Module Name: src
Committed By: knakahara
Date: Tue May 24 08:35:47 UTC 2022
Modified Files:
src/sys/dev/pci/qat: qat_c2xxx.c
Log Message:
Workaround for Atom C2000 series (Rangeley) qat, ok'ed by hikaru@n.o.
C2000 qat has two engines, however it doesn't have arbiter.
If we enable both engines, qat interrupts twice wrongly (and second
interrupt notice invalid data). So, we enable only one engine.
To generate a diff of this commit:
cvs rdiff -u -r1.1 -r1.2 src/sys/dev/pci/qat/qat_c2xxx.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/pci/qat/qat_c2xxx.c
diff -u src/sys/dev/pci/qat/qat_c2xxx.c:1.1 src/sys/dev/pci/qat/qat_c2xxx.c:1.2
--- src/sys/dev/pci/qat/qat_c2xxx.c:1.1 Wed Nov 20 09:37:46 2019
+++ src/sys/dev/pci/qat/qat_c2xxx.c Tue May 24 08:35:47 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: qat_c2xxx.c,v 1.1 2019/11/20 09:37:46 hikaru Exp $ */
+/* $NetBSD: qat_c2xxx.c,v 1.2 2022/05/24 08:35:47 knakahara Exp $ */
/*
* Copyright (c) 2019 Internet Initiative Japan, Inc.
@@ -57,7 +57,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: qat_c2xxx.c,v 1.1 2019/11/20 09:37:46 hikaru Exp $");
+__KERNEL_RCSID(0, "$NetBSD: qat_c2xxx.c,v 1.2 2022/05/24 08:35:47 knakahara Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -171,7 +171,16 @@ const struct qat_hw qat_hw_c2xxx = {
.qhw_num_ap_banks = ETR_MAX_AP_BANKS_C2XXX,
.qhw_num_rings_per_bank = ETR_MAX_RINGS_PER_BANK,
.qhw_num_accel = MAX_ACCEL_C2XXX,
+#if 0
.qhw_num_engines = MAX_AE_C2XXX,
+#else
+ /*
+ * Workaround:
+ * C2xxx qat has two engines, however it doesn't have arbiter which
+ * C3xxx qat has. So, we don't use secondary engine for C2xxx qat.
+ */
+ .qhw_num_engines = 1,
+#endif
.qhw_tx_rx_gap = ETR_TX_RX_GAP_C2XXX,
.qhw_tx_rings_mask = ETR_TX_RINGS_MASK_C2XXX,
.qhw_msix_ae_vec_gap = MSIX_AE_VEC_GAP_C2XXX,
