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be2net: Clear any capability flags that driver is not interested in.

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It is possible for some versions of firmware to advertise capabilities that driver
is not ready to handle. This may lead to controller stall. Since the driver is
interested only in subset of flags, clearing the rest.

Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sarveshwar Bandi 2013-08-14 13:21:47 +05:30 committed by David S. Miller
parent d9bf5f1309
commit 3da988c91d
2 changed files with 9 additions and 0 deletions
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3
drivers/net/ethernet/emulex/benet/be_cmds.c
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@ -3048,6 +3048,9 @@ int be_cmd_get_func_config(struct be_adapter *adapter)
adapter->max_event_queues = le16_to_cpu(desc->eq_count);
adapter->if_cap_flags = le32_to_cpu(desc->cap_flags);
/* Clear flags that driver is not interested in */
adapter->if_cap_flags &= BE_IF_CAP_FLAGS_WANT;
}
err:
mutex_unlock(&adapter->mbox_lock);

6
drivers/net/ethernet/emulex/benet/be_cmds.h
View File

@ -563,6 +563,12 @@ enum be_if_flags {
BE_IF_FLAGS_MULTICAST = 0x1000
};
#define BE_IF_CAP_FLAGS_WANT (BE_IF_FLAGS_RSS | BE_IF_FLAGS_PROMISCUOUS |\
BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_VLAN_PROMISCUOUS |\
BE_IF_FLAGS_VLAN | BE_IF_FLAGS_MCAST_PROMISCUOUS |\
BE_IF_FLAGS_PASS_L3L4_ERRORS | BE_IF_FLAGS_MULTICAST |\
BE_IF_FLAGS_UNTAGGED)
/* An RX interface is an object with one or more MAC addresses and
* filtering capabilities. */
struct be_cmd_req_if_create {