[PATCH net-next 02/11] tg3: Fix 5719 A0 tx completion bug
DORMANTno replies
REVIEWED: 1 (1M)
From: Matt Carlson <hidden>
Date: 2011-01-26 01:59:20
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
1 review trailer.
The 5719 A0 has a bug that manifests itself as if the chipset were reordering memory writes. The best known way to solve this problem is to turn off LSO and jumbo frames. Signed-off-by: Matt Carlson <redacted> Reviewed-by: Michael Chan <mchan@broadcom.com> --- drivers/net/tg3.c | 12 ++++++++---- drivers/net/tg3.h | 1 + 2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 07d4e61..8756f31 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c@@ -8108,8 +8108,9 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) /* Program the jumbo buffer descriptor ring control * blocks on those devices that have them. */ - if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) && - !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) { + if (tp->pci_chip_rev_id == CHIPREV_ID_5719_A0 || + ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) && + !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))) { /* Setup replenish threshold. */ tw32(RCVBDI_JUMBO_THRESH, tp->rx_jumbo_pending / 8);
@@ -13329,7 +13330,9 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) } /* Determine TSO capabilities */ - if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) + if (tp->pci_chip_rev_id == CHIPREV_ID_5719_A0) + ; /* Do nothing. HW bug. */ + else if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) tp->tg3_flags2 |= TG3_FLG2_HW_TSO_3; else if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) || GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
@@ -13380,7 +13383,8 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) tp->tg3_flags3 |= TG3_FLG3_40BIT_DMA_LIMIT_BUG; } - if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) + if ((tp->tg3_flags3 & TG3_FLG3_5717_PLUS) && + tp->pci_chip_rev_id != CHIPREV_ID_5719_A0) tp->tg3_flags3 |= TG3_FLG3_USE_JUMBO_BDFLAG; if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 0a0987a..52ae644 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h@@ -141,6 +141,7 @@ #define CHIPREV_ID_57780_A1 0x57780001 #define CHIPREV_ID_5717_A0 0x05717000 #define CHIPREV_ID_57765_A0 0x57785000 +#define CHIPREV_ID_5719_A0 0x05719000 #define GET_ASIC_REV(CHIP_REV_ID) ((CHIP_REV_ID) >> 12) #define ASIC_REV_5700 0x07 #define ASIC_REV_5701 0x00
--
1.7.2.2