Subject: Re: Tigon3 5701 PCI-X recv performance problem

From: John Partridge <[email-masked]>
Date: Tue, 11 Nov 2003 14:04:50 -0600

Is this OK ? I was not sure about the order should depends be beofre default or
the other way round ? or does it matter ? I suspect it does.

Thks
John

--- linux/drivers/net/tg3.c     2003-11-10 18:28:10.000000000 -0600
+++ patch/drivers/net/tg3.c     2003-11-10 18:58:35.000000000 -0600
@@ -2257,7 +2257,11 @@

                 len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - 4; /*                                                        omit crc */

-               if (len > RX_COPY_THRESHOLD) {
+               if (len > RX_COPY_THRESHOLD
+#if defined(CONFIG_UNALIGNED_EXPENSIVE)
+                        && tp->rx_offset == 2
+#endif
+               ) {
                         int skb_size;

                         skb_size = tg3_alloc_rx_skb(tp, opaque_key,
--- linux/arch/ia64/Kconfig     2003-10-25 13:44:46.000000000 -0500
+++ patch/arch/ia64/Kconfig     2003-11-11 14:01:42.000000000 -0600
@@ -468,6 +468,11 @@
           agent" (/sbin/hotplug) to load modules and set up software needed
           to use devices as you hotplug them.

+config CONFIG_UNALIGNED_EXPENSIVE
+       bool "Use Aligned SKB's for Tigon3 5701 network adapters"
+       depends on MCKINLEY
+       default y
+
  source "drivers/pci/hotplug/Kconfig"

  source "drivers/pcmcia/Kconfig"

-- 
John Partridge

Silicon Graphics Inc
Tel:  651-683-3428
Vnet: 233-3428
E-Mail: [email-masked]