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 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_FALCON_A(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_A1)
19#define EFX_WORKAROUND_FALCON_AB(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_B0)
20#define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
21#define EFX_WORKAROUND_10G(efx) 1
22
23/* Bit-bashed I2C reads cause performance drop */
24#define EFX_WORKAROUND_7884 EFX_WORKAROUND_10G
25/* Truncated IPv4 packets can confuse the TX packet parser */
26#define EFX_WORKAROUND_15592 EFX_WORKAROUND_FALCON_AB
27/* Legacy interrupt storm when interrupt fifo fills */
28#define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA
29
30/* Spurious parity errors in TSORT buffers */
31#define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A
32/* Unaligned read request >512 bytes after aligning may break TSORT */
33#define EFX_WORKAROUND_5391 EFX_WORKAROUND_FALCON_A
34/* iSCSI parsing errors */
35#define EFX_WORKAROUND_5583 EFX_WORKAROUND_FALCON_A
36/* RX events go missing */
37#define EFX_WORKAROUND_5676 EFX_WORKAROUND_FALCON_A
38/* RX_RESET on A1 */
39#define EFX_WORKAROUND_6555 EFX_WORKAROUND_FALCON_A
40/* Increase filter depth to avoid RX_RESET */
41#define EFX_WORKAROUND_7244 EFX_WORKAROUND_FALCON_A
42/* Flushes may never complete */
43#define EFX_WORKAROUND_7803 EFX_WORKAROUND_FALCON_AB
44/* Leak overlength packets rather than free */
45#define EFX_WORKAROUND_8071 EFX_WORKAROUND_FALCON_A
46
47/* Lockup when writing event block registers at gen2/gen3 */
48#define EFX_EF10_WORKAROUND_35388(efx)					\
49	(((struct efx_ef10_nic_data *)efx->nic_data)->workaround_35388)
50#define EFX_WORKAROUND_35388(efx)					\
51	(efx_nic_rev(efx) == EFX_REV_HUNT_A0 && EFX_EF10_WORKAROUND_35388(efx))
52
53#endif /* EFX_WORKAROUNDS_H */
54