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| author | Narender Kumar <narender.kumar@qlogic.com> | 2009-08-24 19:23:28 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-26 15:29:21 -0700 |
| commit | fa3ce355c1bf1a83b843420228202fd6f8023ad3 (patch) | |
| tree | b8ebdbc86bfa36215d9cfc1f2920a44f3b0e4ae3 /drivers/net/netxen/netxen_nic_hw.c | |
| parent | 3ad4467ca43e7a2556e26e4e304faf3385048834 (diff) | |
| download | linux-fa3ce355c1bf1a83b843420228202fd6f8023ad3.tar.gz linux-fa3ce355c1bf1a83b843420228202fd6f8023ad3.tar.bz2 linux-fa3ce355c1bf1a83b843420228202fd6f8023ad3.zip | |
netxen: bridged mode optimizations
When the interface is put in bridged mode, destination mac
addresses are unknown to firmware. So packets take a slow
path (lower priority) in firmware reducing performance.
Firmware can cache limited number of remote unicast mac
addresses for certain interval, if "dynamic mac learning"
mode is enabled.
Driver needs to enable this "mac learning" mode in firmware.
Currently this is done through net device class sysfs entry,
possibly this can also be done upon netlink notifications to
from bridge.
Signed-off-by: Narender Kumar <narender.kumar@qlogic.com>
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/netxen/netxen_nic_hw.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_hw.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c index 1a8ad62e12ee..db510cee8094 100644 --- a/drivers/net/netxen/netxen_nic_hw.c +++ b/drivers/net/netxen/netxen_nic_hw.c @@ -794,6 +794,37 @@ int netxen_config_hw_lro(struct netxen_adapter *adapter, int enable) return rv; } +int netxen_config_bridged_mode(struct netxen_adapter *adapter, int enable) +{ + nx_nic_req_t req; + u64 word; + int rv = 0; + + if (!!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED) == enable) + return rv; + + memset(&req, 0, sizeof(nx_nic_req_t)); + + req.qhdr = cpu_to_le64(NX_HOST_REQUEST << 23); + + word = NX_NIC_H2C_OPCODE_CONFIG_BRIDGING | + ((u64)adapter->portnum << 16); + req.req_hdr = cpu_to_le64(word); + + req.words[0] = cpu_to_le64(enable); + + rv = netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1); + if (rv != 0) { + printk(KERN_ERR "ERROR. Could not send " + "configure bridge mode request\n"); + } + + adapter->flags ^= NETXEN_NIC_BRIDGE_ENABLED; + + return rv; +} + + #define RSS_HASHTYPE_IP_TCP 0x3 int netxen_config_rss(struct netxen_adapter *adapter, int enable) |