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