CPU_BASE 0x00005000 +#define RX_CPU_MODE 0x00005000 +#define RX_CPU_STATE 0x00005004 +#define RX_CPU_PGMCTR 0x0000501c +#define RX_CPU_HWBKPT 0x00005034 #define TX_CPU_BASE 0x00005400 +#define TX_CPU_MODE 0x00005400 +#define TX_CPU_STATE 0x00005404 +#define TX_CPU_PGMCTR 0x0000541c /* Mailboxes */ #define GRCMBOX_INTERRUPT_0 0x00005800 /* 64-bit */ |