From 0091821d1933a079a14c3447922e79a3174c5659 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Tue, 27 Oct 2009 23:46:38 +0000 Subject: [PATCH] igb: use packet buffer sizes from RXPBS register This patch changes the configuration for 82576 so that it uses the actual value of the 82576 rx packet buffer size instead of just assuming the value. Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/igb/e1000_82575.h | 2 ++ drivers/net/igb/e1000_regs.h | 2 ++ drivers/net/igb/igb_main.c | 3 ++- 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/igb/e1000_82575.h b/drivers/net/igb/e1000_82575.h index cbe475747d1ad..b3808ca49ef5a 100644 --- a/drivers/net/igb/e1000_82575.h +++ b/drivers/net/igb/e1000_82575.h @@ -228,6 +228,8 @@ struct e1000_adv_tx_context_desc { #define ALL_QUEUES 0xFFFF +/* RX packet buffer size defines */ +#define E1000_RXPBS_SIZE_MASK_82576 0x0000007F void igb_vmdq_set_loopback_pf(struct e1000_hw *, bool); void igb_vmdq_set_replication_pf(struct e1000_hw *, bool); diff --git a/drivers/net/igb/e1000_regs.h b/drivers/net/igb/e1000_regs.h index 24f2c24d03095..934e03b053ac2 100644 --- a/drivers/net/igb/e1000_regs.h +++ b/drivers/net/igb/e1000_regs.h @@ -102,7 +102,9 @@ #define E1000_ETQF(_n) (0x05CB0 + (4 * (_n))) /* EType Queue Fltr */ #define E1000_RQDPC(_n) (0x0C030 + ((_n) * 0x40)) + /* Split and Replication RX Control - RW */ +#define E1000_RXPBS 0x02404 /* Rx Packet Buffer Size - RW */ /* * Convenience macros * diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 7e628bad17d59..2ed2694df5ab9 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -1215,7 +1215,8 @@ void igb_reset(struct igb_adapter *adapter) */ switch (mac->type) { case e1000_82576: - pba = E1000_PBA_64K; + pba = rd32(E1000_RXPBS); + pba &= E1000_RXPBS_SIZE_MASK_82576; break; case e1000_82575: default: -- 2.39.5