From fdb72b38c94c0ead1f78ecc8db64b832feda22c3 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Fri, 28 Aug 2009 13:57:12 +0000 Subject: [PATCH] tg3: Break out mini producer ring handling This patch separates the code that sets up the mini producer ring from the code that sets up the jumbo producer rings. The 5717 asic rev devices do not have a mini ring, but do have a jumbo frame implementation similar to the 5704 and previous devices. Signed-off-by: Matt Carlson Signed-off-by: David S. Miller --- drivers/net/tg3.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 4c4d164a4b4..606703cf961 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -6967,19 +6967,16 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR, NIC_SRAM_RX_BUFFER_DESC); - /* Don't even try to program the JUMBO/MINI buffer descriptor - * configs on 5705. - */ - if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) { - tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS, - RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT); - } else { - tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS, - RX_STD_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT); - + /* Disable the mini ring */ + if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) tw32(RCVDBDI_MINI_BD + TG3_BDINFO_MAXLEN_FLAGS, BDINFO_FLAGS_DISABLED); + /* Program the jumbo buffer descriptor ring control + * blocks on those devices that have them. + */ + if ((tp->tg3_flags2 & TG3_FLG2_JUMBO_CAPABLE) && + !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) { /* Setup replenish threshold. */ tw32(RCVBDI_JUMBO_THRESH, tp->rx_jumbo_pending / 8); @@ -6997,7 +6994,11 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) BDINFO_FLAGS_DISABLED); } - } + val = RX_STD_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT; + } else + val = RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT; + + tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS, val); /* There is only one send ring on 5705/5750, no need to explicitly * disable the others. -- 2.20.1