diff options
author | Nithin Sujir <nsujir@broadcom.com> | 2013-05-23 11:11:24 +0000 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2013-05-24 22:23:29 -0700 |
commit | 328947ff2609989fefe6dfd1143cc0787a5ec862 (patch) | |
tree | 2f8fd2845c570efad56f6e908c8232bc49d4a6ff /drivers/net | |
parent | 32ba19efc08a4bd63590310f05da5ce4d8773508 (diff) | |
download | op-kernel-dev-328947ff2609989fefe6dfd1143cc0787a5ec862.zip op-kernel-dev-328947ff2609989fefe6dfd1143cc0787a5ec862.tar.gz |
tg3: Make tg3_rings_reset() more concise
Simplify the rings reset function and increase readability by moving the
control block disable code into separate functions.
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/ethernet/broadcom/tg3.c | 81 |
1 files changed, 48 insertions, 33 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index bb1d34c..693c5f2 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -9240,6 +9240,28 @@ static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec) } /* tp->lock is held. */ +static void tg3_tx_rcbs_disable(struct tg3 *tp) +{ + u32 txrcb, limit; + + /* Disable all transmit rings but the first. */ + if (!tg3_flag(tp, 5705_PLUS)) + limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16; + else if (tg3_flag(tp, 5717_PLUS)) + limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 4; + else if (tg3_flag(tp, 57765_CLASS) || + tg3_asic_rev(tp) == ASIC_REV_5762) + limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2; + else + limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE; + + for (txrcb = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE; + txrcb < limit; txrcb += TG3_BDINFO_SIZE) + tg3_write_mem(tp, txrcb + TG3_BDINFO_MAXLEN_FLAGS, + BDINFO_FLAGS_DISABLED); +} + +/* tp->lock is held. */ static void tg3_tx_rcbs_init(struct tg3 *tp) { int i = 0; @@ -9261,6 +9283,29 @@ static void tg3_tx_rcbs_init(struct tg3 *tp) } /* tp->lock is held. */ +static void tg3_rx_ret_rcbs_disable(struct tg3 *tp) +{ + u32 rxrcb, limit; + + /* Disable all receive return rings but the first. */ + if (tg3_flag(tp, 5717_PLUS)) + limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 17; + else if (!tg3_flag(tp, 5705_PLUS)) + limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 16; + else if (tg3_asic_rev(tp) == ASIC_REV_5755 || + tg3_asic_rev(tp) == ASIC_REV_5762 || + tg3_flag(tp, 57765_CLASS)) + limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 4; + else + limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE; + + for (rxrcb = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE; + rxrcb < limit; rxrcb += TG3_BDINFO_SIZE) + tg3_write_mem(tp, rxrcb + TG3_BDINFO_MAXLEN_FLAGS, + BDINFO_FLAGS_DISABLED); +} + +/* tp->lock is held. */ static void tg3_rx_ret_rcbs_init(struct tg3 *tp) { int i = 0; @@ -9285,42 +9330,12 @@ static void tg3_rx_ret_rcbs_init(struct tg3 *tp) static void tg3_rings_reset(struct tg3 *tp) { int i; - u32 stblk, txrcb, rxrcb, limit; + u32 stblk; struct tg3_napi *tnapi = &tp->napi[0]; - /* Disable all transmit rings but the first. */ - if (!tg3_flag(tp, 5705_PLUS)) - limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16; - else if (tg3_flag(tp, 5717_PLUS)) - limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 4; - else if (tg3_flag(tp, 57765_CLASS) || - tg3_asic_rev(tp) == ASIC_REV_5762) - limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2; - else - limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE; - - for (txrcb = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE; - txrcb < limit; txrcb += TG3_BDINFO_SIZE) - tg3_write_mem(tp, txrcb + TG3_BDINFO_MAXLEN_FLAGS, - BDINFO_FLAGS_DISABLED); - - - /* Disable all receive return rings but the first. */ - if (tg3_flag(tp, 5717_PLUS)) - limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 17; - else if (!tg3_flag(tp, 5705_PLUS)) - limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 16; - else if (tg3_asic_rev(tp) == ASIC_REV_5755 || - tg3_asic_rev(tp) == ASIC_REV_5762 || - tg3_flag(tp, 57765_CLASS)) - limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 4; - else - limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE; + tg3_tx_rcbs_disable(tp); - for (rxrcb = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE; - rxrcb < limit; rxrcb += TG3_BDINFO_SIZE) - tg3_write_mem(tp, rxrcb + TG3_BDINFO_MAXLEN_FLAGS, - BDINFO_FLAGS_DISABLED); + tg3_rx_ret_rcbs_disable(tp); /* Disable interrupts */ tw32_mailbox_f(tp->napi[0].int_mbox, 1); |