From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
To: davem@davemloft.net
Cc: Andre Guedes <andre.guedes@intel.com>,
netdev@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com,
Aaron Brown <aaron.f.brown@intel.com>,
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Subject: [net-next v2 08/13] igc: Fix Rx timestamp disabling
Date: Mon, 29 Jun 2020 18:27:43 -0700 [thread overview]
Message-ID: <20200630012748.518705-9-jeffrey.t.kirsher@intel.com> (raw)
In-Reply-To: <20200630012748.518705-1-jeffrey.t.kirsher@intel.com>
From: Andre Guedes <andre.guedes@intel.com>
When Rx timestamping is enabled, we set the timestamp bit in SRRCTL
register for each queue, but we don't clear it when disabling. This
patch fixes igc_ptp_disable_rx_timestamp() accordingly.
Also, this patch gets rid of igc_ptp_enable_tstamp_rxqueue() and
igc_ptp_enable_tstamp_all_rxqueues() and move their logic into
igc_ptp_enable_rx_timestamp() to keep the enable and disable
helpers symmetric.
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/igc/igc_ptp.c | 54 ++++++++----------------
1 file changed, 17 insertions(+), 37 deletions(-)
diff --git a/drivers/net/ethernet/intel/igc/igc_ptp.c b/drivers/net/ethernet/intel/igc/igc_ptp.c
index 0251e6bedac4..e67d4655b47e 100644
--- a/drivers/net/ethernet/intel/igc/igc_ptp.c
+++ b/drivers/net/ethernet/intel/igc/igc_ptp.c
@@ -205,47 +205,20 @@ void igc_ptp_rx_pktstamp(struct igc_q_vector *q_vector, void *va,
ktime_sub_ns(skb_hwtstamps(skb)->hwtstamp, adjust);
}
-/**
- * igc_ptp_enable_tstamp_rxqueue - Enable RX timestamp for a queue
- * @rx_ring: Pointer to RX queue
- * @timer: Index for timer
- *
- * This function enables RX timestamping for a queue, and selects
- * which 1588 timer will provide the timestamp.
- */
-static void igc_ptp_enable_tstamp_rxqueue(struct igc_adapter *adapter,
- struct igc_ring *rx_ring, u8 timer)
-{
- struct igc_hw *hw = &adapter->hw;
- int reg_idx = rx_ring->reg_idx;
- u32 srrctl = rd32(IGC_SRRCTL(reg_idx));
-
- srrctl |= IGC_SRRCTL_TIMESTAMP;
- srrctl |= IGC_SRRCTL_TIMER1SEL(timer);
- srrctl |= IGC_SRRCTL_TIMER0SEL(timer);
-
- wr32(IGC_SRRCTL(reg_idx), srrctl);
-}
-
-static void igc_ptp_enable_tstamp_all_rxqueues(struct igc_adapter *adapter,
- u8 timer)
-{
- int i;
-
- for (i = 0; i < adapter->num_rx_queues; i++) {
- struct igc_ring *ring = adapter->rx_ring[i];
-
- igc_ptp_enable_tstamp_rxqueue(adapter, ring, timer);
- }
-}
-
static void igc_ptp_disable_rx_timestamp(struct igc_adapter *adapter)
{
struct igc_hw *hw = &adapter->hw;
u32 val;
+ int i;
wr32(IGC_TSYNCRXCTL, 0);
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ val = rd32(IGC_SRRCTL(i));
+ val &= ~IGC_SRRCTL_TIMESTAMP;
+ wr32(IGC_SRRCTL(i), val);
+ }
+
val = rd32(IGC_RXPBS);
val &= ~IGC_RXPBS_CFG_TS_EN;
wr32(IGC_RXPBS, val);
@@ -255,14 +228,21 @@ static void igc_ptp_enable_rx_timestamp(struct igc_adapter *adapter)
{
struct igc_hw *hw = &adapter->hw;
u32 val;
+ int i;
val = rd32(IGC_RXPBS);
val |= IGC_RXPBS_CFG_TS_EN;
wr32(IGC_RXPBS, val);
- /* FIXME: For now, only support retrieving RX timestamps from timer 0
- */
- igc_ptp_enable_tstamp_all_rxqueues(adapter, 0);
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ val = rd32(IGC_SRRCTL(i));
+ /* FIXME: For now, only support retrieving RX timestamps from
+ * timer 0.
+ */
+ val |= IGC_SRRCTL_TIMER1SEL(0) | IGC_SRRCTL_TIMER0SEL(0) |
+ IGC_SRRCTL_TIMESTAMP;
+ wr32(IGC_SRRCTL(i), val);
+ }
val = IGC_TSYNCRXCTL_ENABLED | IGC_TSYNCRXCTL_TYPE_ALL |
IGC_TSYNCRXCTL_RXSYNSIG;
--
2.26.2
next prev parent reply other threads:[~2020-06-30 1:27 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-30 1:27 [net-next v2 00/13][pull request] 1GbE Intel Wired LAN Driver Updates 2020-06-29 Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 01/13] igc: Add initial EEE support Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 02/13] igc: Add initial LTR support Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 03/13] igc: Clean up Rx timestamping logic Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 04/13] igc: Remove duplicate code in Tx timestamp handling Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 05/13] igc: Check __IGC_PTP_TX_IN_PROGRESS instead of ptp_tx_skb Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 06/13] igc: Remove UDP filter setup in PTP code Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 07/13] igc: Refactor igc_ptp_set_timestamp_mode() Jeff Kirsher
2020-06-30 1:27 ` Jeff Kirsher [this message]
2020-06-30 1:27 ` [net-next v2 09/13] igc: Add LPI counters Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 10/13] igc: Remove TCP segmentation TX fail counter Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 11/13] igc: Refactor the igc_power_down_link() Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 12/13] igc: Remove unneeded check for copper media type Jeff Kirsher
2020-06-30 1:27 ` [net-next v2 13/13] igc: Remove checking media type during MAC initialization Jeff Kirsher
2020-06-30 19:34 ` [net-next v2 00/13][pull request] 1GbE Intel Wired LAN Driver Updates 2020-06-29 David Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200630012748.518705-9-jeffrey.t.kirsher@intel.com \
--to=jeffrey.t.kirsher@intel.com \
--cc=aaron.f.brown@intel.com \
--cc=andre.guedes@intel.com \
--cc=davem@davemloft.net \
--cc=netdev@vger.kernel.org \
--cc=nhorman@redhat.com \
--cc=sassmann@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).