drivers/net/ethernet/sfc/falcon/workarounds.h

   1 /****************************************************************************
   2  * Driver for Solarflare network controllers and boards
   3  * Copyright 2006-2013 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 EF4_WORKAROUNDS_H
  11 #define EF4_WORKAROUNDS_H
  12
  13 /*
  14  * Hardware workarounds.
  15  * Bug numbers are from Solarflare's Bugzilla.
  16  */
  17
  18 #define EF4_WORKAROUND_FALCON_A(efx) (ef4_nic_rev(efx) <= EF4_REV_FALCON_A1)
  19 #define EF4_WORKAROUND_FALCON_AB(efx) (ef4_nic_rev(efx) <= EF4_REV_FALCON_B0)
  20 #define EF4_WORKAROUND_10G(efx) 1
  21
  22 /* Bit-bashed I2C reads cause performance drop */
  23 #define EF4_WORKAROUND_7884 EF4_WORKAROUND_10G
  24 /* Truncated IPv4 packets can confuse the TX packet parser */
  25 #define EF4_WORKAROUND_15592 EF4_WORKAROUND_FALCON_AB
  26
  27 /* Spurious parity errors in TSORT buffers */
  28 #define EF4_WORKAROUND_5129 EF4_WORKAROUND_FALCON_A
  29 /* Unaligned read request >512 bytes after aligning may break TSORT */
  30 #define EF4_WORKAROUND_5391 EF4_WORKAROUND_FALCON_A
  31 /* iSCSI parsing errors */
  32 #define EF4_WORKAROUND_5583 EF4_WORKAROUND_FALCON_A
  33 /* RX events go missing */
  34 #define EF4_WORKAROUND_5676 EF4_WORKAROUND_FALCON_A
  35 /* RX_RESET on A1 */
  36 #define EF4_WORKAROUND_6555 EF4_WORKAROUND_FALCON_A
  37 /* Increase filter depth to avoid RX_RESET */
  38 #define EF4_WORKAROUND_7244 EF4_WORKAROUND_FALCON_A
  39 /* Flushes may never complete */
  40 #define EF4_WORKAROUND_7803 EF4_WORKAROUND_FALCON_AB
  41 /* Leak overlength packets rather than free */
  42 #define EF4_WORKAROUND_8071 EF4_WORKAROUND_FALCON_A
  43
  44 #endif /* EF4_WORKAROUNDS_H */