[net-next 4/9] ixgbe: Cleanup configuration of FCoE registers
flat view
STALE5209d
REVIEWED: 2 (0M)
From: Jeff Kirsher <hidden>
Date: 2012-07-20 01:24:14
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 2 in this series; 2 review trailers.
Revisions (2)
- v1 current
- v1
From: Alexander Duyck <redacted> This change makes it so we always use the FCoE redirection table. We just set all 8 entries to the same value in the case of only having one queue for FCoE. Signed-off-by: Alexander Duyck <redacted> Tested-by: Phil Schmitt <redacted> Tested-by: Ross Brattain <redacted> Signed-off-by: Jeff Kirsher <redacted> --- drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c | 58 +++++++++++++------------ drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | 1 + 2 files changed, 32 insertions(+), 27 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
index 9b0909f..a994570 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c@@ -618,6 +618,7 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter) struct ixgbe_fcoe *fcoe = &adapter->fcoe; struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; unsigned int cpu; + u32 etqf; if (!fcoe->pool) { spin_lock_init(&fcoe->lock);
@@ -665,40 +666,43 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter) } } - /* Enable L2 eth type filter for FCoE */ - IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FCOE), - (ETH_P_FCOE | IXGBE_ETQF_FCOE | IXGBE_ETQF_FILTER_EN)); - /* Enable L2 eth type filter for FIP */ - IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FIP), - (ETH_P_FIP | IXGBE_ETQF_FILTER_EN)); - if (adapter->ring_feature[RING_F_FCOE].indices) { - /* Use multiple rx queues for FCoE by redirection table */ - for (i = 0; i < IXGBE_FCRETA_SIZE; i++) { - fcoe_i = f->offset + i % f->indices; - fcoe_i &= IXGBE_FCRETA_ENTRY_MASK; - fcoe_q = adapter->rx_ring[fcoe_i]->reg_idx; - IXGBE_WRITE_REG(hw, IXGBE_FCRETA(i), fcoe_q); - } - IXGBE_WRITE_REG(hw, IXGBE_FCRECTL, IXGBE_FCRECTL_ENA); - IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FCOE), 0); - } else { - /* Use single rx queue for FCoE */ - fcoe_i = f->offset; + /* Enable L2 EtherType filter for FCoE, necessary for FCoE Rx CRC */ + etqf = ETH_P_FCOE | IXGBE_ETQF_FCOE | IXGBE_ETQF_FILTER_EN; + if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { + etqf |= IXGBE_ETQF_POOL_ENABLE; + etqf |= VMDQ_P(0) << IXGBE_ETQF_POOL_SHIFT; + } + IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FCOE), etqf); + IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FCOE), 0); + + /* Use one or more Rx queues for FCoE by redirection table */ + for (i = 0; i < IXGBE_FCRETA_SIZE; i++) { + fcoe_i = f->offset + (i % f->indices); + fcoe_i &= IXGBE_FCRETA_ENTRY_MASK; fcoe_q = adapter->rx_ring[fcoe_i]->reg_idx; - IXGBE_WRITE_REG(hw, IXGBE_FCRECTL, 0); - IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FCOE), - IXGBE_ETQS_QUEUE_EN | - (fcoe_q << IXGBE_ETQS_RX_QUEUE_SHIFT)); + IXGBE_WRITE_REG(hw, IXGBE_FCRETA(i), fcoe_q); } - /* send FIP frames to the first FCoE queue */ - fcoe_i = f->offset; - fcoe_q = adapter->rx_ring[fcoe_i]->reg_idx; + IXGBE_WRITE_REG(hw, IXGBE_FCRECTL, IXGBE_FCRECTL_ENA); + + /* Enable L2 EtherType filter for FIP */ + etqf = ETH_P_FIP | IXGBE_ETQF_FILTER_EN; + if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { + etqf |= IXGBE_ETQF_POOL_ENABLE; + etqf |= VMDQ_P(0) << IXGBE_ETQF_POOL_SHIFT; + } + IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FIP), etqf); + + /* Send FIP frames to the first FCoE queue */ + fcoe_q = adapter->rx_ring[f->offset]->reg_idx; IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FIP), IXGBE_ETQS_QUEUE_EN | (fcoe_q << IXGBE_ETQS_RX_QUEUE_SHIFT)); - IXGBE_WRITE_REG(hw, IXGBE_FCRXCTRL, IXGBE_FCRXCTRL_FCCRCBO | + /* Configure FCoE Rx control */ + IXGBE_WRITE_REG(hw, IXGBE_FCRXCTRL, + IXGBE_FCRXCTRL_FCCRCBO | (FC_FCOE_VER << IXGBE_FCRXCTRL_FCOEVER_SHIFT)); + return; out_pcpu_noddp_extra_buff_alloc_fail: free_percpu(fcoe->pcpu_noddp);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 7416d22..482a33b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h@@ -1452,6 +1452,7 @@ enum { #define IXGBE_ETQF_1588 0x40000000 /* bit 30 */ #define IXGBE_ETQF_FILTER_EN 0x80000000 /* bit 31 */ #define IXGBE_ETQF_POOL_ENABLE (1 << 26) /* bit 26 */ +#define IXGBE_ETQF_POOL_SHIFT 20 #define IXGBE_ETQS_RX_QUEUE 0x007F0000 /* bits 22:16 */ #define IXGBE_ETQS_RX_QUEUE_SHIFT 16
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1.7.10.4