drivers/net/sfc/workarounds.h

   1 /****************************************************************************
   2  * Driver for Solarflare Solarstorm network controllers and boards
   3  * Copyright 2006-2010 Solarflare Communications Inc.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 as published
   7  * by the Free Software Foundation, incorporated herein by reference.
   8  */
   9
  10 #ifndef EFX_WORKAROUNDS_H
  11 #define EFX_WORKAROUNDS_H
  12
  13 /*
  14  * Hardware workarounds.
  15  * Bug numbers are from Solarflare's Bugzilla.
  16  */
  17
  18 #define EFX_WORKAROUND_ALWAYS(efx) 1
  19 #define EFX_WORKAROUND_FALCON_A(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_A1)
  20 #define EFX_WORKAROUND_FALCON_AB(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_B0)
  21 #define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
  22 #define EFX_WORKAROUND_10G(efx) 1
  23
  24 /* XAUI resets if link not detected */
  25 #define EFX_WORKAROUND_5147 EFX_WORKAROUND_ALWAYS
  26 /* RX PCIe double split performance issue */
  27 #define EFX_WORKAROUND_7575 EFX_WORKAROUND_ALWAYS
  28 /* Bit-bashed I2C reads cause performance drop */
  29 #define EFX_WORKAROUND_7884 EFX_WORKAROUND_10G
  30 /* TX_EV_PKT_ERR can be caused by a dangling TX descriptor
  31  * or a PCIe error (bug 11028) */
  32 #define EFX_WORKAROUND_10727 EFX_WORKAROUND_ALWAYS
  33 /* Transmit flow control may get disabled */
  34 #define EFX_WORKAROUND_11482 EFX_WORKAROUND_FALCON_AB
  35 /* Truncated IPv4 packets can confuse the TX packet parser */
  36 #define EFX_WORKAROUND_15592 EFX_WORKAROUND_FALCON_AB
  37 /* Legacy ISR read can return zero once */
  38 #define EFX_WORKAROUND_15783 EFX_WORKAROUND_ALWAYS
  39 /* Legacy interrupt storm when interrupt fifo fills */
  40 #define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA
  41 /* Write combining and sriov=enabled are incompatible */
  42 #define EFX_WORKAROUND_22643 EFX_WORKAROUND_SIENA
  43
  44 /* Spurious parity errors in TSORT buffers */
  45 #define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A
  46 /* Unaligned read request >512 bytes after aligning may break TSORT */
  47 #define EFX_WORKAROUND_5391 EFX_WORKAROUND_FALCON_A
  48 /* iSCSI parsing errors */
  49 #define EFX_WORKAROUND_5583 EFX_WORKAROUND_FALCON_A
  50 /* RX events go missing */
  51 #define EFX_WORKAROUND_5676 EFX_WORKAROUND_FALCON_A
  52 /* RX_RESET on A1 */
  53 #define EFX_WORKAROUND_6555 EFX_WORKAROUND_FALCON_A
  54 /* Increase filter depth to avoid RX_RESET */
  55 #define EFX_WORKAROUND_7244 EFX_WORKAROUND_FALCON_A
  56 /* Flushes may never complete */
  57 #define EFX_WORKAROUND_7803 EFX_WORKAROUND_FALCON_AB
  58 /* Leak overlength packets rather than free */
  59 #define EFX_WORKAROUND_8071 EFX_WORKAROUND_FALCON_A
  60
  61 #endif /* EFX_WORKAROUNDS_H */