From 5809a1ae77721931ca7bd7aeacb37fdabe6f07c0 Mon Sep 17 00:00:00 2001 From: Greg Rose Date: Wed, 24 Mar 2010 09:36:08 +0000 Subject: ixgbe: In SR-IOV mode insert delay before bring the adapter up VFs running in guest VMs do not respond in as timely a manner to PF indication it is going down as they do when running in the host domain. If the adapter is in SR-IOV mode insert a two second delay to guarantee that all VFs have had time to respond to the PF reset. In any case resetting the PF while VFs are active should be discouraged but if it must be done then there will be a two second delay to help synchronize resets among the PF and all the VFs. Signed-off-by: Greg Rose Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_main.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/net/ixgbe') diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index d75c46ff31f6..d2cda9e5963f 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -3056,6 +3056,14 @@ void ixgbe_reinit_locked(struct ixgbe_adapter *adapter) while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) msleep(1); ixgbe_down(adapter); + /* + * If SR-IOV enabled then wait a bit before bringing the adapter + * back up to give the VFs time to respond to the reset. The + * two second wait is based upon the watchdog timer cycle in + * the VF driver. + */ + if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) + msleep(2000); ixgbe_up(adapter); clear_bit(__IXGBE_RESETTING, &adapter->state); } -- cgit v1.2.3 From 581d1aa777580c1c22169538ffb46676b13c408e Mon Sep 17 00:00:00 2001 From: Greg Rose Date: Wed, 24 Mar 2010 09:36:27 +0000 Subject: ixgbe: Change where clear_to_send_flag is reset to zero. The clear_to_send flag is being cleared before the call to ping all the VFs. It should be called after pinging all the VFs. Signed-off-by: Greg Rose Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_main.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/net/ixgbe') diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index d2cda9e5963f..1066d53e102c 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -3244,13 +3244,15 @@ void ixgbe_down(struct ixgbe_adapter *adapter) /* disable receive for all VFs and wait one second */ if (adapter->num_vfs) { - for (i = 0 ; i < adapter->num_vfs; i++) - adapter->vfinfo[i].clear_to_send = 0; - /* ping all the active vfs to let them know we are going down */ ixgbe_ping_all_vfs(adapter); + /* Disable all VFTE/VFRE TX/RX */ ixgbe_disable_tx_rx(adapter); + + /* Mark all the VFs as inactive */ + for (i = 0 ; i < adapter->num_vfs; i++) + adapter->vfinfo[i].clear_to_send = 0; } /* disable receives */ -- cgit v1.2.3 From e0fce6950b822aba7840d82c2d2018f1e1b8276b Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Wed, 24 Mar 2010 10:01:45 +0000 Subject: ixgbe: cleanup maximum number of tx queues In the last patch I missed an unecessary min_t comparison. This patch removes it, the path allocates at most 72 tx queues for 82599 and 24 for 82598 there is no need for this check. Additionally this sets MAX_[TX|RX]_QUEUES to 72. Which is used as the size for the tx/rx_ring arrays. There is no reason to have more tx_rings/rx_rings then num_tx_queues. Signed-off-by: John Fastabend Signed-off-by: Jeff Kirsher Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe.h | 7 +++++-- drivers/net/ixgbe/ixgbe_main.c | 1 - 2 files changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/net/ixgbe') diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h index 19e94ee155a2..79c35ae3718c 100644 --- a/drivers/net/ixgbe/ixgbe.h +++ b/drivers/net/ixgbe/ixgbe.h @@ -204,14 +204,17 @@ enum ixgbe_ring_f_enum { #define IXGBE_MAX_FDIR_INDICES 64 #ifdef IXGBE_FCOE #define IXGBE_MAX_FCOE_INDICES 8 +#define MAX_RX_QUEUES (IXGBE_MAX_FDIR_INDICES + IXGBE_MAX_FCOE_INDICES) +#define MAX_TX_QUEUES (IXGBE_MAX_FDIR_INDICES + IXGBE_MAX_FCOE_INDICES) +#else +#define MAX_RX_QUEUES IXGBE_MAX_FDIR_INDICES +#define MAX_TX_QUEUES IXGBE_MAX_FDIR_INDICES #endif /* IXGBE_FCOE */ struct ixgbe_ring_feature { int indices; int mask; } ____cacheline_internodealigned_in_smp; -#define MAX_RX_QUEUES 128 -#define MAX_TX_QUEUES 128 #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \ ? 8 : 1) diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 1066d53e102c..208fb4a97217 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -6061,7 +6061,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, indices += min_t(unsigned int, num_possible_cpus(), IXGBE_MAX_FCOE_INDICES); #endif - indices = min_t(unsigned int, indices, MAX_TX_QUEUES); netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices); if (!netdev) { err = -ENOMEM; -- cgit v1.2.3 From a7551b75fe47fb6fb70f679935845e741c5e0855 Mon Sep 17 00:00:00 2001 From: Robert Love Date: Wed, 24 Mar 2010 10:02:04 +0000 Subject: ixgbe: Don't allow user buffer count to exceed 256 If the user buffer count was 256 the shift would place a 1 in the offset region leading to errors. It also overwrites the uers buffer list. This patch makes sure that at most 256 user buffers are allowed for DDP and the buffer count is masked properly such that it doesn't overwrite the offset when shifting the bits. Signed-off-by: Robert Love Signed-off-by: Yi Zou Signed-off-by: Frank Zhang Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_fcoe.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'drivers/net/ixgbe') diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c index 700cfc0aa1b9..e1978da49e5b 100644 --- a/drivers/net/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ixgbe/ixgbe_fcoe.c @@ -202,6 +202,15 @@ int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid, addr = sg_dma_address(sg); len = sg_dma_len(sg); while (len) { + /* max number of buffers allowed in one DDP context */ + if (j >= IXGBE_BUFFCNT_MAX) { + netif_err(adapter, drv, adapter->netdev, + "xid=%x:%d,%d,%d:addr=%llx " + "not enough descriptors\n", + xid, i, j, dmacount, (u64)addr); + goto out_noddp_free; + } + /* get the offset of length of current buffer */ thisoff = addr & ((dma_addr_t)bufflen - 1); thislen = min((bufflen - thisoff), len); @@ -227,20 +236,13 @@ int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid, len -= thislen; addr += thislen; j++; - /* max number of buffers allowed in one DDP context */ - if (j > IXGBE_BUFFCNT_MAX) { - DPRINTK(DRV, ERR, "xid=%x:%d,%d,%d:addr=%llx " - "not enough descriptors\n", - xid, i, j, dmacount, (u64)addr); - goto out_noddp_free; - } } } /* only the last buffer may have non-full bufflen */ lastsize = thisoff + thislen; fcbuff = (IXGBE_FCBUFF_4KB << IXGBE_FCBUFF_BUFFSIZE_SHIFT); - fcbuff |= (j << IXGBE_FCBUFF_BUFFCNT_SHIFT); + fcbuff |= ((j & 0xff) << IXGBE_FCBUFF_BUFFCNT_SHIFT); fcbuff |= (firstoff << IXGBE_FCBUFF_OFFSET_SHIFT); fcbuff |= (IXGBE_FCBUFF_VALID); -- cgit v1.2.3 From ca77cd59d28456b4061afa5254972ec47fa8baf5 Mon Sep 17 00:00:00 2001 From: Robert Love Date: Wed, 24 Mar 2010 12:45:00 +0000 Subject: ixgbe: Priority tag FIP frames Currently FIP (FCoE Initialization Protocol) frames are going untagged. This causes various problems with FCFs (switches) that have negotiated a priority over dcbx. This patch tags FIP frames with the same priority as the FCoE frames. Signed-off-by: Robert Love Signed-off-by: Chris Leech Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_main.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) (limited to 'drivers/net/ixgbe') diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 208fb4a97217..0c553f6cb534 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -5648,7 +5648,8 @@ static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb) #ifdef IXGBE_FCOE if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && - (skb->protocol == htons(ETH_P_FCOE))) { + ((skb->protocol == htons(ETH_P_FCOE)) || + (skb->protocol == htons(ETH_P_FIP)))) { txq &= (adapter->ring_feature[RING_F_FCOE].indices - 1); txq += adapter->ring_feature[RING_F_FCOE].mask; return txq; @@ -5695,18 +5696,25 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, tx_ring = adapter->tx_ring[skb->queue_mapping]; - if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && - (skb->protocol == htons(ETH_P_FCOE))) { - tx_flags |= IXGBE_TX_FLAGS_FCOE; #ifdef IXGBE_FCOE + if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { #ifdef CONFIG_IXGBE_DCB - tx_flags &= ~(IXGBE_TX_FLAGS_VLAN_PRIO_MASK - << IXGBE_TX_FLAGS_VLAN_SHIFT); - tx_flags |= ((adapter->fcoe.up << 13) - << IXGBE_TX_FLAGS_VLAN_SHIFT); -#endif + /* for FCoE with DCB, we force the priority to what + * was specified by the switch */ + if ((skb->protocol == htons(ETH_P_FCOE)) || + (skb->protocol == htons(ETH_P_FIP))) { + tx_flags &= ~(IXGBE_TX_FLAGS_VLAN_PRIO_MASK + << IXGBE_TX_FLAGS_VLAN_SHIFT); + tx_flags |= ((adapter->fcoe.up << 13) + << IXGBE_TX_FLAGS_VLAN_SHIFT); + } #endif + /* flag for FCoE offloads */ + if (skb->protocol == htons(ETH_P_FCOE)) + tx_flags |= IXGBE_TX_FLAGS_FCOE; } +#endif + /* four things can cause us to need a context descriptor */ if (skb_is_gso(skb) || (skb->ip_summed == CHECKSUM_PARTIAL) || -- cgit v1.2.3 From af06393bbde6e8d474622a0517cffc662676e3fe Mon Sep 17 00:00:00 2001 From: Chris Leech Date: Wed, 24 Mar 2010 12:45:21 +0000 Subject: ixgbe: filter FIP frames into the FCoE offload queues During FCF solicitation, the switch is supposed to pad the solicited advertisement out to the endpoints specified maximum FCoE frame size. That means that we need to receive FIP frames that are larger than the standard MTU. To make sure the receive queue is configured correctly, we should be filtering FIP traffic into the FCoE queues. Signed-off-by: Chris Leech Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_fcoe.c | 15 +++++++++++++++ drivers/net/ixgbe/ixgbe_type.h | 1 + 2 files changed, 16 insertions(+) (limited to 'drivers/net/ixgbe') diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c index e1978da49e5b..9276d5965b0d 100644 --- a/drivers/net/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ixgbe/ixgbe_fcoe.c @@ -522,6 +522,9 @@ 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++) { @@ -532,6 +535,12 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter) } IXGBE_WRITE_REG(hw, IXGBE_FCRECTL, IXGBE_FCRECTL_ENA); IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FCOE), 0); + fcoe_i = f->mask; + fcoe_i &= IXGBE_FCRETA_ENTRY_MASK; + fcoe_q = adapter->rx_ring[fcoe_i]->reg_idx; + IXGBE_WRITE_REG(hw, IXGBE_ETQS(IXGBE_ETQF_FILTER_FIP), + IXGBE_ETQS_QUEUE_EN | + (fcoe_q << IXGBE_ETQS_RX_QUEUE_SHIFT)); } else { /* Use single rx queue for FCoE */ fcoe_i = f->mask; @@ -541,6 +550,12 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter) IXGBE_ETQS_QUEUE_EN | (fcoe_q << IXGBE_ETQS_RX_QUEUE_SHIFT)); } + /* send FIP frames to the first FCoE queue */ + fcoe_i = f->mask; + fcoe_q = adapter->rx_ring[fcoe_i]->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_FCOELLI | diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h index 0ed5ab37cc53..4ec6dc1a5b75 100644 --- a/drivers/net/ixgbe/ixgbe_type.h +++ b/drivers/net/ixgbe/ixgbe_type.h @@ -1298,6 +1298,7 @@ #define IXGBE_ETQF_FILTER_BCN 1 #define IXGBE_ETQF_FILTER_FCOE 2 #define IXGBE_ETQF_FILTER_1588 3 +#define IXGBE_ETQF_FILTER_FIP 4 /* VLAN Control Bit Masks */ #define IXGBE_VLNCTRL_VET 0x0000FFFF /* bits 0-15 */ #define IXGBE_VLNCTRL_CFI 0x10000000 /* bit 28 */ -- cgit v1.2.3 From e7d481a6f3c13041446b7bb8f98ab861460076a3 Mon Sep 17 00:00:00 2001 From: Greg Rose Date: Thu, 25 Mar 2010 17:06:48 +0000 Subject: ixgbe: Do not run all Diagnostic offline tests when VFs are active When running the offline diagnostic tests check to see if any VFs are online. If so then only run the link test. This is necessary because the VFs running in guest VMs aren't aware of when the PF is taken offline for a diagnostic test. Also put a message to the system log telling the system administrator to take the VFs offline manually if (s)he wants to run a full diagnostic. Return 1 on each of the tests not run to alert the user of the condition. Signed-off-by: Greg Rose Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_ethtool.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers/net/ixgbe') diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c index 7949a446e4c7..1959ef76c962 100644 --- a/drivers/net/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ixgbe/ixgbe_ethtool.c @@ -1853,6 +1853,26 @@ static void ixgbe_diag_test(struct net_device *netdev, if (ixgbe_link_test(adapter, &data[4])) eth_test->flags |= ETH_TEST_FL_FAILED; + if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { + int i; + for (i = 0; i < adapter->num_vfs; i++) { + if (adapter->vfinfo[i].clear_to_send) { + netdev_warn(netdev, "%s", + "offline diagnostic is not " + "supported when VFs are " + "present\n"); + data[0] = 1; + data[1] = 1; + data[2] = 1; + data[3] = 1; + eth_test->flags |= ETH_TEST_FL_FAILED; + clear_bit(__IXGBE_TESTING, + &adapter->state); + goto skip_ol_tests; + } + } + } + if (if_running) /* indicate we're in test mode */ dev_close(netdev); @@ -1908,6 +1928,7 @@ skip_loopback: clear_bit(__IXGBE_TESTING, &adapter->state); } +skip_ol_tests: msleep_interruptible(4 * 1000); } -- cgit v1.2.3