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88c991a917
The Cavium thunder nicvf driver supports rx/tx rings of up to 65536 entries per. The number of entires are stored in the q_len member of struct q_desc_mem. The problem is that q_len being a u16, results in 65536 becoming 0. In getting pointers to descriptors in the rings, the driver uses q_len minus 1 as a mask after incrementing the pointer, in order to go back to the beginning and not go past the end of the ring. With the q_len set to 0 the mask is no longer correct and the driver does go beyond the end of the ring, causing various ills. Usually the first thing that shows up is a "NETDEV WATCHDOG: enP2p1s0f1 (nicvf): transmit queue 7 timed out" warning. This patch remedies the problem by changing q_len to a u32. Signed-off-by: Dean Nelson <dnelson@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| Makefile | ||
| nic_main.c | ||
| nic_reg.h | ||
| nic.h | ||
| nicvf_ethtool.c | ||
| nicvf_main.c | ||
| nicvf_queues.c | ||
| nicvf_queues.h | ||
| q_struct.h | ||
| thunder_bgx.c | ||
| thunder_bgx.h | ||
| thunder_xcv.c | ||