On 02/07/07, Stephen Hemminger <[EMAIL PROTECTED]> wrote:
On Mon, 2 Jul 2007 14:37:06 +0100 "Daniel J Blueman" <[EMAIL PROTECTED]> wrote: > When the sky2 driver initialises, it sets the the ISR timer register > (STAT_ISR_TIMER_INI) to 125 * 20 = 2500, whereas the vendor sk98lin > driver sets it to 400, irrespective of the clockspeed of the NIC > processor. > > I guess you found more performance/stability from this value...?
Not really, it was just a rough guess to try and get more frames per irq under DoS load. Haven't fine tuned those values.
> I've checked through the errata workarounds common to my rev-1 and 2 > Yukon-EC chips...the HWF_WA_DEV_4167 "oversize receive hang" > workaround checks and can reset the (as I understand) bus master unit > of the NIC (in CheckRxPath) in a periodic timer that is fired, where > is finds no progress is made.
Where did you get those errata's. I keep having to do reverse engineering guessing with vendor driver.
http://www.syskonnect.de/e_en/products/adapters/pcie_server/sk-9exx/software/linux/driver/install_v10.0.4.3.tar.bz2 from sk98lin.tar.bz2 inside ---> defined in ./common/h/skgeinit.h /*-RMV- DWORD 1: Deviations */ #define HWF_WA_DEV_53 0x11000000UL /*-RMV- 5.3 (Tx Done LSOv2 rep)*/ #define HWF_WA_DEV_LIM_IPV6_RSS 0x10800000UL /*-RMV- IPV6 RSS limitted */ #define HWF_WA_DEV_4217 0x10400000UL /*-RMV- 4.217 (PCI-E blockage) */ #define HWF_WA_DEV_4200 0x10200000UL /*-RMV- 4.200 (D3 Blue Screen)*/ #define HWF_WA_DEV_4185CS 0x10100000UL /*-RMV- 4.185 (ECU 100 CS cal)*/ #define HWF_WA_DEV_4185 0x10080000UL /*-RMV- 4.185 (ECU Tx h check)*/ #define HWF_WA_DEV_4167 0x10040000UL /*-RMV- 4.167 (Rx OvSize Hang)*/ #define HWF_WA_DEV_4152 0x10020000UL /*-RMV- 4.152 (RSS issue) */ #define HWF_WA_DEV_4115 0x10010000UL /*-RMV- 4.115 (Rx MAC FIFO) */ #define HWF_WA_DEV_4109 0x10008000UL /*-RMV- 4.109 (BIU hang) */ #define HWF_WA_DEV_483 0x10004000UL /*-RMV- 4.83 (Rx TCP wrong) */ #define HWF_WA_DEV_479 0x10002000UL /*-RMV- 4.79 (Rx BMU hang II) */ #define HWF_WA_DEV_472 0x10001000UL /*-RMV- 4.72 (GPHY2 MDC clk) */ #define HWF_WA_DEV_463 0x10000800UL /*-RMV- 4.63 (Rx BMU hang I) */ #define HWF_WA_DEV_427 0x10000400UL /*-RMV- 4.27 (Tx Done Rep) */ #define HWF_WA_DEV_42 0x10000200UL /*-RMV- 4.2 (pref unit burst) */ #define HWF_WA_DEV_46 0x10000100UL /*-RMV- 4.6 (CPU crash II) */ #define HWF_WA_DEV_43_418 0x10000080UL /*-RMV- 4.3 & 4.18 (PCI unexp */ /*-RMV- compl&Stat BMU deadl) */ #define HWF_WA_DEV_420 0x10000040UL /*-RMV- 4.20 (Status BMU ov) */ #define HWF_WA_DEV_423 0x10000020UL /*-RMV- 4.23 (TCP Segm Hang) */ #define HWF_WA_DEV_424 0x10000010UL /*-RMV- 4.24 (MAC reg overwr) */ #define HWF_WA_DEV_425 0x10000008UL /*-RMV- 4.25 (Magic packet */ /*-RMV- with odd offset) */ #define HWF_WA_DEV_428 0x10000004UL /*-RMV- 4.28 (Poll-U &BigEndi)*/ #define HWF_WA_FIFO_FLUSH_YLA0 0x10000002UL /*-RMV- dis Rx GMAC FIFO Flush*/ /*-RMV- for Yu-L Rev. A0 only */ #define HWF_WA_COMA_MODE 0x10000001UL /*-RMV- Coma Mode WA req */ ---> common/skgeinit.c:SkGeSetUpSupFeatures() case CHIP_ID_YUKON_EC: pAC->GIni.HwF.Features[HW_DEV_LIST] = HWF_WA_DEV_42 | HWF_WA_DEV_46 | HWF_WA_DEV_43_418 | ... case CHIP_ID_YUKON_FE: pAC->GIni.HwF.Features[HW_DEV_LIST] = HWF_WA_DEV_427 | HWF_WA_DEV_4109 | HWF_WA_DEV_4152 | HWF_WA_DEV_4167; break; case CHIP_ID_YUKON_XL: ... etc It's worthwhile looking at 2.6/skge.c:CheckRxPath() and it's call-site from the timer handler. Thanks, Daniel -- Daniel J Blueman - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
