X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=Documentation%2Fnetworking%2Fs2io.txt;h=c3d6b4d5d014ab5dfe2c4cc39248b3c01f00a912;hb=e902a358c753b93245083201c02312a580cf13d4;hp=bd528ffbeb4b6c5b0add3dfdd626d2cfd7e843df;hpb=571de88b87e978b21ac4da481d317678aac9e562;p=safe%2Fjmp%2Flinux-2.6 diff --git a/Documentation/networking/s2io.txt b/Documentation/networking/s2io.txt index bd528ff..c3d6b4d 100644 --- a/Documentation/networking/s2io.txt +++ b/Documentation/networking/s2io.txt @@ -52,13 +52,10 @@ d. MSI/MSI-X. Can be enabled on platforms which support this feature (IA64, Xeon) resulting in noticeable performance improvement(upto 7% on certain platforms). -e. NAPI. Compile-time option(CONFIG_S2IO_NAPI) for better Rx interrupt -moderation. - -f. Statistics. Comprehensive MAC-level and software statistics displayed +e. Statistics. Comprehensive MAC-level and software statistics displayed using "ethtool -S" option. -g. Multi-FIFO/Ring. Supports up to 8 transmit queues and receive rings, +f. Multi-FIFO/Ring. Supports up to 8 transmit queues and receive rings, with multiple steering options. 4. Command line parameters @@ -83,9 +80,9 @@ Valid range: Limited by memory on system Default: 30 e. intr_type -Specifies interrupt type. Possible values 1(INTA), 2(MSI), 3(MSI-X) -Valid range: 1-3 -Default: 1 +Specifies interrupt type. Possible values 0(INTA), 2(MSI-X) +Valid values: 0, 2 +Default: 2 5. Performance suggestions General: @@ -126,7 +123,7 @@ However, you may want to set PCI latency timer to 248. #setpci -d 17d5:* LATENCY_TIMER=f8 For detailed description of the PCI registers, please see Xframe User Guide. b. Use 2-buffer mode. This results in large performance boost on -on certain platforms(eg. SGI Altix, IBM xSeries). +certain platforms(eg. SGI Altix, IBM xSeries). c. Ensure Receive Checksum offload is enabled. Use "ethtool -K ethX" command to set/verify this option. d. Enable NAPI feature(in kernel configuration Device Drivers ---> Network