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path: root/drivers/net/ethernet/huawei/hinic
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2018-09-28hinic: remove ndo_poll_controllerEric Dumazet1-20/+0
As diagnosed by Song Liu, ndo_poll_controller() can be very dangerous on loaded hosts, since the cpu calling ndo_poll_controller() might steal all NAPI contexts (for all RX/TX queues of the NIC). This capture can last for unlimited amount of time, since one cpu is generally not able to drain all the queues under load. hinic uses NAPI for TX completions, so we better let core networking stack call the napi->poll() to avoid the capture. Note that hinic_netpoll() was incorrectly scheduling NAPI on both RX and TX queues. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-08net-next: hinic: fix a problem in free_tx_poll()Zhao Chen3-11/+49
This patch fixes the problem below. The problem can be reproduced by the following steps: 1) Connecting all HiNIC interfaces 2) On server side # sudo ifconfig eth0 192.168.100.1 up #Using MLX CX4 card # iperf -s 3) On client side # sudo ifconfig eth0 192.168.100.2 up #Using our HiNIC card # iperf -c 192.168.101.1 -P 10 -t 100000 after hours of testing, we will see errors: hinic 0000:05:00.0: No MGMT msg handler, mod = 0 hinic 0000:05:00.0: No MGMT msg handler, mod = 0 hinic 0000:05:00.0: No MGMT msg handler, mod = 0 hinic 0000:05:00.0: No MGMT msg handler, mod = 0 The errors are caused by the following problem. 1) The hinic_get_wqe() checks the "wq->delta" to allocate new WQEs: if (atomic_sub_return(num_wqebbs, &wq->delta) <= 0) { atomic_add(num_wqebbs, &wq->delta); return ERR_PTR(-EBUSY); } If the WQE occupies multiple pages, the shadow WQE will be used. Then the hinic_xmit_frame() fills the WQE. 2) While in parallel with 1), the free_tx_poll() checks the "wq->delta" to free old WQEs: if ((atomic_read(&wq->delta) + num_wqebbs) > wq->q_depth) return ERR_PTR(-EBUSY); There is a probability that the shadow WQE which hinic_xmit_frame() is using will be damaged by copy_wqe_to_shadow(): if (curr_pg != end_pg) { void *shadow_addr = &wq->shadow_wqe[curr_pg * wq->max_wqe_size]; copy_wqe_to_shadow(wq, shadow_addr, num_wqebbs, *cons_idx); return shadow_addr; } This can cause WQE data error and you will see the above error messages. This patch fixes the problem. Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-02Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+1
The BTF conflicts were simple overlapping changes. The virtio_net conflict was an overlap of a fix of statistics counter, happening alongisde a move over to a bonafide statistics structure rather than counting value on the stack. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-25hinic: Link the logical network device to the pci device in sysfsdann frazier1-0/+1
Otherwise interfaces get exposed under /sys/devices/virtual, which doesn't give udev the context it needs for PCI-based predictable interface names. Signed-off-by: dann frazier <dann.frazier@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-25Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+1
2018-07-20net-next/hinic: fix a problem in hinic_xmit_frame()Zhao Chen1-0/+1
The calculation of "wqe_size" is not correct when the tx queue is busy in hinic_xmit_frame(). When there are no free WQEs, the tx flow will unmap the skb buffer, then ring the doobell for the pending packets. But the "wqe_size" which used to calculate the doorbell address is not correct. The wqe size should be cleared to 0, otherwise, it will cause a doorbell error. This patch fixes the problem. Reported-by: Zhou Wang <wangzhou1@hisilicon.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-04net: hinic: remove redundant pointer pfhwdevColin Ian King1-3/+0
Pointer pfhwdev is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable 'pfhwdev' set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-28hinic: reset irq affinity before freeing irqWei Yongjun1-0/+1
Following warning is seen when rmmod hinic. This is because affinity value is not reset before calling free_irq(). This patch fixes it. [ 55.181232] WARNING: CPU: 38 PID: 19589 at kernel/irq/manage.c:1608 __free_irq+0x2aa/0x2c0 Fixes: 352f58b0d9f2 ("net-next/hinic: Set Rxq irq to specific cpu for NUMA") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-13treewide: Use array_size() in vzalloc()Kees Cook1-2/+3
The vzalloc() function has no 2-factor argument form, so multiplication factors need to be wrapped in array_size(). This patch replaces cases of: vzalloc(a * b) with: vzalloc(array_size(a, b)) as well as handling cases of: vzalloc(a * b * c) with: vzalloc(array3_size(a, b, c)) This does, however, attempt to ignore constant size factors like: vzalloc(4 * 1024) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( vzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | vzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( vzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(u8) * COUNT + COUNT , ...) | vzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | vzalloc( - sizeof(char) * COUNT + COUNT , ...) | vzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( vzalloc( - sizeof(TYPE) * (COUNT_ID) + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT_ID + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT_CONST + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vzalloc( - sizeof(THING) * (COUNT_ID) + array_size(COUNT_ID, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT_ID + array_size(COUNT_ID, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT_CONST + array_size(COUNT_CONST, sizeof(THING)) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ vzalloc( - SIZE * COUNT + array_size(COUNT, SIZE) , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( vzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( vzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( vzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( vzalloc(C1 * C2 * C3, ...) | vzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants. @@ expression E1, E2; constant C1, C2; @@ ( vzalloc(C1 * C2, ...) | vzalloc( - E1 * E2 + array_size(E1, E2) , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-05-08net-next/hinic: add pci device ids for 25ge and 100ge cardZhao Chen1-2/+6
This patch adds PCI device IDs to support 25GE and 100GE card: 1. Add device id 0x0201 for HINIC 100GE dual port card. 2. Add device id 0x0200 for HINIC 25GE dual port card. 3. Macro of device id 0x1822 is modified for HINIC 25GE quad port card. Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-19net-next/hinic: add arm64 supportZhao Chen1-1/+1
This patch enables arm64 platform support for the HINIC driver. Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03hinic: Replace PCI pool old APIRomain Perier2-6/+6
The PCI pool API is deprecated. Replace the PCI pool old API by the appropriate function with the DMA pool API. Signed-off-by: Romain Perier <romain.perier@collabora.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: David S. Miller <davem@davemloft.net>
2017-09-28net-next/hinic: Fix a case of Tx Queue is Stopped foreverAviad Krawczyk1-2/+12
Fix the following scenario: 1. tx_free_poll is running on cpu X 2. xmit function is running on cpu Y and fails to get sq wqe 3. tx_free_poll frees wqes on cpu X and checks the queue is not stopped 4. xmit function stops the queue after failed to get sq wqe 5. The queue is stopped forever Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-28net-next/hinic: Set Rxq irq to specific cpu for NUMAAviad Krawczyk1-9/+9
Set Rxq irq to specific cpu for allocating and receiving the skb from the same node. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29hinic: don't build the module by defaultVitaly Kuznetsov1-1/+0
We probably don't want to enable code supporting particular hardware by default e.g. when someone does 'make defconfig'. Other ethernet modules don't do it. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29net-next/hinic: fix comparison of a uint16_t type with -1Aviad Krawczyk2-36/+22
Remove the search for index of constant buffer size Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29net-next/hinic: Fix MTU limitationAviad Krawczyk1-0/+1
Fix the hw MTU limitation by setting max_mtu Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-26hinic: skb_pad() frees on errorDan Carpenter1-1/+2
The skb_pad() function frees the skb on error, so this code has a double free. Fixes: 00e57a6d4ad3 ("net-next/hinic: Add Tx operation") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-25hinic: uninitialized variable in hinic_api_cmd_init()Dan Carpenter1-0/+1
We never set the error code in this function. Fixes: eabf0fad81d5 ("net-next/hinic: Initialize api cmd resources") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-24net: hinic: make functions set_ctrl0 and set_ctrl1 staticColin Ian King1-2/+2
The functions set_ctrl0 and set_ctrl1 are local to the source and do not need to be in global scope, so make them static. Cleans up sparse warnings: symbol 'set_ctrl0' was not declared. Should it be static? symbol 'set_ctrl1' was not declared. Should it be static? Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add netpollAviad Krawczyk1-0/+20
Add more netdev operation - netpoll. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add ethtool and statsAviad Krawczyk8-1/+341
Add ethtool operations and statistics operations. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add Tx operationAviad Krawczyk8-4/+799
Add transmit operation for sending data by qp operations. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add Rx handlerAviad Krawczyk16-0/+1278
Set the io resources in the nic and handle rx events by qp operations. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add cmdq completion handlerAviad Krawczyk2-1/+308
Add cmdq completion handler for getting a notification about the completion of cmdq commands. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add cmdq commandsAviad Krawczyk8-2/+683
Add cmdq commands for setting queue pair contexts in the nic. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add ceqsAviad Krawczyk7-8/+427
Initialize the completion event queues and handle ceq events by calling the registered handlers. Used for cmdq command completion. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Initialize cmdqAviad Krawczyk6-6/+500
Create the work queues for cmdq and update the nic about the work queue contexts. cmdq commands are used for updating the nic about the qp contexts. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Set qp contextAviad Krawczyk12-2/+787
Update the nic about the resources of the queue pairs. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add qp resourcesAviad Krawczyk6-5/+507
Create the resources for queue pair operations: doorbell area, consumer index address and producer index address. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add wqAviad Krawczyk8-5/+968
Create work queues for being used by the queue pairs. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add logical Txq and RxqAviad Krawczyk12-4/+793
Create the logical queues of the nic. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add Rx mode and link event handlerAviad Krawczyk11-1/+745
Add port management message for setting Rx mode in the card, used for rx_mode netdev operation. The link event handler is used for getting a notification about the link state. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add port management commandsAviad Krawczyk7-3/+551
Add the port management commands that are sent as management messages. The port management commands are used for netdev operations. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add aeqsAviad Krawczyk5-2/+727
Handle aeq elements that are accumulated on the aeq by calling the registered handler for the specific event. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add api cmd commandsAviad Krawczyk3-2/+398
Add the api cmd commands for sending management messages to the nic. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Add management messagesAviad Krawczyk5-3/+538
Add the management messages for sending to api cmd and the asynchronous event handler for the completion of the messages. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Initialize api cmd hwAviad Krawczyk3-1/+236
Update the hardware about api cmd resources and initialize it. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Initialize api cmd resourcesAviad Krawczyk5-2/+563
Initialize api cmd resources as part of management initialization. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Initialize hw device componentsAviad Krawczyk8-14/+576
Initialize hw device by calling the initialization functions of aeqs and management channel. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net-next/hinic: Initialize hw interfaceAviad Krawczyk9-0/+891
Initialize hw interface as part of the nic initialization for accessing hw. Signed-off-by: Aviad Krawczyk <aviad.krawczyk@huawei.com> Signed-off-by: Zhao Chen <zhaochen6@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>