ethernet/sfc/workarounds.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /****************************************************************************
0003  * Driver for Solarflare network controllers and boards
0004  * Copyright 2006-2013 Solarflare Communications Inc.
0005  */
0006
0007 #ifndef EFX_WORKAROUNDS_H
0008 #define EFX_WORKAROUNDS_H
0009
0010 /*
0011  * Hardware workarounds.
0012  * Bug numbers are from Solarflare's Bugzilla.
0013  */
0014
0015 #define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
0016 #define EFX_WORKAROUND_EF10(efx) (efx_nic_rev(efx) >= EFX_REV_HUNT_A0)
0017 #define EFX_WORKAROUND_10G(efx) 1
0018
0019 /* Bit-bashed I2C reads cause performance drop */
0020 #define EFX_WORKAROUND_7884 EFX_WORKAROUND_10G
0021 /* Legacy interrupt storm when interrupt fifo fills */
0022 #define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA
0023
0024 /* Lockup when writing event block registers at gen2/gen3 */
0025 #define EFX_EF10_WORKAROUND_35388(efx)                  \
0026     (((struct efx_ef10_nic_data *)efx->nic_data)->workaround_35388)
0027 #define EFX_WORKAROUND_35388(efx)                   \
0028     (efx_nic_rev(efx) == EFX_REV_HUNT_A0 && EFX_EF10_WORKAROUND_35388(efx))
0029
0030 /* Moderation timer access must go through MCDI */
0031 #define EFX_EF10_WORKAROUND_61265(efx)                  \
0032     (((struct efx_ef10_nic_data *)efx->nic_data)->workaround_61265)
0033
0034 #endif /* EFX_WORKAROUNDS_H */