The sge_info debugfs collects offload queue info even when offload
capability is disabled and leads to panic.
[ 144.139871] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[ 144.139874] CR2:
0000000000000000 CR3:
000000082d456005 CR4:
00000000001606e0
[ 144.139876] Call Trace:
[ 144.139887] sge_queue_start+0x12/0x30 [cxgb4]
[ 144.139897] seq_read+0x1d4/0x3d0
[ 144.139906] full_proxy_read+0x50/0x70
[ 144.139913] vfs_read+0x89/0x140
[ 144.139916] ksys_read+0x55/0xd0
[ 144.139924] do_syscall_64+0x5b/0x1d0
[ 144.139933] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 144.139936] RIP: 0033:0x7f4b01493990
Fix this crash by skipping the offload queue access in sge_qinfo when
offload capability is disabled
Signed-off-by: Herat Ramani <herat@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
int tot_uld_entries = 0;
int i;
+ if (!is_uld(adap))
+ goto lld_only;
+
mutex_lock(&uld_mutex);
for (i = 0; i < CXGB4_TX_MAX; i++)
tot_uld_entries += sge_qinfo_uld_txq_entries(adap, i);
}
mutex_unlock(&uld_mutex);
+lld_only:
return DIV_ROUND_UP(adap->sge.ethqsets, 4) +
(adap->sge.eohw_txq ? DIV_ROUND_UP(adap->sge.eoqsets, 4) : 0) +
tot_uld_entries +