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Date: Wed, 11 Dec 2019 19:54:29 +0800
From: kbuild test robot <lkp@...el.com>
To: Manish Chopra <manishc@...vell.com>
Cc: kbuild-all@...ts.01.org, davem@...emloft.net,
netdev@...r.kernel.org, aelior@...vell.com, skalluru@...vell.com
Subject: Re: [PATCH net 1/2] bnx2x: Do not handle requests from VFs after
parity
Hi Manish,
I love your patch! Yet something to improve:
[auto build test ERROR on net/master]
[cannot apply to net-next/master sparc-next/master v5.5-rc1 next-20191210]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Manish-Chopra/bnx2x-bug-fixes/20191211-112633
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git 24dee0c7478d1a1e00abdf5625b7f921467325dc
config: powerpc-defconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 7.5.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.5.0 make.cross ARCH=powerpc
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>
All error/warnings (new ones prefixed by >>):
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c: In function 'bnx2x_parity_recover':
>> drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:9983:30: error: 'struct bnx2x' has no member named 'requested_nr_virtfn'
for (vf_idx = 0; vf_idx < bp->requested_nr_virtfn; vf_idx++) {
^~
>> drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:9984:28: error: implicit declaration of function 'BP_VF'; did you mean 'BP_VN'? [-Werror=implicit-function-declaration]
struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
^~~~~
BP_VN
>> drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:9984:28: warning: initialization makes pointer from integer without a cast [-Wint-conversion]
>> drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:9987:6: error: dereferencing pointer to incomplete type 'struct bnx2x_virtf'
vf->state = VF_LOST;
^~
>> drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:9987:16: error: 'VF_LOST' undeclared (first use in this function); did you mean 'AF_ROSE'?
vf->state = VF_LOST;
^~~~~~~
AF_ROSE
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:9987:16: note: each undeclared identifier is reported only once for each function it appears in
cc1: some warnings being treated as errors
vim +9983 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
9971
9972 /*
9973 * Assumption: runs under rtnl lock. This together with the fact
9974 * that it's called only from bnx2x_sp_rtnl() ensure that it
9975 * will never be called when netif_running(bp->dev) is false.
9976 */
9977 static void bnx2x_parity_recover(struct bnx2x *bp)
9978 {
9979 u32 error_recovered, error_unrecovered;
9980 bool is_parity, global = false;
9981 int vf_idx;
9982
> 9983 for (vf_idx = 0; vf_idx < bp->requested_nr_virtfn; vf_idx++) {
> 9984 struct bnx2x_virtf *vf = BP_VF(bp, vf_idx);
9985
9986 if (vf)
> 9987 vf->state = VF_LOST;
9988 }
9989
9990 DP(NETIF_MSG_HW, "Handling parity\n");
9991 while (1) {
9992 switch (bp->recovery_state) {
9993 case BNX2X_RECOVERY_INIT:
9994 DP(NETIF_MSG_HW, "State is BNX2X_RECOVERY_INIT\n");
9995 is_parity = bnx2x_chk_parity_attn(bp, &global, false);
9996 WARN_ON(!is_parity);
9997
9998 /* Try to get a LEADER_LOCK HW lock */
9999 if (bnx2x_trylock_leader_lock(bp)) {
10000 bnx2x_set_reset_in_progress(bp);
10001 /*
10002 * Check if there is a global attention and if
10003 * there was a global attention, set the global
10004 * reset bit.
10005 */
10006
10007 if (global)
10008 bnx2x_set_reset_global(bp);
10009
10010 bp->is_leader = 1;
10011 }
10012
10013 /* Stop the driver */
10014 /* If interface has been removed - break */
10015 if (bnx2x_nic_unload(bp, UNLOAD_RECOVERY, false))
10016 return;
10017
10018 bp->recovery_state = BNX2X_RECOVERY_WAIT;
10019
10020 /* Ensure "is_leader", MCP command sequence and
10021 * "recovery_state" update values are seen on other
10022 * CPUs.
10023 */
10024 smp_mb();
10025 break;
10026
10027 case BNX2X_RECOVERY_WAIT:
10028 DP(NETIF_MSG_HW, "State is BNX2X_RECOVERY_WAIT\n");
10029 if (bp->is_leader) {
10030 int other_engine = BP_PATH(bp) ? 0 : 1;
10031 bool other_load_status =
10032 bnx2x_get_load_status(bp, other_engine);
10033 bool load_status =
10034 bnx2x_get_load_status(bp, BP_PATH(bp));
10035 global = bnx2x_reset_is_global(bp);
10036
10037 /*
10038 * In case of a parity in a global block, let
10039 * the first leader that performs a
10040 * leader_reset() reset the global blocks in
10041 * order to clear global attentions. Otherwise
10042 * the gates will remain closed for that
10043 * engine.
10044 */
10045 if (load_status ||
10046 (global && other_load_status)) {
10047 /* Wait until all other functions get
10048 * down.
10049 */
10050 schedule_delayed_work(&bp->sp_rtnl_task,
10051 HZ/10);
10052 return;
10053 } else {
10054 /* If all other functions got down -
10055 * try to bring the chip back to
10056 * normal. In any case it's an exit
10057 * point for a leader.
10058 */
10059 if (bnx2x_leader_reset(bp)) {
10060 bnx2x_recovery_failed(bp);
10061 return;
10062 }
10063
10064 /* If we are here, means that the
10065 * leader has succeeded and doesn't
10066 * want to be a leader any more. Try
10067 * to continue as a none-leader.
10068 */
10069 break;
10070 }
10071 } else { /* non-leader */
10072 if (!bnx2x_reset_is_done(bp, BP_PATH(bp))) {
10073 /* Try to get a LEADER_LOCK HW lock as
10074 * long as a former leader may have
10075 * been unloaded by the user or
10076 * released a leadership by another
10077 * reason.
10078 */
10079 if (bnx2x_trylock_leader_lock(bp)) {
10080 /* I'm a leader now! Restart a
10081 * switch case.
10082 */
10083 bp->is_leader = 1;
10084 break;
10085 }
10086
10087 schedule_delayed_work(&bp->sp_rtnl_task,
10088 HZ/10);
10089 return;
10090
10091 } else {
10092 /*
10093 * If there was a global attention, wait
10094 * for it to be cleared.
10095 */
10096 if (bnx2x_reset_is_global(bp)) {
10097 schedule_delayed_work(
10098 &bp->sp_rtnl_task,
10099 HZ/10);
10100 return;
10101 }
10102
10103 error_recovered =
10104 bp->eth_stats.recoverable_error;
10105 error_unrecovered =
10106 bp->eth_stats.unrecoverable_error;
10107 bp->recovery_state =
10108 BNX2X_RECOVERY_NIC_LOADING;
10109 if (bnx2x_nic_load(bp, LOAD_NORMAL)) {
10110 error_unrecovered++;
10111 netdev_err(bp->dev,
10112 "Recovery failed. Power cycle needed\n");
10113 /* Disconnect this device */
10114 netif_device_detach(bp->dev);
10115 /* Shut down the power */
10116 bnx2x_set_power_state(
10117 bp, PCI_D3hot);
10118 smp_mb();
10119 } else {
10120 bp->recovery_state =
10121 BNX2X_RECOVERY_DONE;
10122 error_recovered++;
10123 smp_mb();
10124 }
10125 bp->eth_stats.recoverable_error =
10126 error_recovered;
10127 bp->eth_stats.unrecoverable_error =
10128 error_unrecovered;
10129
10130 return;
10131 }
10132 }
10133 default:
10134 return;
10135 }
10136 }
10137 }
10138
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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