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| author | Dhananjay Phadke <dhananjay@netxen.com> | 2008-03-17 19:59:49 -0700 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2008-03-25 23:16:16 -0400 |
| commit | 05aaa02d799e8e9548d57ac92fcb05e783027341 (patch) | |
| tree | becfc839727f798364c13549e332de0830d7676f /drivers/net/netxen/netxen_nic.h | |
| parent | 443be7960be77f3345b44491c700ae4471b0fe57 (diff) | |
| download | blackbird-obmc-linux-05aaa02d799e8e9548d57ac92fcb05e783027341.tar.gz blackbird-obmc-linux-05aaa02d799e8e9548d57ac92fcb05e783027341.zip | |
netxen: napi and irq cleanup
o separate and simpler irq handler for msi interrupts, avoids few checks
than legacy mode.
o avoid redudant tx_has_work() and rx_has_work() checks in interrupt
and napi, which can uncork irq based on racy (lockless) access to tx
and rx ring indices. If we get interrupt, there's sufficient reason to
schedule napi.
o replenish rx ring more often, remove self-imposed threshold rcv_free
that prevents posting rx desc to card. This improves performance in
low memory.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Tested-by: Vernon Mauery <mauery@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/netxen/netxen_nic.h')
| -rw-r--r-- | drivers/net/netxen/netxen_nic.h | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h index 876cd0635f2e..8b6546ccb47b 100644 --- a/drivers/net/netxen/netxen_nic.h +++ b/drivers/net/netxen/netxen_nic.h @@ -842,7 +842,6 @@ struct netxen_rcv_desc_ctx { u32 flags; u32 producer; u32 rcv_pending; /* Num of bufs posted in phantom */ - u32 rcv_free; /* Num of bufs in free list */ dma_addr_t phys_addr; struct pci_dev *phys_pdev; struct rcv_desc *desc_head; /* address of rx ring in Phantom */ @@ -1076,12 +1075,10 @@ void netxen_tso_check(struct netxen_adapter *adapter, struct cmd_desc_type0 *desc, struct sk_buff *skb); int netxen_nic_hw_resources(struct netxen_adapter *adapter); void netxen_nic_clear_stats(struct netxen_adapter *adapter); -int netxen_nic_rx_has_work(struct netxen_adapter *adapter); -int netxen_nic_tx_has_work(struct netxen_adapter *adapter); void netxen_watchdog_task(struct work_struct *work); void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid); -int netxen_process_cmd_ring(unsigned long data); +int netxen_process_cmd_ring(struct netxen_adapter *adapter); u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctx, int max); void netxen_nic_set_multi(struct net_device *netdev); int netxen_nic_change_mtu(struct net_device *netdev, int new_mtu); |
