From befefe2177d4bca07a64a2410333388c063a6f7d Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Thu, 28 Aug 2008 06:10:04 +0200 Subject: [PATCH] mv643xx_eth: delete unused and uninteresting interrupt source mask bits Delete a couple of unused and uninteresting interrupt source mask bits: - The receive resource underrun interrupt sources are uninteresting because if we are in out-of-memory mode, we are already dealing with the issue, and we don't need the hardware to remind us again that we are out of memory. - The LINK and PHY interrupt sources can be coalesced into one define, since we always use them together. - The transmit resource underrun interrupt source can be disabled since we never activate the head descriptor of a paged skb until the fragments are all activated, so transmit underrun during a packet should never happen. - The INT_EXT_TX_0 define is never used. Signed-off-by: Lennert Buytenhek --- drivers/net/mv643xx_eth.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index bd3ca470916..e592fac8706 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -105,14 +105,11 @@ static char mv643xx_eth_driver_version[] = "1.3"; #define INT_CAUSE(p) (0x0460 + ((p) << 10)) #define INT_TX_END_0 0x00080000 #define INT_TX_END 0x07f80000 -#define INT_RX 0x0007fbfc +#define INT_RX 0x000003fc #define INT_EXT 0x00000002 #define INT_CAUSE_EXT(p) (0x0464 + ((p) << 10)) -#define INT_EXT_LINK 0x00100000 -#define INT_EXT_PHY 0x00010000 -#define INT_EXT_TX_ERROR_0 0x00000100 -#define INT_EXT_TX_0 0x00000001 -#define INT_EXT_TX 0x0000ffff +#define INT_EXT_LINK_PHY 0x00110000 +#define INT_EXT_TX 0x000000ff #define INT_MASK(p) (0x0468 + ((p) << 10)) #define INT_MASK_EXT(p) (0x046c + ((p) << 10)) #define TX_FIFO_URGENT_THRESHOLD(p) (0x0474 + ((p) << 10)) @@ -1815,11 +1812,11 @@ static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) int_cause_ext = 0; if (int_cause & INT_EXT) { int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num)) - & (INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); + & (INT_EXT_LINK_PHY | INT_EXT_TX); wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext); } - if (int_cause_ext & (INT_EXT_PHY | INT_EXT_LINK)) + if (int_cause_ext & INT_EXT_LINK_PHY) handle_link_event(mp); /* @@ -2059,9 +2056,7 @@ static int mv643xx_eth_open(struct net_device *dev) set_rx_coal(mp, 0); set_tx_coal(mp, 0); - wrl(mp, INT_MASK_EXT(mp->port_num), - INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX); - + wrl(mp, INT_MASK_EXT(mp->port_num), INT_EXT_LINK_PHY | INT_EXT_TX); wrl(mp, INT_MASK(mp->port_num), INT_TX_END | INT_RX | INT_EXT); return 0; -- 2.41.0