From 7e4dcc13965c57869684d57a1dc6dd7be589488c Mon Sep 17 00:00:00 2001 From: Mitch Williams Date: Fri, 4 Jun 2021 09:53:28 -0700 Subject: iavf: restore MSI state on reset If the PF experiences an FLR, the VF's MSI and MSI-X configuration will be conveniently and silently removed in the process. When this happens, reset recovery will appear to complete normally but no traffic will pass. The netdev watchdog will helpfully notify everyone of this issue. To prevent such public embarrassment, restore MSI configuration at every reset. For normal resets, this will do no harm, but for VF resets resulting from a PF FLR, this will keep the VF working. Fixes: 5eae00c57f5e ("i40evf: main driver core") Signed-off-by: Mitch Williams Tested-by: George Kuruvinakunnel Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/iavf/iavf_main.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index 14934a7a13ef..cfdbf8c08d18 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -2248,6 +2248,7 @@ static void iavf_reset_task(struct work_struct *work) } pci_set_master(adapter->pdev); + pci_restore_msi_state(adapter->pdev); if (i == IAVF_RESET_WAIT_COMPLETE_COUNT) { dev_err(&adapter->pdev->dev, "Reset never finished (%x)\n", -- cgit From dac8e00fb640e9569cdeefd3ce8a75639e5d0711 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 2 Dec 2021 18:27:18 -0800 Subject: bonding: make tx_rebalance_counter an atomic KCSAN reported a data-race [1] around tx_rebalance_counter which can be accessed from different contexts, without the protection of a lock/mutex. [1] BUG: KCSAN: data-race in bond_alb_init_slave / bond_alb_monitor write to 0xffff888157e8ca24 of 4 bytes by task 7075 on cpu 0: bond_alb_init_slave+0x713/0x860 drivers/net/bonding/bond_alb.c:1613 bond_enslave+0xd94/0x3010 drivers/net/bonding/bond_main.c:1949 do_set_master net/core/rtnetlink.c:2521 [inline] __rtnl_newlink net/core/rtnetlink.c:3475 [inline] rtnl_newlink+0x1298/0x13b0 net/core/rtnetlink.c:3506 rtnetlink_rcv_msg+0x745/0x7e0 net/core/rtnetlink.c:5571 netlink_rcv_skb+0x14e/0x250 net/netlink/af_netlink.c:2491 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:5589 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x5fc/0x6c0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x6e1/0x7d0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x39a/0x510 net/socket.c:2409 ___sys_sendmsg net/socket.c:2463 [inline] __sys_sendmsg+0x195/0x230 net/socket.c:2492 __do_sys_sendmsg net/socket.c:2501 [inline] __se_sys_sendmsg net/socket.c:2499 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2499 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888157e8ca24 of 4 bytes by task 1082 on cpu 1: bond_alb_monitor+0x8f/0xc00 drivers/net/bonding/bond_alb.c:1511 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298 worker_thread+0x616/0xa70 kernel/workqueue.c:2445 kthread+0x2c7/0x2e0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 value changed: 0x00000001 -> 0x00000064 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1082 Comm: kworker/u4:3 Not tainted 5.16.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bond1 bond_alb_monitor Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet Reported-by: syzbot Signed-off-by: David S. Miller --- drivers/net/bonding/bond_alb.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 2ec8e015c7b3..533e476988f2 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -1501,14 +1501,14 @@ void bond_alb_monitor(struct work_struct *work) struct slave *slave; if (!bond_has_slaves(bond)) { - bond_info->tx_rebalance_counter = 0; + atomic_set(&bond_info->tx_rebalance_counter, 0); bond_info->lp_counter = 0; goto re_arm; } rcu_read_lock(); - bond_info->tx_rebalance_counter++; + atomic_inc(&bond_info->tx_rebalance_counter); bond_info->lp_counter++; /* send learning packets */ @@ -1530,7 +1530,7 @@ void bond_alb_monitor(struct work_struct *work) } /* rebalance tx traffic */ - if (bond_info->tx_rebalance_counter >= BOND_TLB_REBALANCE_TICKS) { + if (atomic_read(&bond_info->tx_rebalance_counter) >= BOND_TLB_REBALANCE_TICKS) { bond_for_each_slave_rcu(bond, slave, iter) { tlb_clear_slave(bond, slave, 1); if (slave == rcu_access_pointer(bond->curr_active_slave)) { @@ -1540,7 +1540,7 @@ void bond_alb_monitor(struct work_struct *work) bond_info->unbalanced_load = 0; } } - bond_info->tx_rebalance_counter = 0; + atomic_set(&bond_info->tx_rebalance_counter, 0); } if (bond_info->rlb_enabled) { @@ -1610,7 +1610,8 @@ int bond_alb_init_slave(struct bonding *bond, struct slave *slave) tlb_init_slave(slave); /* order a rebalance ASAP */ - bond->alb_info.tx_rebalance_counter = BOND_TLB_REBALANCE_TICKS; + atomic_set(&bond->alb_info.tx_rebalance_counter, + BOND_TLB_REBALANCE_TICKS); if (bond->alb_info.rlb_enabled) bond->alb_info.rlb_rebalance = 1; @@ -1647,7 +1648,8 @@ void bond_alb_handle_link_change(struct bonding *bond, struct slave *slave, char rlb_clear_slave(bond, slave); } else if (link == BOND_LINK_UP) { /* order a rebalance ASAP */ - bond_info->tx_rebalance_counter = BOND_TLB_REBALANCE_TICKS; + atomic_set(&bond_info->tx_rebalance_counter, + BOND_TLB_REBALANCE_TICKS); if (bond->alb_info.rlb_enabled) { bond->alb_info.rlb_rebalance = 1; /* If the updelay module parameter is smaller than the -- cgit From 128f6ec95a282b2d8bc1041e59bf65810703fa44 Mon Sep 17 00:00:00 2001 From: Jiasheng Jiang Date: Fri, 3 Dec 2021 11:31:06 +0800 Subject: net: bcm4908: Handle dma_set_coherent_mask error codes The return value of dma_set_coherent_mask() is not always 0. To catch the exception in case that dma is not support the mask. Fixes: 9d61d138ab30 ("net: broadcom: rename BCM4908 driver & update DT binding") Signed-off-by: Jiasheng Jiang Acked-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bcm4908_enet.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/broadcom/bcm4908_enet.c b/drivers/net/ethernet/broadcom/bcm4908_enet.c index 7cc5213c575a..b07cb9bc5f2d 100644 --- a/drivers/net/ethernet/broadcom/bcm4908_enet.c +++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c @@ -708,7 +708,9 @@ static int bcm4908_enet_probe(struct platform_device *pdev) enet->irq_tx = platform_get_irq_byname(pdev, "tx"); - dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + err = dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + if (err) + return err; err = bcm4908_enet_dma_alloc(enet); if (err) -- cgit From badd7857f5c933a3dc34942a2c11d67fdbdc24de Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 3 Dec 2021 13:11:28 +0300 Subject: net: altera: set a couple error code in probe() There are two error paths which accidentally return success instead of a negative error code. Fixes: bbd2190ce96d ("Altera TSE: Add main and header file for Altera Ethernet Driver") Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller --- drivers/net/ethernet/altera/altera_tse_main.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c index d75d95a97dd9..993b2fb42961 100644 --- a/drivers/net/ethernet/altera/altera_tse_main.c +++ b/drivers/net/ethernet/altera/altera_tse_main.c @@ -1430,16 +1430,19 @@ static int altera_tse_probe(struct platform_device *pdev) priv->rxdescmem_busaddr = dma_res->start; } else { + ret = -ENODEV; goto err_free_netdev; } - if (!dma_set_mask(priv->device, DMA_BIT_MASK(priv->dmaops->dmamask))) + if (!dma_set_mask(priv->device, DMA_BIT_MASK(priv->dmaops->dmamask))) { dma_set_coherent_mask(priv->device, DMA_BIT_MASK(priv->dmaops->dmamask)); - else if (!dma_set_mask(priv->device, DMA_BIT_MASK(32))) + } else if (!dma_set_mask(priv->device, DMA_BIT_MASK(32))) { dma_set_coherent_mask(priv->device, DMA_BIT_MASK(32)); - else + } else { + ret = -EIO; goto err_free_netdev; + } /* MAC address space */ ret = request_and_map(pdev, "control_port", &control_port, -- cgit From 8581fd402a0cf80b5298e3b225e7a7bd8f110e69 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Thu, 2 Dec 2021 12:34:00 -0800 Subject: treewide: Add missing includes masked by cgroup -> bpf dependency MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit cgroup.h (therefore swap.h, therefore half of the universe) includes bpf.h which in turn includes module.h and slab.h. Since we're about to get rid of that dependency we need to clean things up. v2: drop the cpu.h include from cacheinfo.h, it's not necessary and it makes riscv sensitive to ordering of include files. Signed-off-by: Jakub Kicinski Signed-off-by: Alexei Starovoitov Reviewed-by: Christoph Hellwig Acked-by: Krzysztof Wilczyński Acked-by: Peter Chen Acked-by: SeongJae Park Acked-by: Jani Nikula Acked-by: Greg Kroah-Hartman Link: https://lore.kernel.org/all/20211120035253.72074-1-kuba@kernel.org/ # v1 Link: https://lore.kernel.org/all/20211120165528.197359-1-kuba@kernel.org/ # cacheinfo discussion Link: https://lore.kernel.org/bpf/20211202203400.1208663-1-kuba@kernel.org --- drivers/net/ethernet/huawei/hinic/hinic_sriov.c | 1 + drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c | 2 ++ 2 files changed, 3 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/huawei/hinic/hinic_sriov.c b/drivers/net/ethernet/huawei/hinic/hinic_sriov.c index a78c398bf5b2..01e7d3c0b68e 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_sriov.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_sriov.c @@ -8,6 +8,7 @@ #include #include #include +#include #include "hinic_hw_dev.h" #include "hinic_dev.h" diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c index 0ef68fdd1f26..61c20907315f 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c @@ -5,6 +5,8 @@ * */ +#include + #include "otx2_common.h" #include "otx2_ptp.h" -- cgit From 8e227b198a55859bf790dc7f4b1e30c0859c6756 Mon Sep 17 00:00:00 2001 From: Manish Chopra Date: Fri, 3 Dec 2021 09:44:13 -0800 Subject: qede: validate non LSO skb length Although it is unlikely that stack could transmit a non LSO skb with length > MTU, however in some cases or environment such occurrences actually resulted into firmware asserts due to packet length being greater than the max supported by the device (~9700B). This patch adds the safeguard for such odd cases to avoid firmware asserts. v2: Added "Fixes" tag with one of the initial driver commit which enabled the TX traffic actually (as this was probably day1 issue which was discovered recently by some customer environment) Fixes: a2ec6172d29c ("qede: Add support for link") Signed-off-by: Manish Chopra Signed-off-by: Alok Prasad Signed-off-by: Prabhakar Kushwaha Signed-off-by: Ariel Elior Link: https://lore.kernel.org/r/20211203174413.13090-1-manishc@marvell.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/qlogic/qede/qede_fp.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c index 065e9004598e..999abcfe3310 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_fp.c +++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c @@ -1643,6 +1643,13 @@ netdev_tx_t qede_start_xmit(struct sk_buff *skb, struct net_device *ndev) data_split = true; } } else { + if (unlikely(skb->len > ETH_TX_MAX_NON_LSO_PKT_LEN)) { + DP_ERR(edev, "Unexpected non LSO skb length = 0x%x\n", skb->len); + qede_free_failed_tx_pkt(txq, first_bd, 0, false); + qede_update_tx_producer(txq); + return NETDEV_TX_OK; + } + val |= ((skb->len & ETH_TX_DATA_1ST_BD_PKT_LEN_MASK) << ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT); } -- cgit From 2be6d4d16a0849455a5c22490e3c5983495fed00 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 2 Dec 2021 14:34:37 +0000 Subject: net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently, due to the sequential use of min_t() and clamp_t() macros, in cdc_ncm_check_tx_max(), if dwNtbOutMaxSize is not set, the logic sets tx_max to 0. This is then used to allocate the data area of the SKB requested later in cdc_ncm_fill_tx_frame(). This does not cause an issue presently because when memory is allocated during initialisation phase of SKB creation, more memory (512b) is allocated than is required for the SKB headers alone (320b), leaving some space (512b - 320b = 192b) for CDC data (172b). However, if more elements (for example 3 x u64 = [24b]) were added to one of the SKB header structs, say 'struct skb_shared_info', increasing its original size (320b [320b aligned]) to something larger (344b [384b aligned]), then suddenly the CDC data (172b) no longer fits in the spare SKB data area (512b - 384b = 128b). Consequently the SKB bounds checking semantics fails and panics: skbuff: skb_over_panic: text:ffffffff830a5b5f len:184 put:172 \ head:ffff888119227c00 data:ffff888119227c00 tail:0xb8 end:0x80 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:110! RIP: 0010:skb_panic+0x14f/0x160 net/core/skbuff.c:106 Call Trace: skb_over_panic+0x2c/0x30 net/core/skbuff.c:115 skb_put+0x205/0x210 net/core/skbuff.c:1877 skb_put_zero include/linux/skbuff.h:2270 [inline] cdc_ncm_ndp16 drivers/net/usb/cdc_ncm.c:1116 [inline] cdc_ncm_fill_tx_frame+0x127f/0x3d50 drivers/net/usb/cdc_ncm.c:1293 cdc_ncm_tx_fixup+0x98/0xf0 drivers/net/usb/cdc_ncm.c:1514 By overriding the max value with the default CDC_NCM_NTB_MAX_SIZE_TX when not offered through the system provided params, we ensure enough data space is allocated to handle the CDC data, meaning no crash will occur. Cc: Oliver Neukum Fixes: 289507d3364f9 ("net: cdc_ncm: use sysfs for rx/tx aggregation tuning") Signed-off-by: Lee Jones Reviewed-by: Bjørn Mork Link: https://lore.kernel.org/r/20211202143437.1411410-1-lee.jones@linaro.org Signed-off-by: Jakub Kicinski --- drivers/net/usb/cdc_ncm.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 24753a4da7e6..e303b522efb5 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -181,6 +181,8 @@ static u32 cdc_ncm_check_tx_max(struct usbnet *dev, u32 new_tx) min = ctx->max_datagram_size + ctx->max_ndp_size + sizeof(struct usb_cdc_ncm_nth32); max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_TX, le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize)); + if (max == 0) + max = CDC_NCM_NTB_MAX_SIZE_TX; /* dwNtbOutMaxSize not set */ /* some devices set dwNtbOutMaxSize too low for the above default */ min = min(min, max); -- cgit From 1a1aa356ddf3f16539f5962c01c5f702686dfc15 Mon Sep 17 00:00:00 2001 From: Michal Maloszewski Date: Tue, 26 Oct 2021 12:59:09 +0000 Subject: iavf: Fix reporting when setting descriptor count iavf_set_ringparams doesn't communicate to the user that 1. The user requested descriptor count is out of range. Instead it just quietly sets descriptors to the "clamped" value and calls it done. This makes it look an invalid value was successfully set as the descriptor count when this isn't actually true. 2. The user provided descriptor count needs to be inflated for alignment reasons. This behavior is confusing. The ice driver has already addressed this by rejecting invalid values for descriptor count and messaging for alignment adjustments. Do the same thing here by adding the error and info messages. Fixes: fbb7ddfef253 ("i40evf: core ethtool functionality") Signed-off-by: Anirudh Venkataramanan Signed-off-by: Michal Maloszewski Tested-by: Konrad Jankowski Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/iavf/iavf_ethtool.c | 43 +++++++++++++++++++------- 1 file changed, 32 insertions(+), 11 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c index 0cecaff38d04..461f5237a2f8 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c +++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c @@ -615,23 +615,44 @@ static int iavf_set_ringparam(struct net_device *netdev, if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) return -EINVAL; - new_tx_count = clamp_t(u32, ring->tx_pending, - IAVF_MIN_TXD, - IAVF_MAX_TXD); - new_tx_count = ALIGN(new_tx_count, IAVF_REQ_DESCRIPTOR_MULTIPLE); + if (ring->tx_pending > IAVF_MAX_TXD || + ring->tx_pending < IAVF_MIN_TXD || + ring->rx_pending > IAVF_MAX_RXD || + ring->rx_pending < IAVF_MIN_RXD) { + netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n", + ring->tx_pending, ring->rx_pending, IAVF_MIN_TXD, + IAVF_MAX_RXD, IAVF_REQ_DESCRIPTOR_MULTIPLE); + return -EINVAL; + } - new_rx_count = clamp_t(u32, ring->rx_pending, - IAVF_MIN_RXD, - IAVF_MAX_RXD); - new_rx_count = ALIGN(new_rx_count, IAVF_REQ_DESCRIPTOR_MULTIPLE); + new_tx_count = ALIGN(ring->tx_pending, IAVF_REQ_DESCRIPTOR_MULTIPLE); + if (new_tx_count != ring->tx_pending) + netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n", + new_tx_count); + + new_rx_count = ALIGN(ring->rx_pending, IAVF_REQ_DESCRIPTOR_MULTIPLE); + if (new_rx_count != ring->rx_pending) + netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n", + new_rx_count); /* if nothing to do return success */ if ((new_tx_count == adapter->tx_desc_count) && - (new_rx_count == adapter->rx_desc_count)) + (new_rx_count == adapter->rx_desc_count)) { + netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n"); return 0; + } - adapter->tx_desc_count = new_tx_count; - adapter->rx_desc_count = new_rx_count; + if (new_tx_count != adapter->tx_desc_count) { + netdev_dbg(netdev, "Changing Tx descriptor count from %d to %d\n", + adapter->tx_desc_count, new_tx_count); + adapter->tx_desc_count = new_tx_count; + } + + if (new_rx_count != adapter->rx_desc_count) { + netdev_dbg(netdev, "Changing Rx descriptor count from %d to %d\n", + adapter->rx_desc_count, new_rx_count); + adapter->rx_desc_count = new_rx_count; + } if (netif_running(netdev)) { adapter->flags |= IAVF_FLAG_RESET_NEEDED; -- cgit From 61125b8be85dfbc7e9c7fe1cc6c6d631ab603516 Mon Sep 17 00:00:00 2001 From: Karen Sornek Date: Fri, 14 May 2021 11:43:13 +0200 Subject: i40e: Fix failed opcode appearing if handling messages from VF Fix failed operation code appearing if handling messages from VF. Implemented by waiting for VF appropriate state if request starts handle while VF reset. Without this patch the message handling request while VF is in a reset state ends with error -5 (I40E_ERR_PARAM). Fixes: 5c3c48ac6bf5 ("i40e: implement virtual device interface") Signed-off-by: Grzegorz Szczurek Signed-off-by: Karen Sornek Tested-by: Tony Brelinski Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 70 +++++++++++++++------- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 2 + 2 files changed, 50 insertions(+), 22 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index 80ae264c99ba..f651861442c2 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -1948,6 +1948,32 @@ static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); } +/** + * i40e_sync_vf_state + * @vf: pointer to the VF info + * @state: VF state + * + * Called from a VF message to synchronize the service with a potential + * VF reset state + **/ +static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) +{ + int i; + + /* When handling some messages, it needs VF state to be set. + * It is possible that this flag is cleared during VF reset, + * so there is a need to wait until the end of the reset to + * handle the request message correctly. + */ + for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { + if (test_bit(state, &vf->vf_states)) + return true; + usleep_range(10000, 20000); + } + + return test_bit(state, &vf->vf_states); +} + /** * i40e_vc_get_version_msg * @vf: pointer to the VF info @@ -2008,7 +2034,7 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) size_t len = 0; int ret; - if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -2131,7 +2157,7 @@ static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) bool allmulti = false; bool alluni = false; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err_out; } @@ -2219,7 +2245,7 @@ static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) struct i40e_vsi *vsi; u16 num_qps_all = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto error_param; } @@ -2368,7 +2394,7 @@ static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; int i; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto error_param; } @@ -2540,7 +2566,7 @@ static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) struct i40e_pf *pf = vf->pf; i40e_status aq_ret = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto error_param; } @@ -2590,7 +2616,7 @@ static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) u8 cur_pairs = vf->num_queue_pairs; struct i40e_pf *pf = vf->pf; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) return -EINVAL; if (req_pairs > I40E_MAX_VF_QUEUES) { @@ -2635,7 +2661,7 @@ static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) memset(&stats, 0, sizeof(struct i40e_eth_stats)); - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto error_param; } @@ -2752,7 +2778,7 @@ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) i40e_status ret = 0; int i; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { ret = I40E_ERR_PARAM; goto error_param; @@ -2824,7 +2850,7 @@ static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) i40e_status ret = 0; int i; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { ret = I40E_ERR_PARAM; goto error_param; @@ -2968,7 +2994,7 @@ static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; int i; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; @@ -3088,9 +3114,9 @@ static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) struct i40e_vsi *vsi = NULL; i40e_status aq_ret = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || - (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) { + vrk->key_len != I40E_HKEY_ARRAY_SIZE) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3119,9 +3145,9 @@ static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; u16 i; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || - (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) { + vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3154,7 +3180,7 @@ static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; int len = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3190,7 +3216,7 @@ static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) struct i40e_hw *hw = &pf->hw; i40e_status aq_ret = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3215,7 +3241,7 @@ static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; struct i40e_vsi *vsi; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3241,7 +3267,7 @@ static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; struct i40e_vsi *vsi; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3468,7 +3494,7 @@ static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; int i, ret; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3599,7 +3625,7 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; int i, ret; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err_out; } @@ -3708,7 +3734,7 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) i40e_status aq_ret = 0; u64 speed = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } @@ -3824,7 +3850,7 @@ static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) struct i40e_pf *pf = vf->pf; i40e_status aq_ret = 0; - if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { + if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { aq_ret = I40E_ERR_PARAM; goto err; } diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h index 091e32c1bb46..49575a640a84 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h @@ -18,6 +18,8 @@ #define I40E_MAX_VF_PROMISC_FLAGS 3 +#define I40E_VF_STATE_WAIT_COUNT 20 + /* Various queue ctrls */ enum i40e_queue_ctrl { I40E_QUEUE_CTRL_UNKNOWN = 0, -- cgit From 8aa55ab422d9d0d825ebfb877702ed661e96e682 Mon Sep 17 00:00:00 2001 From: Mateusz Palczewski Date: Fri, 16 Jul 2021 11:33:56 +0200 Subject: i40e: Fix pre-set max number of queues for VF After setting pre-set combined to 16 queues and reserving 16 queues by tc qdisc, pre-set maximum combined queues returned to default value after VF reset being 4 and this generated errors during removing tc. Fixed by removing clear num_req_queues before reset VF. Fixes: e284fc280473 (i40e: Add and delete cloud filter) Signed-off-by: Grzegorz Szczurek Signed-off-by: Mateusz Palczewski Tested-by: Bindushree P Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index f651861442c2..2ea4deb8fc44 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -3823,11 +3823,6 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) /* set this flag only after making sure all inputs are sane */ vf->adq_enabled = true; - /* num_req_queues is set when user changes number of queues via ethtool - * and this causes issue for default VSI(which depends on this variable) - * when ADq is enabled, hence reset it. - */ - vf->num_req_queues = 0; /* reset the VF in order to allocate resources */ i40e_vc_reset_vf(vf, true); -- cgit From 23ec111bf3549aae37140330c31a16abfc172421 Mon Sep 17 00:00:00 2001 From: Norbert Zulinski Date: Mon, 22 Nov 2021 12:29:05 +0100 Subject: i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc When trying to dump VFs VSI RX/TX descriptors using debugfs there was a crash due to NULL pointer dereference in i40e_dbg_dump_desc. Added a check to i40e_dbg_dump_desc that checks if VSI type is correct for dumping RX/TX descriptors. Fixes: 02e9c290814c ("i40e: debugfs interface") Signed-off-by: Sylwester Dziedziuch Signed-off-by: Norbert Zulinski Signed-off-by: Mateusz Palczewski Tested-by: Gurucharan G Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c index 291e61ac3e44..2c1b1da1220e 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c +++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c @@ -553,6 +553,14 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid); return; } + if (vsi->type != I40E_VSI_MAIN && + vsi->type != I40E_VSI_FDIR && + vsi->type != I40E_VSI_VMDQ2) { + dev_info(&pf->pdev->dev, + "vsi %d type %d descriptor rings not available\n", + vsi_seid, vsi->type); + return; + } if (type == RING_TYPE_XDP && !i40e_enabled_xdp_vsi(vsi)) { dev_info(&pf->pdev->dev, "XDP not enabled on VSI %d\n", vsi_seid); return; -- cgit From 94cddf1e9227a171b27292509d59691819c458db Mon Sep 17 00:00:00 2001 From: Vincent Mailhol Date: Tue, 23 Nov 2021 20:16:54 +0900 Subject: can: pch_can: pch_can_rx_normal: fix use after free After calling netif_receive_skb(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is dereferenced just after the call netif_receive_skb(skb). Reordering the lines solves the issue. Fixes: b21d18b51b31 ("can: Topcliff: Add PCH_CAN driver.") Link: https://lore.kernel.org/all/20211123111654.621610-1-mailhol.vincent@wanadoo.fr Cc: stable@vger.kernel.org Signed-off-by: Vincent Mailhol Signed-off-by: Marc Kleine-Budde --- drivers/net/can/pch_can.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 92a54a5fd4c5..964c8a09226a 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -692,11 +692,11 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 obj_num, int quota) cf->data[i + 1] = data_reg >> 8; } - netif_receive_skb(skb); rcv_pkts++; stats->rx_packets++; quota--; stats->rx_bytes += cf->len; + netif_receive_skb(skb); pch_fifo_thresh(priv, obj_num); obj_num++; -- cgit From 3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 24 Nov 2021 17:50:41 +0300 Subject: can: sja1000: fix use after free in ems_pcmcia_add_card() If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up. Fixes: fd734c6f25ae ("can/sja1000: add driver for EMS PCMCIA card") Link: https://lore.kernel.org/all/20211124145041.GB13656@kili Cc: stable@vger.kernel.org Signed-off-by: Dan Carpenter Acked-by: Oliver Hartkopp Tested-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde --- drivers/net/can/sja1000/ems_pcmcia.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/can/sja1000/ems_pcmcia.c b/drivers/net/can/sja1000/ems_pcmcia.c index e21b169c14c0..4642b6d4aaf7 100644 --- a/drivers/net/can/sja1000/ems_pcmcia.c +++ b/drivers/net/can/sja1000/ems_pcmcia.c @@ -234,7 +234,12 @@ static int ems_pcmcia_add_card(struct pcmcia_device *pdev, unsigned long base) free_sja1000dev(dev); } - err = request_irq(dev->irq, &ems_pcmcia_interrupt, IRQF_SHARED, + if (!card->channels) { + err = -ENODEV; + goto failure_cleanup; + } + + err = request_irq(pdev->irq, &ems_pcmcia_interrupt, IRQF_SHARED, DRV_NAME, card); if (!err) return 0; -- cgit From f58ac1adc76b5beda43c64ef359056077df4d93a Mon Sep 17 00:00:00 2001 From: Brian Silverman Date: Mon, 29 Nov 2021 14:26:28 -0800 Subject: can: m_can: Disable and ignore ELO interrupt With the design of this driver, this condition is often triggered. However, the counter that this interrupt indicates an overflow is never read either, so overflowing is harmless. On my system, when a CAN bus starts flapping up and down, this locks up the whole system with lots of interrupts and printks. Specifically, this interrupt indicates the CEL field of ECR has overflowed. All reads of ECR mask out CEL. Fixes: e0d1f4816f2a ("can: m_can: add Bosch M_CAN controller support") Link: https://lore.kernel.org/all/20211129222628.7490-1-brian.silverman@bluerivertech.com Cc: stable@vger.kernel.org Signed-off-by: Brian Silverman Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/m_can.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 2470c47b2e31..91be87c4f4d3 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -204,16 +204,16 @@ enum m_can_reg { /* Interrupts for version 3.0.x */ #define IR_ERR_LEC_30X (IR_STE | IR_FOE | IR_ACKE | IR_BE | IR_CRCE) -#define IR_ERR_BUS_30X (IR_ERR_LEC_30X | IR_WDI | IR_ELO | IR_BEU | \ - IR_BEC | IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | \ - IR_RF1L | IR_RF0L) +#define IR_ERR_BUS_30X (IR_ERR_LEC_30X | IR_WDI | IR_BEU | IR_BEC | \ + IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | IR_RF1L | \ + IR_RF0L) #define IR_ERR_ALL_30X (IR_ERR_STATE | IR_ERR_BUS_30X) /* Interrupts for version >= 3.1.x */ #define IR_ERR_LEC_31X (IR_PED | IR_PEA) -#define IR_ERR_BUS_31X (IR_ERR_LEC_31X | IR_WDI | IR_ELO | IR_BEU | \ - IR_BEC | IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | \ - IR_RF1L | IR_RF0L) +#define IR_ERR_BUS_31X (IR_ERR_LEC_31X | IR_WDI | IR_BEU | IR_BEC | \ + IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | IR_RF1L | \ + IR_RF0L) #define IR_ERR_ALL_31X (IR_ERR_STATE | IR_ERR_BUS_31X) /* Interrupt Line Select (ILS) */ @@ -810,8 +810,6 @@ static void m_can_handle_other_err(struct net_device *dev, u32 irqstatus) { if (irqstatus & IR_WDI) netdev_err(dev, "Message RAM Watchdog event due to missing READY\n"); - if (irqstatus & IR_ELO) - netdev_err(dev, "Error Logging Overflow\n"); if (irqstatus & IR_BEU) netdev_err(dev, "Bit Error Uncorrected\n"); if (irqstatus & IR_BEC) -- cgit From 31cb32a590d62b18f69a9a6d433f4e69c74fdd56 Mon Sep 17 00:00:00 2001 From: Vincent Mailhol Date: Sun, 7 Nov 2021 14:07:55 +0900 Subject: can: m_can: m_can_read_fifo: fix memory leak in error branch In m_can_read_fifo(), if the second call to m_can_fifo_read() fails, the function jump to the out_fail label and returns without calling m_can_receive_skb(). This means that the skb previously allocated by alloc_can_skb() is not freed. In other terms, this is a memory leak. This patch adds a goto label to destroy the skb if an error occurs. Issue was found with GCC -fanalyzer, please follow the link below for details. Fixes: e39381770ec9 ("can: m_can: Disable IRQs on FIFO bus errors") Link: https://lore.kernel.org/all/20211107050755.70655-1-mailhol.vincent@wanadoo.fr Cc: stable@vger.kernel.org Cc: Matt Kline Signed-off-by: Vincent Mailhol Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/m_can.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 91be87c4f4d3..e330b4c121bf 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -517,7 +517,7 @@ static int m_can_read_fifo(struct net_device *dev, u32 rxfs) err = m_can_fifo_read(cdev, fgi, M_CAN_FIFO_DATA, cf->data, DIV_ROUND_UP(cf->len, 4)); if (err) - goto out_fail; + goto out_free_skb; } /* acknowledge rx fifo 0 */ @@ -532,6 +532,8 @@ static int m_can_read_fifo(struct net_device *dev, u32 rxfs) return 0; +out_free_skb: + kfree_skb(skb); out_fail: netdev_err(dev, "FIFO read returned %d\n", err); return err; -- cgit From d737de2d7cc3efdacbf17d4e22efc75697bd76d9 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Thu, 18 Nov 2021 15:40:11 +0100 Subject: can: m_can: pci: fix iomap_read_fifo() and iomap_write_fifo() The same fix that was previously done in m_can_platform in commit 99d173fbe894 ("can: m_can: fix iomap_read_fifo() and iomap_write_fifo()") is required in m_can_pci as well to make iomap_read_fifo() and iomap_write_fifo() work for val_count > 1. Fixes: 812270e5445b ("can: m_can: Batch FIFO writes during CAN transmit") Fixes: 1aa6772f64b4 ("can: m_can: Batch FIFO reads during CAN receive") Link: https://lore.kernel.org/all/20211118144011.10921-1-matthias.schiffer@ew.tq-group.com Cc: stable@vger.kernel.org Cc: Matt Kline Signed-off-by: Matthias Schiffer Tested-by: Jarkko Nikula Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/m_can_pci.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/can/m_can/m_can_pci.c b/drivers/net/can/m_can/m_can_pci.c index 89cc3d41e952..d72c294ac4d3 100644 --- a/drivers/net/can/m_can/m_can_pci.c +++ b/drivers/net/can/m_can/m_can_pci.c @@ -42,8 +42,13 @@ static u32 iomap_read_reg(struct m_can_classdev *cdev, int reg) static int iomap_read_fifo(struct m_can_classdev *cdev, int offset, void *val, size_t val_count) { struct m_can_pci_priv *priv = cdev_to_priv(cdev); + void __iomem *src = priv->base + offset; - ioread32_rep(priv->base + offset, val, val_count); + while (val_count--) { + *(unsigned int *)val = ioread32(src); + val += 4; + src += 4; + } return 0; } @@ -61,8 +66,13 @@ static int iomap_write_fifo(struct m_can_classdev *cdev, int offset, const void *val, size_t val_count) { struct m_can_pci_priv *priv = cdev_to_priv(cdev); + void __iomem *dst = priv->base + offset; - iowrite32_rep(priv->base + offset, val, val_count); + while (val_count--) { + iowrite32(*(unsigned int *)val, dst); + val += 4; + dst += 4; + } return 0; } -- cgit From 8c03b8bff765ac4146342ef90931bb50e788c758 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Mon, 15 Nov 2021 10:18:49 +0100 Subject: can: m_can: pci: fix incorrect reference clock rate When testing the CAN controller on our Ekhart Lake hardware, we determined that all communication was running with twice the configured bitrate. Changing the reference clock rate from 100MHz to 200MHz fixed this. Intel's support has confirmed to us that 200MHz is indeed the correct clock rate. Fixes: cab7ffc0324f ("can: m_can: add PCI glue driver for Intel Elkhart Lake") Link: https://lore.kernel.org/all/c9cf3995f45c363e432b3ae8eb1275e54f009fc8.1636967198.git.matthias.schiffer@ew.tq-group.com Cc: stable@vger.kernel.org Signed-off-by: Matthias Schiffer Acked-by: Jarkko Nikula Reviewed-by: Jarkko Nikula Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/m_can_pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/can/m_can/m_can_pci.c b/drivers/net/can/m_can/m_can_pci.c index d72c294ac4d3..8f184a852a0a 100644 --- a/drivers/net/can/m_can/m_can_pci.c +++ b/drivers/net/can/m_can/m_can_pci.c @@ -18,7 +18,7 @@ #define M_CAN_PCI_MMIO_BAR 0 -#define M_CAN_CLOCK_FREQ_EHL 100000000 +#define M_CAN_CLOCK_FREQ_EHL 200000000 #define CTL_CSR_INT_CTL_OFFSET 0x508 struct m_can_pci_priv { -- cgit From ea768b2ffec6cc9c3e17c37ef75d0539b8f89ff5 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Mon, 15 Nov 2021 10:18:50 +0100 Subject: Revert "can: m_can: remove support for custom bit timing" The timing limits specified by the Elkhart Lake CPU datasheets do not match the defaults. Let's reintroduce the support for custom bit timings. This reverts commit 0ddd83fbebbc5537f9d180d31f659db3564be708. Link: https://lore.kernel.org/all/00c9e2596b1a548906921a574d4ef7a03c0dace0.1636967198.git.matthias.schiffer@ew.tq-group.com Signed-off-by: Matthias Schiffer Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/m_can.c | 24 ++++++++++++++++++------ drivers/net/can/m_can/m_can.h | 3 +++ 2 files changed, 21 insertions(+), 6 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index e330b4c121bf..c2a8421e7845 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -1494,20 +1494,32 @@ static int m_can_dev_setup(struct m_can_classdev *cdev) case 30: /* CAN_CTRLMODE_FD_NON_ISO is fixed with M_CAN IP v3.0.x */ can_set_static_ctrlmode(dev, CAN_CTRLMODE_FD_NON_ISO); - cdev->can.bittiming_const = &m_can_bittiming_const_30X; - cdev->can.data_bittiming_const = &m_can_data_bittiming_const_30X; + cdev->can.bittiming_const = cdev->bit_timing ? + cdev->bit_timing : &m_can_bittiming_const_30X; + + cdev->can.data_bittiming_const = cdev->data_timing ? + cdev->data_timing : + &m_can_data_bittiming_const_30X; break; case 31: /* CAN_CTRLMODE_FD_NON_ISO is fixed with M_CAN IP v3.1.x */ can_set_static_ctrlmode(dev, CAN_CTRLMODE_FD_NON_ISO); - cdev->can.bittiming_const = &m_can_bittiming_const_31X; - cdev->can.data_bittiming_const = &m_can_data_bittiming_const_31X; + cdev->can.bittiming_const = cdev->bit_timing ? + cdev->bit_timing : &m_can_bittiming_const_31X; + + cdev->can.data_bittiming_const = cdev->data_timing ? + cdev->data_timing : + &m_can_data_bittiming_const_31X; break; case 32: case 33: /* Support both MCAN version v3.2.x and v3.3.0 */ - cdev->can.bittiming_const = &m_can_bittiming_const_31X; - cdev->can.data_bittiming_const = &m_can_data_bittiming_const_31X; + cdev->can.bittiming_const = cdev->bit_timing ? + cdev->bit_timing : &m_can_bittiming_const_31X; + + cdev->can.data_bittiming_const = cdev->data_timing ? + cdev->data_timing : + &m_can_data_bittiming_const_31X; cdev->can.ctrlmode_supported |= (m_can_niso_supported(cdev) ? diff --git a/drivers/net/can/m_can/m_can.h b/drivers/net/can/m_can/m_can.h index d18b515e6ccc..ad063b101411 100644 --- a/drivers/net/can/m_can/m_can.h +++ b/drivers/net/can/m_can/m_can.h @@ -85,6 +85,9 @@ struct m_can_classdev { struct sk_buff *tx_skb; struct phy *transceiver; + struct can_bittiming_const *bit_timing; + struct can_bittiming_const *data_timing; + struct m_can_ops *ops; int version; -- cgit From ea22ba40debee29ee7257c42002409899e9311c1 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Mon, 15 Nov 2021 10:18:51 +0100 Subject: can: m_can: make custom bittiming fields const The assigned timing structs will be defined a const anyway, so we can avoid a few casts by declaring the struct fields as const as well. Link: https://lore.kernel.org/all/4508fa4e639164b2584c49a065d90c78a91fa568.1636967198.git.matthias.schiffer@ew.tq-group.com Signed-off-by: Matthias Schiffer Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/m_can.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/can/m_can/m_can.h b/drivers/net/can/m_can/m_can.h index ad063b101411..2c5d40997168 100644 --- a/drivers/net/can/m_can/m_can.h +++ b/drivers/net/can/m_can/m_can.h @@ -85,8 +85,8 @@ struct m_can_classdev { struct sk_buff *tx_skb; struct phy *transceiver; - struct can_bittiming_const *bit_timing; - struct can_bittiming_const *data_timing; + const struct can_bittiming_const *bit_timing; + const struct can_bittiming_const *data_timing; struct m_can_ops *ops; -- cgit From ea4c1787685dbf9842046f05b6390b6901ee6ba2 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Mon, 15 Nov 2021 10:18:52 +0100 Subject: can: m_can: pci: use custom bit timings for Elkhart Lake MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The relevant datasheet [1] specifies nonstandard limits for the bit timing parameters. While it is unclear what the exact effect of violating these limits is, it seems like a good idea to adhere to the documentation. [1] Intel Atom® x6000E Series, and Intel® Pentium® and Celeron® N and J Series Processors for IoT Applications Datasheet, Volume 2 (Book 3 of 3), July 2021, Revision 001 Fixes: cab7ffc0324f ("can: m_can: add PCI glue driver for Intel Elkhart Lake") Link: https://lore.kernel.org/all/9eba5d7c05a48ead4024ffa6e5926f191d8c6b38.1636967198.git.matthias.schiffer@ew.tq-group.com Signed-off-by: Matthias Schiffer Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/m_can_pci.c | 48 +++++++++++++++++++++++++++++++++++---- 1 file changed, 44 insertions(+), 4 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/can/m_can/m_can_pci.c b/drivers/net/can/m_can/m_can_pci.c index 8f184a852a0a..b56a54d6c5a9 100644 --- a/drivers/net/can/m_can/m_can_pci.c +++ b/drivers/net/can/m_can/m_can_pci.c @@ -18,9 +18,14 @@ #define M_CAN_PCI_MMIO_BAR 0 -#define M_CAN_CLOCK_FREQ_EHL 200000000 #define CTL_CSR_INT_CTL_OFFSET 0x508 +struct m_can_pci_config { + const struct can_bittiming_const *bit_timing; + const struct can_bittiming_const *data_timing; + unsigned int clock_freq; +}; + struct m_can_pci_priv { struct m_can_classdev cdev; @@ -84,9 +89,40 @@ static struct m_can_ops m_can_pci_ops = { .read_fifo = iomap_read_fifo, }; +static const struct can_bittiming_const m_can_bittiming_const_ehl = { + .name = KBUILD_MODNAME, + .tseg1_min = 2, /* Time segment 1 = prop_seg + phase_seg1 */ + .tseg1_max = 64, + .tseg2_min = 1, /* Time segment 2 = phase_seg2 */ + .tseg2_max = 128, + .sjw_max = 128, + .brp_min = 1, + .brp_max = 512, + .brp_inc = 1, +}; + +static const struct can_bittiming_const m_can_data_bittiming_const_ehl = { + .name = KBUILD_MODNAME, + .tseg1_min = 2, /* Time segment 1 = prop_seg + phase_seg1 */ + .tseg1_max = 16, + .tseg2_min = 1, /* Time segment 2 = phase_seg2 */ + .tseg2_max = 8, + .sjw_max = 4, + .brp_min = 1, + .brp_max = 32, + .brp_inc = 1, +}; + +static const struct m_can_pci_config m_can_pci_ehl = { + .bit_timing = &m_can_bittiming_const_ehl, + .data_timing = &m_can_data_bittiming_const_ehl, + .clock_freq = 200000000, +}; + static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) { struct device *dev = &pci->dev; + const struct m_can_pci_config *cfg; struct m_can_classdev *mcan_class; struct m_can_pci_priv *priv; void __iomem *base; @@ -114,6 +150,8 @@ static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) if (!mcan_class) return -ENOMEM; + cfg = (const struct m_can_pci_config *)id->driver_data; + priv = cdev_to_priv(mcan_class); priv->base = base; @@ -125,7 +163,9 @@ static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) mcan_class->dev = &pci->dev; mcan_class->net->irq = pci_irq_vector(pci, 0); mcan_class->pm_clock_support = 1; - mcan_class->can.clock.freq = id->driver_data; + mcan_class->bit_timing = cfg->bit_timing; + mcan_class->data_timing = cfg->data_timing; + mcan_class->can.clock.freq = cfg->clock_freq; mcan_class->ops = &m_can_pci_ops; pci_set_drvdata(pci, mcan_class); @@ -178,8 +218,8 @@ static SIMPLE_DEV_PM_OPS(m_can_pci_pm_ops, m_can_pci_suspend, m_can_pci_resume); static const struct pci_device_id m_can_pci_id_table[] = { - { PCI_VDEVICE(INTEL, 0x4bc1), M_CAN_CLOCK_FREQ_EHL, }, - { PCI_VDEVICE(INTEL, 0x4bc2), M_CAN_CLOCK_FREQ_EHL, }, + { PCI_VDEVICE(INTEL, 0x4bc1), (kernel_ulong_t)&m_can_pci_ehl, }, + { PCI_VDEVICE(INTEL, 0x4bc2), (kernel_ulong_t)&m_can_pci_ehl, }, { } /* Terminating Entry */ }; MODULE_DEVICE_TABLE(pci, m_can_pci_id_table); -- cgit From d17b9737c2bc09b4ac6caf469826e5a7ce3ffab7 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 7 Dec 2021 11:24:16 +0300 Subject: net/qla3xxx: fix an error code in ql_adapter_up() The ql_wait_for_drvr_lock() fails and returns false, then this function should return an error code instead of returning success. The other problem is that the success path prints an error message netdev_err(ndev, "Releasing driver lock\n"); Delete that and re-order the code a little to make it more clear. Fixes: 5a4faa873782 ("[PATCH] qla3xxx NIC driver") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/20211207082416.GA16110@kili Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/qlogic/qla3xxx.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c index 1e6d72adfe43..71523d747e93 100644 --- a/drivers/net/ethernet/qlogic/qla3xxx.c +++ b/drivers/net/ethernet/qlogic/qla3xxx.c @@ -3480,20 +3480,19 @@ static int ql_adapter_up(struct ql3_adapter *qdev) spin_lock_irqsave(&qdev->hw_lock, hw_flags); - err = ql_wait_for_drvr_lock(qdev); - if (err) { - err = ql_adapter_initialize(qdev); - if (err) { - netdev_err(ndev, "Unable to initialize adapter\n"); - goto err_init; - } - netdev_err(ndev, "Releasing driver lock\n"); - ql_sem_unlock(qdev, QL_DRVR_SEM_MASK); - } else { + if (!ql_wait_for_drvr_lock(qdev)) { netdev_err(ndev, "Could not acquire driver lock\n"); + err = -ENODEV; goto err_lock; } + err = ql_adapter_initialize(qdev); + if (err) { + netdev_err(ndev, "Unable to initialize adapter\n"); + goto err_init; + } + ql_sem_unlock(qdev, QL_DRVR_SEM_MASK); + spin_unlock_irqrestore(&qdev->hw_lock, hw_flags); set_bit(QL_ADAPTER_UP, &qdev->flags); -- cgit From f23ab04dd6f703e282bb2d51fe3ae14f4b88a628 Mon Sep 17 00:00:00 2001 From: Yahui Cao Date: Wed, 5 May 2021 14:18:00 -0700 Subject: ice: fix FDIR init missing when reset VF When VF is being reset, ice_reset_vf() will be called and FDIR resource should be released and initialized again. Fixes: 1f7ea1cd6a37 ("ice: Enable FDIR Configure for AVF") Signed-off-by: Yahui Cao Tested-by: Konrad Jankowski Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index 217ff5e9a6f1..c2431bc9d9ce 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -1617,6 +1617,7 @@ bool ice_reset_all_vfs(struct ice_pf *pf, bool is_vflr) ice_vc_set_default_allowlist(vf); ice_vf_fdir_exit(vf); + ice_vf_fdir_init(vf); /* clean VF control VSI when resetting VFs since it should be * setup only when VF creates its first FDIR rule. */ @@ -1747,6 +1748,7 @@ bool ice_reset_vf(struct ice_vf *vf, bool is_vflr) } ice_vf_fdir_exit(vf); + ice_vf_fdir_init(vf); /* clean VF control VSI when resetting VF since it should be setup * only when VF creates its first FDIR rule. */ -- cgit From 2657e16d8c52fb6ffc7250b0b6536f93886e32d6 Mon Sep 17 00:00:00 2001 From: Paul Greenwalt Date: Mon, 12 Jul 2021 07:54:25 -0400 Subject: ice: rearm other interrupt cause register after enabling VFs The other interrupt cause register (OICR), global interrupt 0, is disabled when enabling VFs to prevent handling VFLR. If the OICR is not rearmed then the VF cannot communicate with the PF. Rearm the OICR after enabling VFs. Fixes: 916c7fdf5e93 ("ice: Separate VF VSI initialization/creation from reset flow") Signed-off-by: Paul Greenwalt Tested-by: Tony Brelinski Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c index c2431bc9d9ce..6427e7ec93de 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c @@ -2023,6 +2023,10 @@ static int ice_ena_vfs(struct ice_pf *pf, u16 num_vfs) if (ret) goto err_unroll_sriov; + /* rearm global interrupts */ + if (test_and_clear_bit(ICE_OICR_INTR_DIS, pf->state)) + ice_irq_dynamic_ena(hw, NULL, NULL); + return 0; err_unroll_sriov: -- cgit From 6d39ea19b0fb6cc72427c862b32d39f5af468be3 Mon Sep 17 00:00:00 2001 From: Dave Ertman Date: Tue, 12 Oct 2021 13:31:21 -0700 Subject: ice: Fix problems with DSCP QoS implementation The patch that implemented DSCP QoS implementation removed a bandwidth check that was used to check for a specific condition caused by some corner cases. This check should not of been removed. The same patch also added a check for when the DCBx state could be changed in relation to DSCP, but the check was erroneously added nested in a check for CEE mode, which made the check useless. Fix these problems by re-adding the bandwidth check and relocating the DSCP mode check earlier in the function that changes DCBx state in the driver. Fixes: 2a87bd73e50d ("ice: Add DSCP support") Reported-by: kernel test robot Signed-off-by: Dave Ertman Tested-by: Gurucharan G Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_dcb_nl.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_nl.c b/drivers/net/ethernet/intel/ice/ice_dcb_nl.c index 7fdeb411b6df..3eb01731e496 100644 --- a/drivers/net/ethernet/intel/ice/ice_dcb_nl.c +++ b/drivers/net/ethernet/intel/ice/ice_dcb_nl.c @@ -97,6 +97,9 @@ static int ice_dcbnl_setets(struct net_device *netdev, struct ieee_ets *ets) new_cfg->etscfg.maxtcs = pf->hw.func_caps.common_cap.maxtc; + if (!bwcfg) + new_cfg->etscfg.tcbwtable[0] = 100; + if (!bwrec) new_cfg->etsrec.tcbwtable[0] = 100; @@ -167,15 +170,18 @@ static u8 ice_dcbnl_setdcbx(struct net_device *netdev, u8 mode) if (mode == pf->dcbx_cap) return ICE_DCB_NO_HW_CHG; - pf->dcbx_cap = mode; qos_cfg = &pf->hw.port_info->qos_cfg; - if (mode & DCB_CAP_DCBX_VER_CEE) { - if (qos_cfg->local_dcbx_cfg.pfc_mode == ICE_QOS_MODE_DSCP) - return ICE_DCB_NO_HW_CHG; + + /* DSCP configuration is not DCBx negotiated */ + if (qos_cfg->local_dcbx_cfg.pfc_mode == ICE_QOS_MODE_DSCP) + return ICE_DCB_NO_HW_CHG; + + pf->dcbx_cap = mode; + + if (mode & DCB_CAP_DCBX_VER_CEE) qos_cfg->local_dcbx_cfg.dcbx_mode = ICE_DCBX_MODE_CEE; - } else { + else qos_cfg->local_dcbx_cfg.dcbx_mode = ICE_DCBX_MODE_IEEE; - } dev_info(ice_pf_to_dev(pf), "DCBx mode = 0x%x\n", mode); return ICE_DCB_HW_CHG_RST; -- cgit From 28dc1b86f8ea9fd6f4c9e0b363db73ecabf84e22 Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Fri, 22 Oct 2021 17:28:17 -0700 Subject: ice: ignore dropped packets during init If the hardware is constantly receiving unicast or broadcast packets during driver load, the device previously counted many GLV_RDPC (VSI dropped packets) events during init. This causes confusing dropped packet statistics during driver load. The dropped packets counter incrementing does stop once the driver finishes loading. Avoid this problem by baselining our statistics at the end of driver open instead of the end of probe. Fixes: cdedef59deb0 ("ice: Configure VSIs for Tx/Rx") Signed-off-by: Jesse Brandeburg Tested-by: Gurucharan G Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_main.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 4d1fc48c9744..c6d6ce52e2ca 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -5881,6 +5881,9 @@ static int ice_up_complete(struct ice_vsi *vsi) netif_carrier_on(vsi->netdev); } + /* clear this now, and the first stats read will be used as baseline */ + vsi->stat_offsets_loaded = false; + ice_service_task_schedule(pf); return 0; -- cgit From 0e32ff024035b693a3304b3ffe30fba58e2ab48c Mon Sep 17 00:00:00 2001 From: Michal Swiatkowski Date: Tue, 16 Nov 2021 11:24:26 +0100 Subject: ice: fix choosing UDP header type In tunnels packet there can be two UDP headers: - outer which for hw should be mark as ICE_UDP_OF - inner which for hw should be mark as ICE_UDP_ILOS or as ICE_TCP_IL if inner header is of TCP type In none tunnels packet header can be: - UDP, which for hw should be mark as ICE_UDP_ILOS - TCP, which for hw should be mark as ICE_TCP_IL Change incorrect ICE_UDP_OF for none tunnel packets to ICE_UDP_ILOS. ICE_UDP_OF is incorrect for none tunnel packets and setting it leads to error from hw while adding this kind of recipe. In summary, for tunnel outer port type should always be set to ICE_UDP_OF, for none tunnel outer and tunnel inner it should always be set to ICE_UDP_ILOS. Fixes: 9e300987d4a8 ("ice: VXLAN and Geneve TC support") Signed-off-by: Michal Swiatkowski Tested-by: Sandeep Penigalapati Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_tc_lib.c | 27 ++++++++++----------------- 1 file changed, 10 insertions(+), 17 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/ice/ice_tc_lib.c b/drivers/net/ethernet/intel/ice/ice_tc_lib.c index e5d23feb6701..384439a267ad 100644 --- a/drivers/net/ethernet/intel/ice/ice_tc_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_tc_lib.c @@ -74,21 +74,13 @@ static enum ice_protocol_type ice_proto_type_from_ipv6(bool inner) return inner ? ICE_IPV6_IL : ICE_IPV6_OFOS; } -static enum ice_protocol_type -ice_proto_type_from_l4_port(bool inner, u16 ip_proto) +static enum ice_protocol_type ice_proto_type_from_l4_port(u16 ip_proto) { - if (inner) { - switch (ip_proto) { - case IPPROTO_UDP: - return ICE_UDP_ILOS; - } - } else { - switch (ip_proto) { - case IPPROTO_TCP: - return ICE_TCP_IL; - case IPPROTO_UDP: - return ICE_UDP_OF; - } + switch (ip_proto) { + case IPPROTO_TCP: + return ICE_TCP_IL; + case IPPROTO_UDP: + return ICE_UDP_ILOS; } return 0; @@ -191,8 +183,9 @@ ice_tc_fill_tunnel_outer(u32 flags, struct ice_tc_flower_fltr *fltr, i++; } - if (flags & ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT) { - list[i].type = ice_proto_type_from_l4_port(false, hdr->l3_key.ip_proto); + if ((flags & ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT) && + hdr->l3_key.ip_proto == IPPROTO_UDP) { + list[i].type = ICE_UDP_OF; list[i].h_u.l4_hdr.dst_port = hdr->l4_key.dst_port; list[i].m_u.l4_hdr.dst_port = hdr->l4_mask.dst_port; i++; @@ -317,7 +310,7 @@ ice_tc_fill_rules(struct ice_hw *hw, u32 flags, ICE_TC_FLWR_FIELD_SRC_L4_PORT)) { struct ice_tc_l4_hdr *l4_key, *l4_mask; - list[i].type = ice_proto_type_from_l4_port(inner, headers->l3_key.ip_proto); + list[i].type = ice_proto_type_from_l4_port(headers->l3_key.ip_proto); l4_key = &headers->l4_key; l4_mask = &headers->l4_mask; -- cgit From de6acd1cdd4d38823b7f4adae82e8a7d62993354 Mon Sep 17 00:00:00 2001 From: Michal Swiatkowski Date: Mon, 22 Nov 2021 16:39:25 +0100 Subject: ice: fix adding different tunnels Adding filters with the same values inside for VXLAN and Geneve causes HW error, because it looks exactly the same. To choose between different type of tunnels new recipe is needed. Add storing tunnel types in creating recipes function and start checking it in finding function. Change getting open tunnels function to return port on correct tunnel type. This is needed to copy correct port to dummy packet. Block user from adding enc_dst_port via tc flower, because VXLAN and Geneve filters can be created only with destination port which was previously opened. Fixes: 8b032a55c1bd5 ("ice: low level support for tunnels") Signed-off-by: Michal Swiatkowski Tested-by: Sandeep Penigalapati Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c | 4 ++-- drivers/net/ethernet/intel/ice/ice_fdir.c | 2 +- drivers/net/ethernet/intel/ice/ice_flex_pipe.c | 7 +++++-- drivers/net/ethernet/intel/ice/ice_flex_pipe.h | 3 ++- drivers/net/ethernet/intel/ice/ice_switch.c | 19 +++++++++++++------ drivers/net/ethernet/intel/ice/ice_tc_lib.c | 3 ++- 6 files changed, 25 insertions(+), 13 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c index 38960bcc384c..b6e7f47c8c78 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c @@ -1268,7 +1268,7 @@ ice_fdir_write_all_fltr(struct ice_pf *pf, struct ice_fdir_fltr *input, bool is_tun = tun == ICE_FD_HW_SEG_TUN; int err; - if (is_tun && !ice_get_open_tunnel_port(&pf->hw, &port_num)) + if (is_tun && !ice_get_open_tunnel_port(&pf->hw, &port_num, TNL_ALL)) continue; err = ice_fdir_write_fltr(pf, input, add, is_tun); if (err) @@ -1652,7 +1652,7 @@ int ice_add_fdir_ethtool(struct ice_vsi *vsi, struct ethtool_rxnfc *cmd) } /* return error if not an update and no available filters */ - fltrs_needed = ice_get_open_tunnel_port(hw, &tunnel_port) ? 2 : 1; + fltrs_needed = ice_get_open_tunnel_port(hw, &tunnel_port, TNL_ALL) ? 2 : 1; if (!ice_fdir_find_fltr_by_idx(hw, fsp->location) && ice_fdir_num_avail_fltr(hw, pf->vsi[vsi->idx]) < fltrs_needed) { dev_err(dev, "Failed to add filter. The maximum number of flow director filters has been reached.\n"); diff --git a/drivers/net/ethernet/intel/ice/ice_fdir.c b/drivers/net/ethernet/intel/ice/ice_fdir.c index cbd8424631e3..4dca009bdd50 100644 --- a/drivers/net/ethernet/intel/ice/ice_fdir.c +++ b/drivers/net/ethernet/intel/ice/ice_fdir.c @@ -924,7 +924,7 @@ ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input, memcpy(pkt, ice_fdir_pkt[idx].pkt, ice_fdir_pkt[idx].pkt_len); loc = pkt; } else { - if (!ice_get_open_tunnel_port(hw, &tnl_port)) + if (!ice_get_open_tunnel_port(hw, &tnl_port, TNL_ALL)) return ICE_ERR_DOES_NOT_EXIST; if (!ice_fdir_pkt[idx].tun_pkt) return ICE_ERR_PARAM; diff --git a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c index 23cfcceb1536..6ad1c2559724 100644 --- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c +++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c @@ -1899,9 +1899,11 @@ static struct ice_buf *ice_pkg_buf(struct ice_buf_build *bld) * ice_get_open_tunnel_port - retrieve an open tunnel port * @hw: pointer to the HW structure * @port: returns open port + * @type: type of tunnel, can be TNL_LAST if it doesn't matter */ bool -ice_get_open_tunnel_port(struct ice_hw *hw, u16 *port) +ice_get_open_tunnel_port(struct ice_hw *hw, u16 *port, + enum ice_tunnel_type type) { bool res = false; u16 i; @@ -1909,7 +1911,8 @@ ice_get_open_tunnel_port(struct ice_hw *hw, u16 *port) mutex_lock(&hw->tnl_lock); for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++) - if (hw->tnl.tbl[i].valid && hw->tnl.tbl[i].port) { + if (hw->tnl.tbl[i].valid && hw->tnl.tbl[i].port && + (type == TNL_LAST || type == hw->tnl.tbl[i].type)) { *port = hw->tnl.tbl[i].port; res = true; break; diff --git a/drivers/net/ethernet/intel/ice/ice_flex_pipe.h b/drivers/net/ethernet/intel/ice/ice_flex_pipe.h index 344c2637facd..a2863f38fd1f 100644 --- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.h +++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.h @@ -33,7 +33,8 @@ enum ice_status ice_get_sw_fv_list(struct ice_hw *hw, u8 *prot_ids, u16 ids_cnt, unsigned long *bm, struct list_head *fv_list); bool -ice_get_open_tunnel_port(struct ice_hw *hw, u16 *port); +ice_get_open_tunnel_port(struct ice_hw *hw, u16 *port, + enum ice_tunnel_type type); int ice_udp_tunnel_set_port(struct net_device *netdev, unsigned int table, unsigned int idx, struct udp_tunnel_info *ti); int ice_udp_tunnel_unset_port(struct net_device *netdev, unsigned int table, diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c index 793f4a9fc2cd..183d93033890 100644 --- a/drivers/net/ethernet/intel/ice/ice_switch.c +++ b/drivers/net/ethernet/intel/ice/ice_switch.c @@ -3796,10 +3796,13 @@ static struct ice_protocol_entry ice_prot_id_tbl[ICE_PROTOCOL_LAST] = { * ice_find_recp - find a recipe * @hw: pointer to the hardware structure * @lkup_exts: extension sequence to match + * @tun_type: type of recipe tunnel * * Returns index of matching recipe, or ICE_MAX_NUM_RECIPES if not found. */ -static u16 ice_find_recp(struct ice_hw *hw, struct ice_prot_lkup_ext *lkup_exts) +static u16 +ice_find_recp(struct ice_hw *hw, struct ice_prot_lkup_ext *lkup_exts, + enum ice_sw_tunnel_type tun_type) { bool refresh_required = true; struct ice_sw_recipe *recp; @@ -3860,8 +3863,9 @@ static u16 ice_find_recp(struct ice_hw *hw, struct ice_prot_lkup_ext *lkup_exts) } /* If for "i"th recipe the found was never set to false * then it means we found our match + * Also tun type of recipe needs to be checked */ - if (found) + if (found && recp[i].tun_type == tun_type) return i; /* Return the recipe ID */ } } @@ -4651,11 +4655,12 @@ ice_add_adv_recipe(struct ice_hw *hw, struct ice_adv_lkup_elem *lkups, } /* Look for a recipe which matches our requested fv / mask list */ - *rid = ice_find_recp(hw, lkup_exts); + *rid = ice_find_recp(hw, lkup_exts, rinfo->tun_type); if (*rid < ICE_MAX_NUM_RECIPES) /* Success if found a recipe that match the existing criteria */ goto err_unroll; + rm->tun_type = rinfo->tun_type; /* Recipe we need does not exist, add a recipe */ status = ice_add_sw_recipe(hw, rm, profiles); if (status) @@ -4958,11 +4963,13 @@ ice_fill_adv_packet_tun(struct ice_hw *hw, enum ice_sw_tunnel_type tun_type, switch (tun_type) { case ICE_SW_TUN_VXLAN: + if (!ice_get_open_tunnel_port(hw, &open_port, TNL_VXLAN)) + return ICE_ERR_CFG; + break; case ICE_SW_TUN_GENEVE: - if (!ice_get_open_tunnel_port(hw, &open_port)) + if (!ice_get_open_tunnel_port(hw, &open_port, TNL_GENEVE)) return ICE_ERR_CFG; break; - default: /* Nothing needs to be done for this tunnel type */ return 0; @@ -5555,7 +5562,7 @@ ice_rem_adv_rule(struct ice_hw *hw, struct ice_adv_lkup_elem *lkups, if (status) return status; - rid = ice_find_recp(hw, &lkup_exts); + rid = ice_find_recp(hw, &lkup_exts, rinfo->tun_type); /* If did not find a recipe that match the existing criteria */ if (rid == ICE_MAX_NUM_RECIPES) return ICE_ERR_PARAM; diff --git a/drivers/net/ethernet/intel/ice/ice_tc_lib.c b/drivers/net/ethernet/intel/ice/ice_tc_lib.c index 384439a267ad..25cca5c4ae57 100644 --- a/drivers/net/ethernet/intel/ice/ice_tc_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_tc_lib.c @@ -795,7 +795,8 @@ ice_parse_tunnel_attr(struct net_device *dev, struct flow_rule *rule, headers->l3_mask.ttl = match.mask->ttl; } - if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_PORTS)) { + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_PORTS) && + fltr->tunnel_type != TNL_VXLAN && fltr->tunnel_type != TNL_GENEVE) { struct flow_match_ports match; flow_rule_match_enc_ports(rule, &match); -- cgit From d43b75fbc23f0ac1ef9c14a5a166d3ccb761a451 Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Fri, 26 Nov 2021 15:36:12 +0100 Subject: vrf: don't run conntrack on vrf with !dflt qdisc After the below patch, the conntrack attached to skb is set to "notrack" in the context of vrf device, for locally generated packets. But this is true only when the default qdisc is set to the vrf device. When changing the qdisc, notrack is not set anymore. In fact, there is a shortcut in the vrf driver, when the default qdisc is set, see commit dcdd43c41e60 ("net: vrf: performance improvements for IPv4") for more details. This patch ensures that the behavior is always the same, whatever the qdisc is. To demonstrate the difference, a new test is added in conntrack_vrf.sh. Fixes: 8c9c296adfae ("vrf: run conntrack only in context of lower/physdev for locally generated packets") Signed-off-by: Nicolas Dichtel Acked-by: Florian Westphal Reviewed-by: David Ahern Signed-off-by: Pablo Neira Ayuso --- drivers/net/vrf.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index ccf677015d5b..38c2f0dbe795 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -768,8 +768,6 @@ static struct sk_buff *vrf_ip6_out_direct(struct net_device *vrf_dev, skb->dev = vrf_dev; - vrf_nf_set_untracked(skb); - err = nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, net, sk, skb, NULL, vrf_dev, vrf_ip6_out_direct_finish); @@ -790,6 +788,8 @@ static struct sk_buff *vrf_ip6_out(struct net_device *vrf_dev, if (rt6_need_strict(&ipv6_hdr(skb)->daddr)) return skb; + vrf_nf_set_untracked(skb); + if (qdisc_tx_is_default(vrf_dev) || IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) return vrf_ip6_out_direct(vrf_dev, sk, skb); @@ -998,8 +998,6 @@ static struct sk_buff *vrf_ip_out_direct(struct net_device *vrf_dev, skb->dev = vrf_dev; - vrf_nf_set_untracked(skb); - err = nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT, net, sk, skb, NULL, vrf_dev, vrf_ip_out_direct_finish); @@ -1021,6 +1019,8 @@ static struct sk_buff *vrf_ip_out(struct net_device *vrf_dev, ipv4_is_lbcast(ip_hdr(skb)->daddr)) return skb; + vrf_nf_set_untracked(skb); + if (qdisc_tx_is_default(vrf_dev) || IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) return vrf_ip_out_direct(vrf_dev, sk, skb); -- cgit From e6f60c51f0435862020bcd2d1e3257caaafe5650 Mon Sep 17 00:00:00 2001 From: Ameer Hamza Date: Sun, 5 Dec 2021 23:38:10 +0500 Subject: gve: fix for null pointer dereference. Avoid passing NULL skb to __skb_put() function call if napi_alloc_skb() returns NULL. Fixes: 37149e9374bf ("gve: Implement packet continuation for RX.") Signed-off-by: Ameer Hamza Link: https://lore.kernel.org/r/20211205183810.8299-1-amhamza.mgc@gmail.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/google/gve/gve_utils.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/google/gve/gve_utils.c b/drivers/net/ethernet/google/gve/gve_utils.c index 88ca49cbc1e2..d57508bc4307 100644 --- a/drivers/net/ethernet/google/gve/gve_utils.c +++ b/drivers/net/ethernet/google/gve/gve_utils.c @@ -68,6 +68,9 @@ struct sk_buff *gve_rx_copy(struct net_device *dev, struct napi_struct *napi, set_protocol = ctx->curr_frag_cnt == ctx->expected_frag_cnt - 1; } else { skb = napi_alloc_skb(napi, len); + + if (unlikely(!skb)) + return NULL; set_protocol = true; } __skb_put(skb, len); -- cgit From c35e8de704560846dab964a2df2e548818a424d3 Mon Sep 17 00:00:00 2001 From: Yanteng Si Date: Mon, 6 Dec 2021 16:12:28 +0800 Subject: net: phy: Add the missing blank line in the phylink_suspend comment Fix warning as: Documentation/networking/kapi:147: ./drivers/net/phy/phylink.c:1657: WARNING: Unexpected indentation. Documentation/networking/kapi:147: ./drivers/net/phy/phylink.c:1658: WARNING: Block quote ends without a blank line; unexpected unindent. Signed-off-by: Yanteng Si Signed-off-by: Jakub Kicinski --- drivers/net/phy/phylink.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net') diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 5904546acae6..ea82ea5660e7 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -1388,6 +1388,7 @@ EXPORT_SYMBOL_GPL(phylink_stop); * @mac_wol: true if the MAC needs to receive packets for Wake-on-Lan * * Handle a network device suspend event. There are several cases: + * * - If Wake-on-Lan is not active, we can bring down the link between * the MAC and PHY by calling phylink_stop(). * - If Wake-on-Lan is active, and being handled only by the PHY, we -- cgit From b5bd95d17102b6719e3531d627875b9690371383 Mon Sep 17 00:00:00 2001 From: Joakim Zhang Date: Mon, 6 Dec 2021 21:54:57 +0800 Subject: net: fec: only clear interrupt of handling queue in fec_enet_rx_queue() Background: We have a customer is running a Profinet stack on the 8MM which receives and responds PNIO packets every 4ms and PNIO-CM packets every 40ms. However, from time to time the received PNIO-CM package is "stock" and is only handled when receiving a new PNIO-CM or DCERPC-Ping packet (tcpdump shows the PNIO-CM and the DCERPC-Ping packet at the same time but the PNIO-CM HW timestamp is from the expected 40 ms and not the 2s delay of the DCERPC-Ping). After debugging, we noticed PNIO, PNIO-CM and DCERPC-Ping packets would be handled by different RX queues. The root cause should be driver ack all queues' interrupt when handle a specific queue in fec_enet_rx_queue(). The blamed patch is introduced to receive as much packets as possible once to avoid interrupt flooding. But it's unreasonable to clear other queues'interrupt when handling one queue, this patch tries to fix it. Fixes: ed63f1dcd578 (net: fec: clear receive interrupts before processing a packet) Cc: Russell King Reported-by: Nicolas Diaz Signed-off-by: Joakim Zhang Link: https://lore.kernel.org/r/20211206135457.15946-1-qiangqing.zhang@nxp.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/freescale/fec.h | 3 +++ drivers/net/ethernet/freescale/fec_main.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index 7b4961daa254..ed7301b69169 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -377,6 +377,9 @@ struct bufdesc_ex { #define FEC_ENET_WAKEUP ((uint)0x00020000) /* Wakeup request */ #define FEC_ENET_TXF (FEC_ENET_TXF_0 | FEC_ENET_TXF_1 | FEC_ENET_TXF_2) #define FEC_ENET_RXF (FEC_ENET_RXF_0 | FEC_ENET_RXF_1 | FEC_ENET_RXF_2) +#define FEC_ENET_RXF_GET(X) (((X) == 0) ? FEC_ENET_RXF_0 : \ + (((X) == 1) ? FEC_ENET_RXF_1 : \ + FEC_ENET_RXF_2)) #define FEC_ENET_TS_AVAIL ((uint)0x00010000) #define FEC_ENET_TS_TIMER ((uint)0x00008000) diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index bc418b910999..1b1f7f2a6130 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1480,7 +1480,7 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id) break; pkt_received++; - writel(FEC_ENET_RXF, fep->hwp + FEC_IEVENT); + writel(FEC_ENET_RXF_GET(queue_id), fep->hwp + FEC_IEVENT); /* Check for errors. */ status ^= BD_ENET_RX_LAST; -- cgit From 1a0f25a52e08b1f67510cabbb44888d2b3c46359 Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Fri, 12 Nov 2021 17:06:02 -0800 Subject: ice: safer stats processing The driver was zeroing live stats that could be fetched by ndo_get_stats64 at any time. This could result in inconsistent statistics, and the telltale sign was when reading stats frequently from /proc/net/dev, the stats would go backwards. Fix by collecting stats into a local, and delaying when we write to the structure so it's not incremental. Fixes: fcea6f3da546 ("ice: Add stats and ethtool support") Signed-off-by: Jesse Brandeburg Tested-by: Gurucharan G Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_main.c | 29 ++++++++++++++++++----------- 1 file changed, 18 insertions(+), 11 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index c6d6ce52e2ca..73c61cdb036f 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -5930,14 +5930,15 @@ ice_fetch_u64_stats_per_ring(struct u64_stats_sync *syncp, struct ice_q_stats st /** * ice_update_vsi_tx_ring_stats - Update VSI Tx ring stats counters * @vsi: the VSI to be updated + * @vsi_stats: the stats struct to be updated * @rings: rings to work on * @count: number of rings */ static void -ice_update_vsi_tx_ring_stats(struct ice_vsi *vsi, struct ice_tx_ring **rings, - u16 count) +ice_update_vsi_tx_ring_stats(struct ice_vsi *vsi, + struct rtnl_link_stats64 *vsi_stats, + struct ice_tx_ring **rings, u16 count) { - struct rtnl_link_stats64 *vsi_stats = &vsi->net_stats; u16 i; for (i = 0; i < count; i++) { @@ -5961,15 +5962,13 @@ ice_update_vsi_tx_ring_stats(struct ice_vsi *vsi, struct ice_tx_ring **rings, */ static void ice_update_vsi_ring_stats(struct ice_vsi *vsi) { - struct rtnl_link_stats64 *vsi_stats = &vsi->net_stats; + struct rtnl_link_stats64 *vsi_stats; u64 pkts, bytes; int i; - /* reset netdev stats */ - vsi_stats->tx_packets = 0; - vsi_stats->tx_bytes = 0; - vsi_stats->rx_packets = 0; - vsi_stats->rx_bytes = 0; + vsi_stats = kzalloc(sizeof(*vsi_stats), GFP_ATOMIC); + if (!vsi_stats) + return; /* reset non-netdev (extended) stats */ vsi->tx_restart = 0; @@ -5981,7 +5980,8 @@ static void ice_update_vsi_ring_stats(struct ice_vsi *vsi) rcu_read_lock(); /* update Tx rings counters */ - ice_update_vsi_tx_ring_stats(vsi, vsi->tx_rings, vsi->num_txq); + ice_update_vsi_tx_ring_stats(vsi, vsi_stats, vsi->tx_rings, + vsi->num_txq); /* update Rx rings counters */ ice_for_each_rxq(vsi, i) { @@ -5996,10 +5996,17 @@ static void ice_update_vsi_ring_stats(struct ice_vsi *vsi) /* update XDP Tx rings counters */ if (ice_is_xdp_ena_vsi(vsi)) - ice_update_vsi_tx_ring_stats(vsi, vsi->xdp_rings, + ice_update_vsi_tx_ring_stats(vsi, vsi_stats, vsi->xdp_rings, vsi->num_xdp_txq); rcu_read_unlock(); + + vsi->net_stats.tx_packets = vsi_stats->tx_packets; + vsi->net_stats.tx_bytes = vsi_stats->tx_bytes; + vsi->net_stats.rx_packets = vsi_stats->rx_packets; + vsi->net_stats.rx_bytes = vsi_stats->rx_bytes; + + kfree(vsi_stats); } /** -- cgit From 2b29cb9e3f7f038c7f50ad2583b47caf5cb1eaf2 Mon Sep 17 00:00:00 2001 From: "Russell King (Oracle)" Date: Tue, 7 Dec 2021 10:32:43 +0000 Subject: net: dsa: mv88e6xxx: fix "don't use PHY_DETECT on internal PHY's" This commit fixes a misunderstanding in commit 4a3e0aeddf09 ("net: dsa: mv88e6xxx: don't use PHY_DETECT on internal PHY's"). For Marvell DSA switches with the PHY_DETECT bit (for non-6250 family devices), controls whether the PPU polls the PHY to retrieve the link, speed, duplex and pause status to update the port configuration. This applies for both internal and external PHYs. For some switches such as 88E6352 and 88E6390X, PHY_DETECT has an additional function of enabling auto-media mode between the internal PHY and SERDES blocks depending on which first gains link. The original intention of commit 5d5b231da7ac (net: dsa: mv88e6xxx: use PHY_DETECT in mac_link_up/mac_link_down) was to allow this bit to be used to detect when this propagation is enabled, and allow software to update the port configuration. This has found to be necessary for some switches which do not automatically propagate status from the SERDES to the port, which includes the 88E6390. However, commit 4a3e0aeddf09 ("net: dsa: mv88e6xxx: don't use PHY_DETECT on internal PHY's") breaks this assumption. Maarten Zanders has confirmed that the issue he was addressing was for an 88E6250 switch, which does not have a PHY_DETECT bit in bit 12, but instead a link status bit. Therefore, mv88e6xxx_port_ppu_updates() does not report correctly. This patch resolves the above issues by reverting Maarten's change and instead making mv88e6xxx_port_ppu_updates() indicate whether the port is internal for the 88E6250 family of switches. Yes, you're right, I'm targeting the 6250 family. And yes, your suggestion would solve my case and is a better implementation for the other devices (as far as I can see). Fixes: 4a3e0aeddf09 ("net: dsa: mv88e6xxx: don't use PHY_DETECT on internal PHY's") Signed-off-by: Russell King Tested-by: Maarten Zanders Link: https://lore.kernel.org/r/E1muXm7-00EwJB-7n@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski --- drivers/net/dsa/mv88e6xxx/chip.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index f00cbf5753b9..9f675464efc3 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -471,6 +471,12 @@ static int mv88e6xxx_port_ppu_updates(struct mv88e6xxx_chip *chip, int port) u16 reg; int err; + /* The 88e6250 family does not have the PHY detect bit. Instead, + * report whether the port is internal. + */ + if (chip->info->family == MV88E6XXX_FAMILY_6250) + return port < chip->info->num_internal_phys; + err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®); if (err) { dev_err(chip->dev, @@ -752,11 +758,10 @@ static void mv88e6xxx_mac_link_down(struct dsa_switch *ds, int port, ops = chip->info->ops; mv88e6xxx_reg_lock(chip); - /* Internal PHYs propagate their configuration directly to the MAC. - * External PHYs depend on whether the PPU is enabled for this port. + /* Force the link down if we know the port may not be automatically + * updated by the switch or if we are using fixed-link mode. */ - if (((!mv88e6xxx_phy_is_internal(ds, port) && - !mv88e6xxx_port_ppu_updates(chip, port)) || + if ((!mv88e6xxx_port_ppu_updates(chip, port) || mode == MLO_AN_FIXED) && ops->port_sync_link) err = ops->port_sync_link(chip, port, mode, false); mv88e6xxx_reg_unlock(chip); @@ -779,11 +784,11 @@ static void mv88e6xxx_mac_link_up(struct dsa_switch *ds, int port, ops = chip->info->ops; mv88e6xxx_reg_lock(chip); - /* Internal PHYs propagate their configuration directly to the MAC. - * External PHYs depend on whether the PPU is enabled for this port. + /* Configure and force the link up if we know that the port may not + * automatically updated by the switch or if we are using fixed-link + * mode. */ - if ((!mv88e6xxx_phy_is_internal(ds, port) && - !mv88e6xxx_port_ppu_updates(chip, port)) || + if (!mv88e6xxx_port_ppu_updates(chip, port) || mode == MLO_AN_FIXED) { /* FIXME: for an automedia port, should we force the link * down here - what if the link comes up due to "other" media -- cgit From f71ef02f1a4a3c49962fa341ad8de19071f0f9bf Mon Sep 17 00:00:00 2001 From: Ronak Doshi Date: Tue, 7 Dec 2021 00:17:37 -0800 Subject: vmxnet3: fix minimum vectors alloc issue 'Commit 39f9895a00f4 ("vmxnet3: add support for 32 Tx/Rx queues")' added support for 32Tx/Rx queues. Within that patch, value of VMXNET3_LINUX_MIN_MSIX_VECT was updated. However, there is a case (numvcpus = 2) which actually requires 3 intrs which matches VMXNET3_LINUX_MIN_MSIX_VECT which then is treated as failure by stack to allocate more vectors. This patch fixes this issue. Fixes: 39f9895a00f4 ("vmxnet3: add support for 32 Tx/Rx queues") Signed-off-by: Ronak Doshi Acked-by: Guolin Yang Link: https://lore.kernel.org/r/20211207081737.14000-1-doshir@vmware.com Signed-off-by: Jakub Kicinski --- drivers/net/vmxnet3/vmxnet3_drv.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 14fae317bc70..fd407c0e2856 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -3261,7 +3261,7 @@ vmxnet3_alloc_intr_resources(struct vmxnet3_adapter *adapter) #ifdef CONFIG_PCI_MSI if (adapter->intr.type == VMXNET3_IT_MSIX) { - int i, nvec; + int i, nvec, nvec_allocated; nvec = adapter->share_intr == VMXNET3_INTR_TXSHARE ? 1 : adapter->num_tx_queues; @@ -3274,14 +3274,15 @@ vmxnet3_alloc_intr_resources(struct vmxnet3_adapter *adapter) for (i = 0; i < nvec; i++) adapter->intr.msix_entries[i].entry = i; - nvec = vmxnet3_acquire_msix_vectors(adapter, nvec); - if (nvec < 0) + nvec_allocated = vmxnet3_acquire_msix_vectors(adapter, nvec); + if (nvec_allocated < 0) goto msix_err; /* If we cannot allocate one MSIx vector per queue * then limit the number of rx queues to 1 */ - if (nvec == VMXNET3_LINUX_MIN_MSIX_VECT) { + if (nvec_allocated == VMXNET3_LINUX_MIN_MSIX_VECT && + nvec != VMXNET3_LINUX_MIN_MSIX_VECT) { if (adapter->share_intr != VMXNET3_INTR_BUDDYSHARE || adapter->num_rx_queues != 1) { adapter->share_intr = VMXNET3_INTR_TXSHARE; @@ -3291,14 +3292,14 @@ vmxnet3_alloc_intr_resources(struct vmxnet3_adapter *adapter) } } - adapter->intr.num_intrs = nvec; + adapter->intr.num_intrs = nvec_allocated; return; msix_err: /* If we cannot allocate MSIx vectors use only one rx queue */ dev_info(&adapter->pdev->dev, "Failed to enable MSI-X, error %d. " - "Limiting #rx queues to 1, try MSI.\n", nvec); + "Limiting #rx queues to 1, try MSI.\n", nvec_allocated); adapter->intr.type = VMXNET3_IT_MSI; } -- cgit From a50e659b2a1be14784e80f8492aab177e67c53a2 Mon Sep 17 00:00:00 2001 From: Louis Amas Date: Tue, 7 Dec 2021 15:34:22 +0100 Subject: net: mvpp2: fix XDP rx queues registering The registration of XDP queue information is incorrect because the RX queue id we use is invalid. When port->id == 0 it appears to works as expected yet it's no longer the case when port->id != 0. The problem arised while using a recent kernel version on the MACCHIATOBin. This board has several ports: * eth0 and eth1 are 10Gbps interfaces ; both ports has port->id == 0; * eth2 is a 1Gbps interface with port->id != 0. Code from xdp-tutorial (more specifically advanced03-AF_XDP) was used to test packet capture and injection on all these interfaces. The XDP kernel was simplified to: SEC("xdp_sock") int xdp_sock_prog(struct xdp_md *ctx) { int index = ctx->rx_queue_index; /* A set entry here means that the correspnding queue_id * has an active AF_XDP socket bound to it. */ if (bpf_map_lookup_elem(&xsks_map, &index)) return bpf_redirect_map(&xsks_map, index, 0); return XDP_PASS; } Starting the program using: ./af_xdp_user -d DEV Gives the following result: * eth0 : ok * eth1 : ok * eth2 : no capture, no injection Investigating the issue shows that XDP rx queues for eth2 are wrong: XDP expects their id to be in the range [0..3] but we found them to be in the range [32..35]. Trying to force rx queue ids using: ./af_xdp_user -d eth2 -Q 32 fails as expected (we shall not have more than 4 queues). When we register the XDP rx queue information (using xdp_rxq_info_reg() in function mvpp2_rxq_init()) we tell it to use rxq->id as the queue id. This value is computed as: rxq->id = port->id * max_rxq_count + queue_id where max_rxq_count depends on the device version. In the MACCHIATOBin case, this value is 32, meaning that rx queues on eth2 are numbered from 32 to 35 - there are four of them. Clearly, this is not the per-port queue id that XDP is expecting: it wants a value in the range [0..3]. It shall directly use queue_id which is stored in rxq->logic_rxq -- so let's use that value instead. rxq->id is left untouched ; its value is indeed valid but it should not be used in this context. This is consistent with the remaining part of the code in mvpp2_rxq_init(). With this change, packet capture is working as expected on all the MACCHIATOBin ports. Fixes: b27db2274ba8 ("mvpp2: use page_pool allocator") Signed-off-by: Louis Amas Signed-off-by: Emmanuel Deloget Reviewed-by: Marcin Wojtas Acked-by: John Fastabend Acked-by: Jesper Dangaard Brouer Link: https://lore.kernel.org/r/20211207143423.916334-1-louis.amas@eho.link Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index 6480696c979b..6da8a595026b 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -2960,11 +2960,11 @@ static int mvpp2_rxq_init(struct mvpp2_port *port, mvpp2_rxq_status_update(port, rxq->id, 0, rxq->size); if (priv->percpu_pools) { - err = xdp_rxq_info_reg(&rxq->xdp_rxq_short, port->dev, rxq->id, 0); + err = xdp_rxq_info_reg(&rxq->xdp_rxq_short, port->dev, rxq->logic_rxq, 0); if (err < 0) goto err_free_dma; - err = xdp_rxq_info_reg(&rxq->xdp_rxq_long, port->dev, rxq->id, 0); + err = xdp_rxq_info_reg(&rxq->xdp_rxq_long, port->dev, rxq->logic_rxq, 0); if (err < 0) goto err_unregister_rxq_short; -- cgit From 36aea60fc892ce73f96d45dc7eb239c7c4c1fa69 Mon Sep 17 00:00:00 2001 From: Jimmy Assarsson Date: Wed, 8 Dec 2021 16:21:21 +0100 Subject: can: kvaser_pciefd: kvaser_pciefd_rx_error_frame(): increase correct stats->{rx,tx}_errors counter Check the direction bit in the error frame packet (EPACK) to determine which net_device_stats {rx,tx}_errors counter to increase. Fixes: 26ad340e582d ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices") Link: https://lore.kernel.org/all/20211208152122.250852-1-extja@kvaser.com Cc: stable@vger.kernel.org Signed-off-by: Jimmy Assarsson Signed-off-by: Marc Kleine-Budde --- drivers/net/can/kvaser_pciefd.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index 74d9899fc904..eb74cdf26b88 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -248,6 +248,9 @@ MODULE_DESCRIPTION("CAN driver for Kvaser CAN/PCIe devices"); #define KVASER_PCIEFD_SPACK_EWLR BIT(23) #define KVASER_PCIEFD_SPACK_EPLR BIT(24) +/* Kvaser KCAN_EPACK second word */ +#define KVASER_PCIEFD_EPACK_DIR_TX BIT(0) + struct kvaser_pciefd; struct kvaser_pciefd_can { @@ -1285,7 +1288,10 @@ static int kvaser_pciefd_rx_error_frame(struct kvaser_pciefd_can *can, can->err_rep_cnt++; can->can.can_stats.bus_error++; - stats->rx_errors++; + if (p->header[1] & KVASER_PCIEFD_EPACK_DIR_TX) + stats->tx_errors++; + else + stats->rx_errors++; can->bec.txerr = bec.txerr; can->bec.rxerr = bec.rxerr; -- cgit From fb12797ab1fef480ad8a32a30984844444eeb00d Mon Sep 17 00:00:00 2001 From: Jimmy Assarsson Date: Wed, 8 Dec 2021 16:21:22 +0100 Subject: can: kvaser_usb: get CAN clock frequency from device The CAN clock frequency is used when calculating the CAN bittiming parameters. When wrong clock frequency is used, the device may end up with wrong bittiming parameters, depending on user requested bittiming parameters. To avoid this, get the CAN clock frequency from the device. Various existing Kvaser Leaf products use different CAN clocks. Fixes: 080f40a6fa28 ("can: kvaser_usb: Add support for Kvaser CAN/USB devices") Link: https://lore.kernel.org/all/20211208152122.250852-2-extja@kvaser.com Cc: stable@vger.kernel.org Signed-off-by: Jimmy Assarsson Signed-off-by: Marc Kleine-Budde --- drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 101 ++++++++++++++++------- 1 file changed, 73 insertions(+), 28 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c index 59ba7c7beec0..f7af1bf5ab46 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -28,10 +28,6 @@ #include "kvaser_usb.h" -/* Forward declaration */ -static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg; - -#define CAN_USB_CLOCK 8000000 #define MAX_USBCAN_NET_DEVICES 2 /* Command header size */ @@ -80,6 +76,12 @@ static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg; #define CMD_LEAF_LOG_MESSAGE 106 +/* Leaf frequency options */ +#define KVASER_USB_LEAF_SWOPTION_FREQ_MASK 0x60 +#define KVASER_USB_LEAF_SWOPTION_FREQ_16_MHZ_CLK 0 +#define KVASER_USB_LEAF_SWOPTION_FREQ_32_MHZ_CLK BIT(5) +#define KVASER_USB_LEAF_SWOPTION_FREQ_24_MHZ_CLK BIT(6) + /* error factors */ #define M16C_EF_ACKE BIT(0) #define M16C_EF_CRCE BIT(1) @@ -340,6 +342,50 @@ struct kvaser_usb_err_summary { }; }; +static const struct can_bittiming_const kvaser_usb_leaf_bittiming_const = { + .name = "kvaser_usb", + .tseg1_min = KVASER_USB_TSEG1_MIN, + .tseg1_max = KVASER_USB_TSEG1_MAX, + .tseg2_min = KVASER_USB_TSEG2_MIN, + .tseg2_max = KVASER_USB_TSEG2_MAX, + .sjw_max = KVASER_USB_SJW_MAX, + .brp_min = KVASER_USB_BRP_MIN, + .brp_max = KVASER_USB_BRP_MAX, + .brp_inc = KVASER_USB_BRP_INC, +}; + +static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_8mhz = { + .clock = { + .freq = 8000000, + }, + .timestamp_freq = 1, + .bittiming_const = &kvaser_usb_leaf_bittiming_const, +}; + +static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_16mhz = { + .clock = { + .freq = 16000000, + }, + .timestamp_freq = 1, + .bittiming_const = &kvaser_usb_leaf_bittiming_const, +}; + +static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_24mhz = { + .clock = { + .freq = 24000000, + }, + .timestamp_freq = 1, + .bittiming_const = &kvaser_usb_leaf_bittiming_const, +}; + +static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_32mhz = { + .clock = { + .freq = 32000000, + }, + .timestamp_freq = 1, + .bittiming_const = &kvaser_usb_leaf_bittiming_const, +}; + static void * kvaser_usb_leaf_frame_to_cmd(const struct kvaser_usb_net_priv *priv, const struct sk_buff *skb, int *frame_len, @@ -471,6 +517,27 @@ static int kvaser_usb_leaf_send_simple_cmd(const struct kvaser_usb *dev, return rc; } +static void kvaser_usb_leaf_get_software_info_leaf(struct kvaser_usb *dev, + const struct leaf_cmd_softinfo *softinfo) +{ + u32 sw_options = le32_to_cpu(softinfo->sw_options); + + dev->fw_version = le32_to_cpu(softinfo->fw_version); + dev->max_tx_urbs = le16_to_cpu(softinfo->max_outstanding_tx); + + switch (sw_options & KVASER_USB_LEAF_SWOPTION_FREQ_MASK) { + case KVASER_USB_LEAF_SWOPTION_FREQ_16_MHZ_CLK: + dev->cfg = &kvaser_usb_leaf_dev_cfg_16mhz; + break; + case KVASER_USB_LEAF_SWOPTION_FREQ_24_MHZ_CLK: + dev->cfg = &kvaser_usb_leaf_dev_cfg_24mhz; + break; + case KVASER_USB_LEAF_SWOPTION_FREQ_32_MHZ_CLK: + dev->cfg = &kvaser_usb_leaf_dev_cfg_32mhz; + break; + } +} + static int kvaser_usb_leaf_get_software_info_inner(struct kvaser_usb *dev) { struct kvaser_cmd cmd; @@ -486,14 +553,13 @@ static int kvaser_usb_leaf_get_software_info_inner(struct kvaser_usb *dev) switch (dev->card_data.leaf.family) { case KVASER_LEAF: - dev->fw_version = le32_to_cpu(cmd.u.leaf.softinfo.fw_version); - dev->max_tx_urbs = - le16_to_cpu(cmd.u.leaf.softinfo.max_outstanding_tx); + kvaser_usb_leaf_get_software_info_leaf(dev, &cmd.u.leaf.softinfo); break; case KVASER_USBCAN: dev->fw_version = le32_to_cpu(cmd.u.usbcan.softinfo.fw_version); dev->max_tx_urbs = le16_to_cpu(cmd.u.usbcan.softinfo.max_outstanding_tx); + dev->cfg = &kvaser_usb_leaf_dev_cfg_8mhz; break; } @@ -1225,24 +1291,11 @@ static int kvaser_usb_leaf_init_card(struct kvaser_usb *dev) { struct kvaser_usb_dev_card_data *card_data = &dev->card_data; - dev->cfg = &kvaser_usb_leaf_dev_cfg; card_data->ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES; return 0; } -static const struct can_bittiming_const kvaser_usb_leaf_bittiming_const = { - .name = "kvaser_usb", - .tseg1_min = KVASER_USB_TSEG1_MIN, - .tseg1_max = KVASER_USB_TSEG1_MAX, - .tseg2_min = KVASER_USB_TSEG2_MIN, - .tseg2_max = KVASER_USB_TSEG2_MAX, - .sjw_max = KVASER_USB_SJW_MAX, - .brp_min = KVASER_USB_BRP_MIN, - .brp_max = KVASER_USB_BRP_MAX, - .brp_inc = KVASER_USB_BRP_INC, -}; - static int kvaser_usb_leaf_set_bittiming(struct net_device *netdev) { struct kvaser_usb_net_priv *priv = netdev_priv(netdev); @@ -1348,11 +1401,3 @@ const struct kvaser_usb_dev_ops kvaser_usb_leaf_dev_ops = { .dev_read_bulk_callback = kvaser_usb_leaf_read_bulk_callback, .dev_frame_to_cmd = kvaser_usb_leaf_frame_to_cmd, }; - -static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg = { - .clock = { - .freq = CAN_USB_CLOCK, - }, - .timestamp_freq = 1, - .bittiming_const = &kvaser_usb_leaf_bittiming_const, -}; -- cgit From 0416e7af2369b0d12a28dea8d30b104df9a6953d Mon Sep 17 00:00:00 2001 From: Ameer Hamza Date: Thu, 9 Dec 2021 09:15:52 +0500 Subject: net: dsa: mv88e6xxx: error handling for serdes_power functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Added default case to handle undefined cmode scenario in mv88e6393x_serdes_power() and mv88e6393x_serdes_power() methods. Addresses-Coverity: 1494644 ("Uninitialized scalar variable") Fixes: 21635d9203e1c (net: dsa: mv88e6xxx: Fix application of erratum 4.8 for 88E6393X) Reviewed-by: Marek Behún Signed-off-by: Ameer Hamza Link: https://lore.kernel.org/r/20211209041552.9810-1-amhamza.mgc@gmail.com Signed-off-by: Jakub Kicinski --- drivers/net/dsa/mv88e6xxx/serdes.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c index 55273013bfb5..2b05ead515cd 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.c +++ b/drivers/net/dsa/mv88e6xxx/serdes.c @@ -830,7 +830,7 @@ int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, int lane, bool up) { u8 cmode = chip->ports[port].cmode; - int err = 0; + int err; switch (cmode) { case MV88E6XXX_PORT_STS_CMODE_SGMII: @@ -842,6 +842,9 @@ int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, int lane, case MV88E6XXX_PORT_STS_CMODE_RXAUI: err = mv88e6390_serdes_power_10g(chip, lane, up); break; + default: + err = -EINVAL; + break; } if (!err && up) @@ -1541,6 +1544,9 @@ int mv88e6393x_serdes_power(struct mv88e6xxx_chip *chip, int port, int lane, case MV88E6393X_PORT_STS_CMODE_10GBASER: err = mv88e6390_serdes_power_10g(chip, lane, on); break; + default: + err = -EINVAL; + break; } if (err) -- cgit From c56c96303e9289cc34716b1179597b6f470833de Mon Sep 17 00:00:00 2001 From: Jianglei Nie Date: Thu, 9 Dec 2021 14:15:11 +0800 Subject: nfp: Fix memory leak in nfp_cpp_area_cache_add() In line 800 (#1), nfp_cpp_area_alloc() allocates and initializes a CPP area structure. But in line 807 (#2), when the cache is allocated failed, this CPP area structure is not freed, which will result in memory leak. We can fix it by freeing the CPP area when the cache is allocated failed (#2). 792 int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size) 793 { 794 struct nfp_cpp_area_cache *cache; 795 struct nfp_cpp_area *area; 800 area = nfp_cpp_area_alloc(cpp, NFP_CPP_ID(7, NFP_CPP_ACTION_RW, 0), 801 0, size); // #1: allocates and initializes 802 if (!area) 803 return -ENOMEM; 805 cache = kzalloc(sizeof(*cache), GFP_KERNEL); 806 if (!cache) 807 return -ENOMEM; // #2: missing free 817 return 0; 818 } Fixes: 4cb584e0ee7d ("nfp: add CPP access core") Signed-off-by: Jianglei Nie Acked-by: Simon Horman Link: https://lore.kernel.org/r/20211209061511.122535-1-niejianglei2021@163.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c index d7ac0307797f..34c0d2ddf9ef 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c @@ -803,8 +803,10 @@ int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size) return -ENOMEM; cache = kzalloc(sizeof(*cache), GFP_KERNEL); - if (!cache) + if (!cache) { + nfp_cpp_area_free(area); return -ENOMEM; + } cache->id = 0; cache->addr = 0; -- cgit From 9acfc57fa2b8944ed079cedbf846823ea32b8a31 Mon Sep 17 00:00:00 2001 From: José Expósito Date: Wed, 8 Dec 2021 23:37:23 +0100 Subject: net: mana: Fix memory leak in mana_hwc_create_wq MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If allocating the DMA buffer fails, mana_hwc_destroy_wq was called without previously storing the pointer to the queue. In order to avoid leaking the pointer to the queue, store it as soon as it is allocated. Addresses-Coverity-ID: 1484720 ("Resource leak") Signed-off-by: José Expósito Reviewed-by: Dexuan Cui Link: https://lore.kernel.org/r/20211208223723.18520-1-jose.exposito89@gmail.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/microsoft/mana/hw_channel.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c index 34b971ff8ef8..078d6a5a0768 100644 --- a/drivers/net/ethernet/microsoft/mana/hw_channel.c +++ b/drivers/net/ethernet/microsoft/mana/hw_channel.c @@ -480,16 +480,16 @@ static int mana_hwc_create_wq(struct hw_channel_context *hwc, if (err) goto out; - err = mana_hwc_alloc_dma_buf(hwc, q_depth, max_msg_size, - &hwc_wq->msg_buf); - if (err) - goto out; - hwc_wq->hwc = hwc; hwc_wq->gdma_wq = queue; hwc_wq->queue_depth = q_depth; hwc_wq->hwc_cq = hwc_cq; + err = mana_hwc_alloc_dma_buf(hwc, q_depth, max_msg_size, + &hwc_wq->msg_buf); + if (err) + goto out; + *hwc_wq_ptr = hwc_wq; return 0; out: -- cgit From e8b1d7698038e76363859fb47ae0a262080646f5 Mon Sep 17 00:00:00 2001 From: José Expósito Date: Thu, 9 Dec 2021 12:05:40 +0100 Subject: net: dsa: felix: Fix memory leak in felix_setup_mmio_filtering MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Avoid a memory leak if there is not a CPU port defined. Fixes: 8d5f7954b7c8 ("net: dsa: felix: break at first CPU port during init and teardown") Addresses-Coverity-ID: 1492897 ("Resource leak") Addresses-Coverity-ID: 1492899 ("Resource leak") Signed-off-by: José Expósito Reviewed-by: Vladimir Oltean Link: https://lore.kernel.org/r/20211209110538.11585-1-jose.exposito89@gmail.com Signed-off-by: Jakub Kicinski --- drivers/net/dsa/ocelot/felix.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index 327cc4654806..f1a05e7dc818 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -290,8 +290,11 @@ static int felix_setup_mmio_filtering(struct felix *felix) } } - if (cpu < 0) + if (cpu < 0) { + kfree(tagging_rule); + kfree(redirect_rule); return -EINVAL; + } tagging_rule->key_type = OCELOT_VCAP_KEY_ETYPE; *(__be16 *)tagging_rule->key.etype.etype.value = htons(ETH_P_1588); -- cgit From 373f121a3c3a741f90b2a81f120f37c539fa0c86 Mon Sep 17 00:00:00 2001 From: M Chetan Kumar Date: Thu, 9 Dec 2021 15:46:27 +0530 Subject: net: wwan: iosm: fixes unnecessary doorbell send In TX packet accumulation flow transport layer is giving a doorbell to device even though there is no pending control TX transfer that needs immediate attention. Introduced a new hpda_ctrl_pending variable to keep track of pending control TX transfer. If there is a pending control TX transfer which needs an immediate attention only then give a doorbell to device. Signed-off-by: M Chetan Kumar Reviewed-by: Sergey Ryazanov Signed-off-by: Jakub Kicinski --- drivers/net/wwan/iosm/iosm_ipc_imem.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem.c b/drivers/net/wwan/iosm/iosm_ipc_imem.c index cff3b43ca4d7..b4d47b31ba91 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_imem.c +++ b/drivers/net/wwan/iosm/iosm_ipc_imem.c @@ -181,9 +181,9 @@ void ipc_imem_hrtimer_stop(struct hrtimer *hr_timer) bool ipc_imem_ul_write_td(struct iosm_imem *ipc_imem) { struct ipc_mem_channel *channel; + bool hpda_ctrl_pending = false; struct sk_buff_head *ul_list; bool hpda_pending = false; - bool forced_hpdu = false; struct ipc_pipe *pipe; int i; @@ -200,15 +200,19 @@ bool ipc_imem_ul_write_td(struct iosm_imem *ipc_imem) ul_list = &channel->ul_list; /* Fill the transfer descriptor with the uplink buffer info. */ - hpda_pending |= ipc_protocol_ul_td_send(ipc_imem->ipc_protocol, + if (!ipc_imem_check_wwan_ips(channel)) { + hpda_ctrl_pending |= + ipc_protocol_ul_td_send(ipc_imem->ipc_protocol, pipe, ul_list); - - /* forced HP update needed for non data channels */ - if (hpda_pending && !ipc_imem_check_wwan_ips(channel)) - forced_hpdu = true; + } else { + hpda_pending |= + ipc_protocol_ul_td_send(ipc_imem->ipc_protocol, + pipe, ul_list); + } } - if (forced_hpdu) { + /* forced HP update needed for non data channels */ + if (hpda_ctrl_pending) { hpda_pending = false; ipc_protocol_doorbell_trigger(ipc_imem->ipc_protocol, IPC_HP_UL_WRITE_TD); -- cgit From 07d3f2743decaeefcf076457719ae01c8b43b6d2 Mon Sep 17 00:00:00 2001 From: M Chetan Kumar Date: Thu, 9 Dec 2021 15:46:28 +0530 Subject: net: wwan: iosm: fixes net interface nonfunctional after fw flash Devlink initialization flow was overwriting the IP traffic channel configuration. This was causing wwan0 network interface to be unusable after fw flash. When device boots to fully functional mode restore the IP channel configuration. Signed-off-by: M Chetan Kumar Reviewed-by: Sergey Ryazanov Signed-off-by: Jakub Kicinski --- drivers/net/wwan/iosm/iosm_ipc_imem.c | 7 ++++++- drivers/net/wwan/iosm/iosm_ipc_imem.h | 1 + drivers/net/wwan/iosm/iosm_ipc_imem_ops.c | 1 + 3 files changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem.c b/drivers/net/wwan/iosm/iosm_ipc_imem.c index b4d47b31ba91..e2c096863488 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_imem.c +++ b/drivers/net/wwan/iosm/iosm_ipc_imem.c @@ -531,6 +531,9 @@ static void ipc_imem_run_state_worker(struct work_struct *instance) return; } + if (test_and_clear_bit(IOSM_DEVLINK_INIT, &ipc_imem->flag)) + ipc_devlink_deinit(ipc_imem->ipc_devlink); + if (!ipc_imem_setup_cp_mux_cap_init(ipc_imem, &mux_cfg)) ipc_imem->mux = ipc_mux_init(&mux_cfg, ipc_imem); @@ -1171,7 +1174,7 @@ void ipc_imem_cleanup(struct iosm_imem *ipc_imem) ipc_port_deinit(ipc_imem->ipc_port); } - if (ipc_imem->ipc_devlink) + if (test_and_clear_bit(IOSM_DEVLINK_INIT, &ipc_imem->flag)) ipc_devlink_deinit(ipc_imem->ipc_devlink); ipc_imem_device_ipc_uninit(ipc_imem); @@ -1335,6 +1338,8 @@ struct iosm_imem *ipc_imem_init(struct iosm_pcie *pcie, unsigned int device_id, if (ipc_flash_link_establish(ipc_imem)) goto devlink_channel_fail; + + set_bit(IOSM_DEVLINK_INIT, &ipc_imem->flag); } return ipc_imem; devlink_channel_fail: diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem.h b/drivers/net/wwan/iosm/iosm_ipc_imem.h index 6be6708b4eec..6b479fe23a42 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_imem.h +++ b/drivers/net/wwan/iosm/iosm_ipc_imem.h @@ -101,6 +101,7 @@ struct ipc_chnl_cfg; #define IOSM_CHIP_INFO_SIZE_MAX 100 #define FULLY_FUNCTIONAL 0 +#define IOSM_DEVLINK_INIT 1 /* List of the supported UL/DL pipes. */ enum ipc_mem_pipes { diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c index 825e8e5ffb2a..09261fbb79c1 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c +++ b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c @@ -450,6 +450,7 @@ void ipc_imem_sys_devlink_close(struct iosm_devlink *ipc_devlink) /* Release the pipe resources */ ipc_imem_pipe_cleanup(ipc_imem, &channel->ul_pipe); ipc_imem_pipe_cleanup(ipc_imem, &channel->dl_pipe); + ipc_imem->nr_of_channels--; } void ipc_imem_sys_devlink_notify_rx(struct iosm_devlink *ipc_devlink, -- cgit From 383451ceb07831d37dafdf011c09366d1c034df5 Mon Sep 17 00:00:00 2001 From: M Chetan Kumar Date: Thu, 9 Dec 2021 15:46:29 +0530 Subject: net: wwan: iosm: fixes unable to send AT command during mbim tx ev_cdev_write_pending flag is preventing a TX message post for AT port while MBIM transfer is ongoing. Removed the unnecessary check around control port TX transfer. Signed-off-by: M Chetan Kumar Reviewed-by: Sergey Ryazanov Signed-off-by: Jakub Kicinski --- drivers/net/wwan/iosm/iosm_ipc_imem.c | 1 - drivers/net/wwan/iosm/iosm_ipc_imem.h | 3 --- drivers/net/wwan/iosm/iosm_ipc_imem_ops.c | 6 ------ 3 files changed, 10 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem.c b/drivers/net/wwan/iosm/iosm_ipc_imem.c index e2c096863488..12c03dacb5dd 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_imem.c +++ b/drivers/net/wwan/iosm/iosm_ipc_imem.c @@ -1270,7 +1270,6 @@ struct iosm_imem *ipc_imem_init(struct iosm_pcie *pcie, unsigned int device_id, ipc_imem->pci_device_id = device_id; - ipc_imem->ev_cdev_write_pending = false; ipc_imem->cp_version = 0; ipc_imem->device_sleep = IPC_HOST_SLEEP_ENTER_SLEEP; diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem.h b/drivers/net/wwan/iosm/iosm_ipc_imem.h index 6b479fe23a42..6b8a837faef2 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_imem.h +++ b/drivers/net/wwan/iosm/iosm_ipc_imem.h @@ -336,8 +336,6 @@ enum ipc_phase { * process the irq actions. * @flag: Flag to monitor the state of driver * @td_update_timer_suspended: if true then td update timer suspend - * @ev_cdev_write_pending: 0 means inform the IPC tasklet to pass - * the accumulated uplink buffers to CP. * @ev_mux_net_transmit_pending:0 means inform the IPC tasklet to pass * @reset_det_n: Reset detect flag * @pcie_wake_n: Pcie wake flag @@ -375,7 +373,6 @@ struct iosm_imem { u8 ev_irq_pending[IPC_IRQ_VECTORS]; unsigned long flag; u8 td_update_timer_suspended:1, - ev_cdev_write_pending:1, ev_mux_net_transmit_pending:1, reset_det_n:1, pcie_wake_n:1; diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c index 09261fbb79c1..831cdae28e8a 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c +++ b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c @@ -41,7 +41,6 @@ void ipc_imem_sys_wwan_close(struct iosm_imem *ipc_imem, int if_id, static int ipc_imem_tq_cdev_write(struct iosm_imem *ipc_imem, int arg, void *msg, size_t size) { - ipc_imem->ev_cdev_write_pending = false; ipc_imem_ul_send(ipc_imem); return 0; @@ -50,11 +49,6 @@ static int ipc_imem_tq_cdev_write(struct iosm_imem *ipc_imem, int arg, /* Through tasklet to do sio write. */ static int ipc_imem_call_cdev_write(struct iosm_imem *ipc_imem) { - if (ipc_imem->ev_cdev_write_pending) - return -1; - - ipc_imem->ev_cdev_write_pending = true; - return ipc_task_queue_send_task(ipc_imem, ipc_imem_tq_cdev_write, 0, NULL, 0, false); } -- cgit From 04ec4e6250e5f58b525b08f3dca45c7d7427620e Mon Sep 17 00:00:00 2001 From: "Russell King (Oracle)" Date: Thu, 9 Dec 2021 09:26:47 +0000 Subject: net: dsa: mv88e6xxx: allow use of PHYs on CPU and DSA ports Martyn Welch reports that his CPU port is unable to link where it has been necessary to use one of the switch ports with an internal PHY for the CPU port. The reason behind this is the port control register is left forcing the link down, preventing traffic flow. This occurs because during initialisation, phylink expects the link to be down, and DSA forces the link down by synthesising a call to the DSA drivers phylink_mac_link_down() method, but we don't touch the forced-link state when we later reconfigure the port. Resolve this by also unforcing the link state when we are operating in PHY mode and the PPU is set to poll the PHY to retrieve link status information. Reported-by: Martyn Welch Tested-by: Martyn Welch Fixes: 3be98b2d5fbc ("net: dsa: Down cpu/dsa ports phylink will control") Cc: # 5.7: 2b29cb9e3f7f: net: dsa: mv88e6xxx: fix "don't use PHY_DETECT on internal PHY's" Signed-off-by: Russell King (Oracle) Link: https://lore.kernel.org/r/E1mvFhP-00F8Zb-Ul@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski --- drivers/net/dsa/mv88e6xxx/chip.c | 64 +++++++++++++++++++++------------------- 1 file changed, 34 insertions(+), 30 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 9f675464efc3..14f87f6ac479 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -698,44 +698,48 @@ static void mv88e6xxx_mac_config(struct dsa_switch *ds, int port, { struct mv88e6xxx_chip *chip = ds->priv; struct mv88e6xxx_port *p; - int err; + int err = 0; p = &chip->ports[port]; - /* FIXME: is this the correct test? If we're in fixed mode on an - * internal port, why should we process this any different from - * PHY mode? On the other hand, the port may be automedia between - * an internal PHY and the serdes... - */ - if ((mode == MLO_AN_PHY) && mv88e6xxx_phy_is_internal(ds, port)) - return; - mv88e6xxx_reg_lock(chip); - /* In inband mode, the link may come up at any time while the link - * is not forced down. Force the link down while we reconfigure the - * interface mode. - */ - if (mode == MLO_AN_INBAND && p->interface != state->interface && - chip->info->ops->port_set_link) - chip->info->ops->port_set_link(chip, port, LINK_FORCED_DOWN); - - err = mv88e6xxx_port_config_interface(chip, port, state->interface); - if (err && err != -EOPNOTSUPP) - goto err_unlock; - err = mv88e6xxx_serdes_pcs_config(chip, port, mode, state->interface, - state->advertising); - /* FIXME: we should restart negotiation if something changed - which - * is something we get if we convert to using phylinks PCS operations. - */ - if (err > 0) - err = 0; + if (mode != MLO_AN_PHY || !mv88e6xxx_phy_is_internal(ds, port)) { + /* In inband mode, the link may come up at any time while the + * link is not forced down. Force the link down while we + * reconfigure the interface mode. + */ + if (mode == MLO_AN_INBAND && + p->interface != state->interface && + chip->info->ops->port_set_link) + chip->info->ops->port_set_link(chip, port, + LINK_FORCED_DOWN); + + err = mv88e6xxx_port_config_interface(chip, port, + state->interface); + if (err && err != -EOPNOTSUPP) + goto err_unlock; + + err = mv88e6xxx_serdes_pcs_config(chip, port, mode, + state->interface, + state->advertising); + /* FIXME: we should restart negotiation if something changed - + * which is something we get if we convert to using phylinks + * PCS operations. + */ + if (err > 0) + err = 0; + } /* Undo the forced down state above after completing configuration - * irrespective of its state on entry, which allows the link to come up. + * irrespective of its state on entry, which allows the link to come + * up in the in-band case where there is no separate SERDES. Also + * ensure that the link can come up if the PPU is in use and we are + * in PHY mode (we treat the PPU as an effective in-band mechanism.) */ - if (mode == MLO_AN_INBAND && p->interface != state->interface && - chip->info->ops->port_set_link) + if (chip->info->ops->port_set_link && + ((mode == MLO_AN_INBAND && p->interface != state->interface) || + (mode == MLO_AN_PHY && mv88e6xxx_port_ppu_updates(chip, port)))) chip->info->ops->port_set_link(chip, port, LINK_UNFORCED); p->interface = state->interface; -- cgit