From: sunil.kovvuri@gmail.com
To: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Sunil Goutham <sgoutham@cavium.com>
Subject: [PATCH v2 21/21] net: thunderx: Don't set RX_PACKET_DIS while initializing
Date: Fri, 12 Aug 2016 16:51:44 +0530 [thread overview]
Message-ID: <1471000904-21715-22-git-send-email-sunil.kovvuri@gmail.com> (raw)
In-Reply-To: <1471000904-21715-1-git-send-email-sunil.kovvuri@gmail.com>
From: Sunil Goutham <sgoutham@cavium.com>
Setting BGXX_SPUX_MISC_CONTROL::RX_PACKET_DIS is not needed as
packet reception is anyway disabled by BGXX_CMRX_CONFIG::DATA_PKT_RX_EN.
Also setting RX_PACKET_DIS causes a bogus remote fault condition
which delays link detection.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
---
drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 18 +++++++-----------
1 file changed, 7 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index ca58d7f..8bbaedb 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -459,12 +459,14 @@ static int bgx_lmac_xaui_init(struct bgx *bgx, struct lmac *lmac)
bgx_reg_modify(bgx, lmacid, BGX_SPUX_CONTROL1, SPU_CTL_LOW_POWER);
/* Set interleaved running disparity for RXAUI */
- if (lmac->lmac_type != BGX_MODE_RXAUI)
- bgx_reg_modify(bgx, lmacid,
- BGX_SPUX_MISC_CONTROL, SPU_MISC_CTL_RX_DIS);
- else
+ if (lmac->lmac_type == BGX_MODE_RXAUI)
bgx_reg_modify(bgx, lmacid, BGX_SPUX_MISC_CONTROL,
- SPU_MISC_CTL_RX_DIS | SPU_MISC_CTL_INTLV_RDISP);
+ SPU_MISC_CTL_INTLV_RDISP);
+
+ /* Clear receive packet disable */
+ cfg = bgx_reg_read(bgx, lmacid, BGX_SPUX_MISC_CONTROL);
+ cfg &= ~SPU_MISC_CTL_RX_DIS;
+ bgx_reg_write(bgx, lmacid, BGX_SPUX_MISC_CONTROL, cfg);
/* clear all interrupts */
cfg = bgx_reg_read(bgx, lmacid, BGX_SMUX_RX_INT);
@@ -537,7 +539,6 @@ static int bgx_xaui_check_link(struct lmac *lmac)
int lmac_type = lmac->lmac_type;
u64 cfg;
- bgx_reg_modify(bgx, lmacid, BGX_SPUX_MISC_CONTROL, SPU_MISC_CTL_RX_DIS);
if (lmac->use_training) {
cfg = bgx_reg_read(bgx, lmacid, BGX_SPUX_INT);
if (!(cfg & (1ull << 13))) {
@@ -607,11 +608,6 @@ static int bgx_xaui_check_link(struct lmac *lmac)
return -1;
}
- /* Clear receive packet disable */
- cfg = bgx_reg_read(bgx, lmacid, BGX_SPUX_MISC_CONTROL);
- cfg &= ~SPU_MISC_CTL_RX_DIS;
- bgx_reg_write(bgx, lmacid, BGX_SPUX_MISC_CONTROL, cfg);
-
/* Check for MAC RX faults */
cfg = bgx_reg_read(bgx, lmacid, BGX_SMUX_RX_CTL);
/* 0 - Link is okay, 1 - Local fault, 2 - Remote fault */
--
2.7.4
next prev parent reply other threads:[~2016-08-12 11:23 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-12 11:21 [PATCH v2 00/21] net: thunderx: Support for newer chips and miscellaneous patches sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 01/21] net: thunderx: Moved HW capability info from macros to structure sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 02/21] net: thunderx: Add VNIC's PCI devid on future chips sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 03/21] net: thunderx: Add support for 81xx and 83xx chips sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 04/21] net: thunderx: Set queue count based on number of CPUs sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 05/21] net: thunderx: Enable CQE_RX desc's extension fields sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 06/21] net: thunderx: Enable mailbox interrupts on 81xx/83xx sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 07/21] net: thunderx: Support for different LMAC types within BGX sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 08/21] net: thunderx: Add 81xx support to BGX driver sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 09/21] net: thunderx: Add QSGMII interface type support sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 10/21] net: thunderx: Add RGMII " sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 11/21] net: thunderx: Add support for 16 LMACs of 83xx sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 12/21] net: thunderx: Support for 83xx mixed QLM/DLM config sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 13/21] net: thunderx: Use netdev's name for naming VF's interrupts sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 14/21] net: thunderx: Use skb_add_rx_frag() for split buffer Rx pkts sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 15/21] net: thunderx: Improvement for MBX interface debug messages sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 16/21] net: thunderx: Reset RXQ HW stats when interface is brought down sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 17/21] net: thunderx: Don't set mac address for secondary Qset VFs sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 18/21] net: thunderx: Use napi_consume_skb for bulk free sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 19/21] net: thunderx: Configure tunnelling protocol parsing sunil.kovvuri
2016-08-12 11:21 ` [PATCH v2 20/21] net: thunderx: Use netdev_rss_key_fill() helper sunil.kovvuri
2016-08-12 11:21 ` sunil.kovvuri [this message]
2016-08-13 19:01 ` [PATCH v2 00/21] net: thunderx: Support for newer chips and miscellaneous patches David Miller
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