From patchwork Tue Aug 29 10:40:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368800 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 82E3C14F98 for ; Tue, 29 Aug 2023 10:40:57 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 648271A2 for ; Tue, 29 Aug 2023 03:40:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693305656; x=1724841656; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=vziGEKQkhvglUca+VEBOArAjk5lf9uAfNsCF1T+Ik5I=; b=dcFyshCKm9He6f2f9DRbu6XwatxISRrQkISekXfgQxwoG6GBnfg1Bg+c S3W2cw1sMj7N3/0Xwf4Wcj6yearjdFqHgZR8lAM9F4JkwQM9+Esp7ZYeH m3qK/IWEy+z88Ag5Fs45MNnI/nmi6CyFXLMBsUrxlqu0C29uMLU75TV/Q 3DhoJMDFZiAwyWnm2yg6+ZQoPl00qjja9t/8To2z43WsFSbebM+t+ANVL TLUp89n825Qky/G8nAgfTPiz4u5LLOjppVVbvd8NdAf1AO/DBKXLD548T AX+ar0zEMGSlBH4+WIqOXJLI0QMp2xk3ZP3UygzU3JUAsaVIpwax0JWgk A==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461696872" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="461696872" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 03:40:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229755" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229755" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:40:54 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Jacob Keller , Karol Kolacinski Subject: [PATCH v4 iwl-next 01/11] ice: use ice_pf_src_tmr_owned where available Date: Tue, 29 Aug 2023 12:40:31 +0200 Message-Id: <20230829104041.64131-2-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Jacob Keller The ice_pf_src_tmr_owned() macro exists to check the function capability bit indicating if the current function owns the PTP hardware clock. This is slightly shorter than the more verbose access via hw.func_caps.ts_func_info.src_tmr_owned. Be consistent and use this where possible rather than open coding its equivalent. Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice_main.c | 2 +- drivers/net/ethernet/intel/ice/ice_ptp.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index a5997008bb98..8f327ad5b569 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -3185,7 +3185,7 @@ static irqreturn_t ice_misc_intr(int __always_unused irq, void *data) ena_mask &= ~PFINT_OICR_TSYN_EVNT_M; - if (hw->func_caps.ts_func_info.src_tmr_owned) { + if (ice_pf_src_tmr_owned(pf)) { /* Save EVENTs from GLTSYN register */ pf->ptp.ext_ts_irq |= gltsyn_stat & (GLTSYN_STAT_EVENT0_M | diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index ca40ca220cc9..2e3f0aaacddd 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -2449,7 +2449,7 @@ void ice_ptp_reset(struct ice_pf *pf) if (test_bit(ICE_PFR_REQ, pf->state)) goto pfr; - if (!hw->func_caps.ts_func_info.src_tmr_owned) + if (!ice_pf_src_tmr_owned(pf)) goto reset_ts; err = ice_ptp_init_phc(hw); From patchwork Tue Aug 29 10:40:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368801 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B3FE21548B for ; Tue, 29 Aug 2023 10:40:59 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 34EBB1AA for ; Tue, 29 Aug 2023 03:40:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693305658; x=1724841658; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Oe7yxP/YUgKz1TdkcC/Lq05GODfmjinwVMAkYM326Kw=; b=mtG09Ox+ioqJOUD25n/M6XuHoewypZnjXjr0sSuIhkoXkf1/cRA9mfvg HQ19+o56g6TrcsGHYaRWJKr5bVfnq9riI/cUnepCDOt89vxgG+Hp1RHFN Wak30Hv1KdxnzY+/W8fD51EOLb5n8PWHJCfr/450mIe6ihuJzFhAD0urI SGlIaV82Rz3SH3fFKbPvpsaq+JSN39ykOOGj9DVOAC6AO/16zqEwt4Q/U wdQILTpqIdwvhxvgYa10DfXhbSjBBC81+h/AiQDqQZeGPCAKPA/N10Riv MNW9b47hehycGYvruYjCUx/m8gdU2e7BrgTJSoBK18xPbaBHmb5V/00q9 w==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461696875" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="461696875" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 03:40:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229764" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229764" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:40:56 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Karol Kolacinski , Jacob Keller Subject: [PATCH v4 iwl-next 02/11] ice: introduce PTP state machine Date: Tue, 29 Aug 2023 12:40:32 +0200 Message-Id: <20230829104041.64131-3-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org Add PTP state machine so that the driver can correctly identify PTP state around resets. When the driver got information about ungraceful reset, PTP was not prepared for reset and it returned error. When this situation occurs, prepare PTP before rebuilding its structures. Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice.h | 1 - drivers/net/ethernet/intel/ice/ice_ethtool.c | 2 +- drivers/net/ethernet/intel/ice/ice_ptp.c | 132 ++++++++++++------- drivers/net/ethernet/intel/ice/ice_ptp.h | 10 ++ 4 files changed, 98 insertions(+), 47 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 051007ccab43..89e73cfd5473 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -489,7 +489,6 @@ enum ice_pf_flags { ICE_FLAG_DCB_ENA, ICE_FLAG_FD_ENA, ICE_FLAG_PTP_SUPPORTED, /* PTP is supported by NVM */ - ICE_FLAG_PTP, /* PTP is enabled by software */ ICE_FLAG_ADV_FEATURES, ICE_FLAG_TC_MQPRIO, /* support for Multi queue TC */ ICE_FLAG_CLS_FLOWER, diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index d3cb08e66dcb..7d57ecf48da0 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -3275,7 +3275,7 @@ ice_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) struct ice_pf *pf = ice_netdev_to_pf(dev); /* only report timestamping if PTP is enabled */ - if (!test_bit(ICE_FLAG_PTP, pf->flags)) + if (!test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) return ethtool_op_get_ts_info(dev, info); info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 2e3f0aaacddd..159885d48411 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -255,6 +255,31 @@ ice_verify_pin_e810t(struct ptp_clock_info *info, unsigned int pin, return ice_ptp_set_sma_e810t(info, pin, func); } +/** + * ice_ptp_state_str - Convert PTP state to readable string + * @state: PTP state to convert + * + * Returns: the human readable string representation of the provided PTP + * state, used for printing error messages. + */ +static const char *ice_ptp_state_str(enum ice_ptp_state state) +{ + switch (state) { + case ICE_PTP_UNINIT: + return "UNINITIALIZED"; + case ICE_PTP_INITIALIZING: + return "INITIALIZING"; + case ICE_PTP_READY: + return "READY"; + case ICE_PTP_RESETTING: + return "RESETTING"; + case ICE_PTP_ERROR: + return "ERROR"; + } + + return "UNKNOWN"; +} + /** * ice_ptp_configure_tx_tstamp - Enable or disable Tx timestamp interrupt * @pf: The PF pointer to search in @@ -1285,7 +1310,7 @@ void ice_ptp_link_change(struct ice_pf *pf, u8 port, bool linkup) struct ice_ptp_port *ptp_port; struct ice_hw *hw = &pf->hw; - if (!test_bit(ICE_FLAG_PTP, pf->flags)) + if (pf->ptp.state != ICE_PTP_READY) return; if (WARN_ON_ONCE(port >= ICE_NUM_EXTERNAL_PORTS)) @@ -2020,7 +2045,7 @@ int ice_ptp_get_ts_config(struct ice_pf *pf, struct ifreq *ifr) { struct hwtstamp_config *config; - if (!test_bit(ICE_FLAG_PTP, pf->flags)) + if (pf->ptp.state != ICE_PTP_READY) return -EIO; config = &pf->ptp.tstamp_config; @@ -2087,7 +2112,7 @@ int ice_ptp_set_ts_config(struct ice_pf *pf, struct ifreq *ifr) struct hwtstamp_config config; int err; - if (!test_bit(ICE_FLAG_PTP, pf->flags)) + if (pf->ptp.state != ICE_PTP_READY) return -EAGAIN; if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) @@ -2424,7 +2449,7 @@ static void ice_ptp_periodic_work(struct kthread_work *work) struct ice_pf *pf = container_of(ptp, struct ice_pf, ptp); int err; - if (!test_bit(ICE_FLAG_PTP, pf->flags)) + if (pf->ptp.state != ICE_PTP_READY) return; err = ice_ptp_update_cached_phctime(pf); @@ -2434,6 +2459,42 @@ static void ice_ptp_periodic_work(struct kthread_work *work) msecs_to_jiffies(err ? 10 : 500)); } +/** + * ice_ptp_prepare_for_reset - Prepare PTP for reset + * @pf: Board private structure + */ +void ice_ptp_prepare_for_reset(struct ice_pf *pf) +{ + struct ice_ptp *ptp = &pf->ptp; + u8 src_tmr; + + if (ptp->state != ICE_PTP_READY) + return; + + ptp->state = ICE_PTP_RESETTING; + + /* Disable timestamping for both Tx and Rx */ + ice_ptp_cfg_timestamp(pf, false); + + kthread_cancel_delayed_work_sync(&ptp->work); + + if (test_bit(ICE_PFR_REQ, pf->state)) + return; + + ice_ptp_release_tx_tracker(pf, &pf->ptp.port.tx); + + /* Disable periodic outputs */ + ice_ptp_disable_all_clkout(pf); + + src_tmr = ice_get_ptp_src_clock_index(&pf->hw); + + /* Disable source clock */ + wr32(&pf->hw, GLTSYN_ENA(src_tmr), (u32)~GLTSYN_ENA_TSYN_ENA_M); + + /* Acquire PHC and system timer to restore after reset */ + ptp->reset_time = ktime_get_real_ns(); +} + /** * ice_ptp_reset - Initialize PTP hardware clock support after reset * @pf: Board private structure @@ -2446,6 +2507,16 @@ void ice_ptp_reset(struct ice_pf *pf) int err, itr = 1; u64 time_diff; + if (ptp->state != ICE_PTP_RESETTING) { + if (ptp->state == ICE_PTP_READY) { + ice_ptp_prepare_for_reset(pf); + } else { + err = -EINVAL; + dev_err(ice_pf_to_dev(pf), "PTP was not initialized\n"); + goto err; + } + } + if (test_bit(ICE_PFR_REQ, pf->state)) goto pfr; @@ -2512,7 +2583,7 @@ void ice_ptp_reset(struct ice_pf *pf) if (err) goto err; - set_bit(ICE_FLAG_PTP, pf->flags); + ptp->state = ICE_PTP_READY; /* Start periodic work going */ kthread_queue_delayed_work(ptp->kworker, &ptp->work, 0); @@ -2521,6 +2592,7 @@ void ice_ptp_reset(struct ice_pf *pf) return; err: + ptp->state = ICE_PTP_ERROR; dev_err(ice_pf_to_dev(pf), "PTP reset failed %d\n", err); } @@ -2727,39 +2799,6 @@ int ice_ptp_clock_index(struct ice_pf *pf) return clock ? ptp_clock_index(clock) : -1; } -/** - * ice_ptp_prepare_for_reset - Prepare PTP for reset - * @pf: Board private structure - */ -void ice_ptp_prepare_for_reset(struct ice_pf *pf) -{ - struct ice_ptp *ptp = &pf->ptp; - u8 src_tmr; - - clear_bit(ICE_FLAG_PTP, pf->flags); - - /* Disable timestamping for both Tx and Rx */ - ice_ptp_cfg_timestamp(pf, false); - - kthread_cancel_delayed_work_sync(&ptp->work); - - if (test_bit(ICE_PFR_REQ, pf->state)) - return; - - ice_ptp_release_tx_tracker(pf, &pf->ptp.port.tx); - - /* Disable periodic outputs */ - ice_ptp_disable_all_clkout(pf); - - src_tmr = ice_get_ptp_src_clock_index(&pf->hw); - - /* Disable source clock */ - wr32(&pf->hw, GLTSYN_ENA(src_tmr), (u32)~GLTSYN_ENA_TSYN_ENA_M); - - /* Acquire PHC and system timer to restore after reset */ - ptp->reset_time = ktime_get_real_ns(); -} - /** * ice_ptp_init_owner - Initialize PTP_1588_CLOCK device * @pf: Board private structure @@ -3013,6 +3052,8 @@ void ice_ptp_init(struct ice_pf *pf) struct ice_hw *hw = &pf->hw; int err; + ptp->state = ICE_PTP_INITIALIZING; + ice_ptp_init_phy_model(hw); ice_ptp_init_tx_interrupt_mode(pf); @@ -3034,7 +3075,6 @@ void ice_ptp_init(struct ice_pf *pf) /* Start the PHY timestamping block */ ice_ptp_reset_phy_timestamping(pf); - set_bit(ICE_FLAG_PTP, pf->flags); err = ice_ptp_init_work(pf, ptp); if (err) goto err; @@ -3043,6 +3083,7 @@ void ice_ptp_init(struct ice_pf *pf) if (err) goto err; + ptp->state = ICE_PTP_READY; dev_info(ice_pf_to_dev(pf), "PTP init successful\n"); return; @@ -3052,7 +3093,7 @@ void ice_ptp_init(struct ice_pf *pf) ptp_clock_unregister(ptp->clock); pf->ptp.clock = NULL; } - clear_bit(ICE_FLAG_PTP, pf->flags); + ptp->state = ICE_PTP_ERROR; dev_err(ice_pf_to_dev(pf), "PTP failed %d\n", err); } @@ -3065,9 +3106,11 @@ void ice_ptp_init(struct ice_pf *pf) */ void ice_ptp_release(struct ice_pf *pf) { - if (!test_bit(ICE_FLAG_PTP, pf->flags)) + if (pf->ptp.state != ICE_PTP_READY) return; + pf->ptp.state = ICE_PTP_UNINIT; + /* Disable timestamping for both Tx and Rx */ ice_ptp_cfg_timestamp(pf, false); @@ -3075,8 +3118,6 @@ void ice_ptp_release(struct ice_pf *pf) ice_ptp_release_tx_tracker(pf, &pf->ptp.port.tx); - clear_bit(ICE_FLAG_PTP, pf->flags); - kthread_cancel_delayed_work_sync(&pf->ptp.work); ice_ptp_port_phy_stop(&pf->ptp.port); @@ -3086,6 +3127,9 @@ void ice_ptp_release(struct ice_pf *pf) pf->ptp.kworker = NULL; } + if (ice_pf_src_tmr_owned(pf)) + ice_ptp_unregister_auxbus_driver(pf); + if (!pf->ptp.clock) return; @@ -3095,7 +3139,5 @@ void ice_ptp_release(struct ice_pf *pf) ptp_clock_unregister(pf->ptp.clock); pf->ptp.clock = NULL; - ice_ptp_unregister_auxbus_driver(pf); - dev_info(ice_pf_to_dev(pf), "Removed PTP clock\n"); } diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index 8f6f94392756..674a0abe3cdd 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -201,8 +201,17 @@ struct ice_ptp_port_owner { #define GLTSYN_TGT_H_IDX_MAX 4 +enum ice_ptp_state { + ICE_PTP_UNINIT = 0, + ICE_PTP_INITIALIZING, + ICE_PTP_READY, + ICE_PTP_RESETTING, + ICE_PTP_ERROR, +}; + /** * struct ice_ptp - data used for integrating with CONFIG_PTP_1588_CLOCK + * @state: current state of PTP state machine * @tx_interrupt_mode: the TX interrupt mode for the PTP clock * @port: data for the PHY port initialization procedure * @ports_owner: data for the auxiliary driver owner @@ -225,6 +234,7 @@ struct ice_ptp_port_owner { * @late_cached_phc_updates: number of times cached PHC update is late */ struct ice_ptp { + enum ice_ptp_state state; enum ice_ptp_tx_interrupt tx_interrupt_mode; struct ice_ptp_port port; struct ice_ptp_port_owner ports_owner; From patchwork Tue Aug 29 10:40:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368802 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5D36E1548A for ; 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29 Aug 2023 03:40:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229774" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229774" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:40:58 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Jacob Keller , Karol Kolacinski Subject: [PATCH v4 iwl-next 03/11] ice: pass reset type to PTP reset functions Date: Tue, 29 Aug 2023 12:40:33 +0200 Message-Id: <20230829104041.64131-4-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Jacob Keller The ice_ptp_prepare_for_reset() and ice_ptp_reset() functions currently check the pf->flags ICE_FLAG_PFR_REQ bit to determine if the current reset is a PF reset or not. This is problematic, because it is possible that a PF reset and a higher level reset (CORE reset, GLOBAL reset, EMP reset) are requested simultaneously. In that case, the driver performs the highest level reset requested. However, the ICE_FLAG_PFR_REQ flag will still be set. The main driver reset functions take an enum ice_reset_req indicating which reset is actually being performed. Pass this data into the PTP functions and rely on this instead of relying on the driver flags. This ensures that the PTP code performs the proper level of reset that the driver is actually undergoing. Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice_main.c | 4 ++-- drivers/net/ethernet/intel/ice/ice_ptp.c | 17 ++++++++--------- drivers/net/ethernet/intel/ice/ice_ptp.h | 16 ++++++++++++---- 3 files changed, 22 insertions(+), 15 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 8f327ad5b569..0ef765db008b 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -611,7 +611,7 @@ ice_prepare_for_reset(struct ice_pf *pf, enum ice_reset_req reset_type) ice_pf_dis_all_vsi(pf, false); if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) - ice_ptp_prepare_for_reset(pf); + ice_ptp_prepare_for_reset(pf, reset_type); if (ice_is_feature_supported(pf, ICE_F_GNSS)) ice_gnss_exit(pf); @@ -7403,7 +7403,7 @@ static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type) * fail. */ if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) - ice_ptp_reset(pf); + ice_ptp_reset(pf, reset_type); if (ice_is_feature_supported(pf, ICE_F_GNSS)) ice_gnss_init(pf); diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 159885d48411..a9c5552dd0d3 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -2462,8 +2462,10 @@ static void ice_ptp_periodic_work(struct kthread_work *work) /** * ice_ptp_prepare_for_reset - Prepare PTP for reset * @pf: Board private structure + * @reset_type: the reset type being performed */ -void ice_ptp_prepare_for_reset(struct ice_pf *pf) +void +ice_ptp_prepare_for_reset(struct ice_pf *pf, enum ice_reset_req reset_type) { struct ice_ptp *ptp = &pf->ptp; u8 src_tmr; @@ -2478,7 +2480,7 @@ void ice_ptp_prepare_for_reset(struct ice_pf *pf) kthread_cancel_delayed_work_sync(&ptp->work); - if (test_bit(ICE_PFR_REQ, pf->state)) + if (reset_type == ICE_RESET_PFR) return; ice_ptp_release_tx_tracker(pf, &pf->ptp.port.tx); @@ -2498,8 +2500,9 @@ void ice_ptp_prepare_for_reset(struct ice_pf *pf) /** * ice_ptp_reset - Initialize PTP hardware clock support after reset * @pf: Board private structure + * @reset_type: the reset type being performed */ -void ice_ptp_reset(struct ice_pf *pf) +void ice_ptp_reset(struct ice_pf *pf, enum ice_reset_req reset_type) { struct ice_ptp *ptp = &pf->ptp; struct ice_hw *hw = &pf->hw; @@ -2509,7 +2512,7 @@ void ice_ptp_reset(struct ice_pf *pf) if (ptp->state != ICE_PTP_RESETTING) { if (ptp->state == ICE_PTP_READY) { - ice_ptp_prepare_for_reset(pf); + ice_ptp_prepare_for_reset(pf, reset_type); } else { err = -EINVAL; dev_err(ice_pf_to_dev(pf), "PTP was not initialized\n"); @@ -2517,12 +2520,9 @@ void ice_ptp_reset(struct ice_pf *pf) } } - if (test_bit(ICE_PFR_REQ, pf->state)) + if (reset_type == ICE_RESET_PFR || !ice_pf_src_tmr_owned(pf)) goto pfr; - if (!ice_pf_src_tmr_owned(pf)) - goto reset_ts; - err = ice_ptp_init_phc(hw); if (err) goto err; @@ -2566,7 +2566,6 @@ void ice_ptp_reset(struct ice_pf *pf) goto err; } -reset_ts: /* Restart the PHY timestamping block */ ice_ptp_reset_phy_timestamping(pf); diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index 674a0abe3cdd..48c0d56c0568 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -311,8 +311,9 @@ enum ice_tx_tstamp_work ice_ptp_process_ts(struct ice_pf *pf); void ice_ptp_rx_hwtstamp(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb); -void ice_ptp_reset(struct ice_pf *pf); -void ice_ptp_prepare_for_reset(struct ice_pf *pf); +void ice_ptp_reset(struct ice_pf *pf, enum ice_reset_req reset_type); +void ice_ptp_prepare_for_reset(struct ice_pf *pf, + enum ice_reset_req reset_type); void ice_ptp_init(struct ice_pf *pf); void ice_ptp_release(struct ice_pf *pf); void ice_ptp_link_change(struct ice_pf *pf, u8 port, bool linkup); @@ -343,8 +344,15 @@ static inline bool ice_ptp_process_ts(struct ice_pf *pf) static inline void ice_ptp_rx_hwtstamp(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb) { } -static inline void ice_ptp_reset(struct ice_pf *pf) { } -static inline void ice_ptp_prepare_for_reset(struct ice_pf *pf) { } +static inline void ice_ptp_reset(struct ice_pf *pf, + enum ice_reset_req reset_type) +{ +} + +static inline void ice_ptp_prepare_for_reset(struct ice_pf *pf, + enum ice_reset_req reset_type) +{ +} static inline void ice_ptp_init(struct ice_pf *pf) { } static inline void ice_ptp_release(struct ice_pf *pf) { } static inline void ice_ptp_link_change(struct ice_pf *pf, u8 port, bool linkup) From patchwork Tue Aug 29 10:40:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368803 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2FF861548A for ; Tue, 29 Aug 2023 10:41:03 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B51D21B3 for ; Tue, 29 Aug 2023 03:41:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693305661; x=1724841661; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=BdBH2lJUjIkGzweI6LRi0ejXpdeaGgcJfZ+XQnnKpXI=; b=cRULa+mRYZlr+UXDBKd+/iWWuez+GzkQebv7twfVkXut/oaoAY2WhUsX EDWLhoM8xsud0mtojZlZ2E+oOJNjRGo5DsPQGNq5obUBM3ZpjqrpBgsuD WMpX33Q98tqy0XlFt9lsA3f/oLDBKDr/JrH3XSi6tDFug2SMW9QqAq2xY 1L2o8CtBnYwgzYZhXH7b1Rqzl/wefBWylnyj2ZRoIdreBjlsfcAoQwlzq bbonjEsRiOCBBaRHYFj6FXq9PJxDczyPVUY4r/0EYGT+F+k77WqnUHWGi 156N8p8iWoUImH+FqcWRGr1rYJ4TEo7Q91kWnFeRa5j8b6pkftC2gPUiz g==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461696882" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="461696882" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 03:41:01 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229781" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229781" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:40:59 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Jacob Keller , Karol Kolacinski Subject: [PATCH v4 iwl-next 04/11] ice: rename verify_cached to has_ready_bitmap Date: Tue, 29 Aug 2023 12:40:34 +0200 Message-Id: <20230829104041.64131-5-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Jacob Keller The tx->verify_cached flag is used to inform the Tx timestamp tracking code whether it needs to verify the cached Tx timestamp value against a previous captured value. This is necessary on E810 hardware which does not have a Tx timestamp ready bitmap. In addition, we currently rely on the fact that the ice_get_phy_tx_tstamp_ready() function returns all 1s for E810 hardware. Instead of introducing a brand new flag, rename and verify_cached to has_ready_bitmap, inverting the relevant checks. Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice_ptp.c | 19 +++++++++++-------- drivers/net/ethernet/intel/ice/ice_ptp.h | 8 +++++--- 2 files changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index a9c5552dd0d3..f513bbbba9f8 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -591,9 +591,11 @@ static void ice_ptp_process_tx_tstamp(struct ice_ptp_tx *tx) hw = &pf->hw; /* Read the Tx ready status first */ - err = ice_get_phy_tx_tstamp_ready(hw, tx->block, &tstamp_ready); - if (err) - return; + if (tx->has_ready_bitmap) { + err = ice_get_phy_tx_tstamp_ready(hw, tx->block, &tstamp_ready); + if (err) + return; + } /* Drop packets if the link went down */ link_up = ptp_port->link_up; @@ -621,7 +623,8 @@ static void ice_ptp_process_tx_tstamp(struct ice_ptp_tx *tx) * If we do not, the hardware logic for generating a new * interrupt can get stuck on some devices. */ - if (!(tstamp_ready & BIT_ULL(phy_idx))) { + if (tx->has_ready_bitmap && + !(tstamp_ready & BIT_ULL(phy_idx))) { if (drop_ts) goto skip_ts_read; @@ -641,7 +644,7 @@ static void ice_ptp_process_tx_tstamp(struct ice_ptp_tx *tx) * from the last cached timestamp. If it is not, skip this for * now assuming it hasn't yet been captured by hardware. */ - if (!drop_ts && tx->verify_cached && + if (!drop_ts && !tx->has_ready_bitmap && raw_tstamp == tx->tstamps[idx].cached_tstamp) continue; @@ -651,7 +654,7 @@ static void ice_ptp_process_tx_tstamp(struct ice_ptp_tx *tx) skip_ts_read: spin_lock(&tx->lock); - if (tx->verify_cached && raw_tstamp) + if (!tx->has_ready_bitmap && raw_tstamp) tx->tstamps[idx].cached_tstamp = raw_tstamp; clear_bit(idx, tx->in_use); skb = tx->tstamps[idx].skb; @@ -895,7 +898,7 @@ ice_ptp_init_tx_e822(struct ice_pf *pf, struct ice_ptp_tx *tx, u8 port) tx->block = port / ICE_PORTS_PER_QUAD; tx->offset = (port % ICE_PORTS_PER_QUAD) * INDEX_PER_PORT_E822; tx->len = INDEX_PER_PORT_E822; - tx->verify_cached = 0; + tx->has_ready_bitmap = 1; return ice_ptp_alloc_tx_tracker(tx); } @@ -918,7 +921,7 @@ ice_ptp_init_tx_e810(struct ice_pf *pf, struct ice_ptp_tx *tx) * verify new timestamps against cached copy of the last read * timestamp. */ - tx->verify_cached = 1; + tx->has_ready_bitmap = 0; return ice_ptp_alloc_tx_tracker(tx); } diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index 48c0d56c0568..f8fd8e00bbc8 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -100,7 +100,7 @@ struct ice_perout_channel { * the last timestamp we read for a given index. If the current timestamp * value is the same as the cached value, we assume a new timestamp hasn't * been captured. This avoids reporting stale timestamps to the stack. This is - * only done if the verify_cached flag is set in ice_ptp_tx structure. + * only done if the has_ready_bitmap flag is not set in ice_ptp_tx structure. */ struct ice_tx_tstamp { struct sk_buff *skb; @@ -130,7 +130,9 @@ enum ice_tx_tstamp_work { * @init: if true, the tracker is initialized; * @calibrating: if true, the PHY is calibrating the Tx offset. During this * window, timestamps are temporarily disabled. - * @verify_cached: if true, verify new timestamp differs from last read value + * @has_ready_bitmap: if true, the hardware has a valid Tx timestamp ready + * bitmap register. If false, fall back to verifying new + * timestamp values against previously cached copy. */ struct ice_ptp_tx { spinlock_t lock; /* lock protecting in_use bitmap */ @@ -142,7 +144,7 @@ struct ice_ptp_tx { u8 len; u8 init : 1; u8 calibrating : 1; - u8 verify_cached : 1; + u8 has_ready_bitmap : 1; }; /* Quad and port information for initializing timestamp blocks */ From patchwork Tue Aug 29 10:40:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368804 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 796461548A for ; Tue, 29 Aug 2023 10:41:06 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F8221A2 for ; Tue, 29 Aug 2023 03:41:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693305663; x=1724841663; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=dvIQlIyW5/EHR6V294K7rz0uzdjKGiqNypRDnnMdsLI=; b=TrLKGRNsYcXA/puDKdljyM1q30qrtZNkSjF8pJ5o40iZ7kG4VGx0Flve WQO0hvGaFcho0JiZrPLPnsP3orvZs7gSs5D22X+CBDa/IYXh9EW/OCyQA s9M4qtyqw37GZBVF0J6VlSf2NLG5WH9uqWhgXWxpVak+kOKv+lfNwOLeK u9YuNssUrugD80L+bKznBhCmyklLkVzf30ozjRvN8f/XGdfLljqmZXal1 vlETgrdutdzVb9gpDhfsJ4Bu2R65pa0Svt07/3C4qJmn49oSt7CYE4uOb SuTQPwIiVEtHUSqEUpCXHbFZSe3f7WKf3GVlumiFGPXikYXVcMUWzZbYS w==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461696890" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="461696890" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 03:41:03 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229790" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229790" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:41:01 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Jacob Keller , Karol Kolacinski Subject: [PATCH v4 iwl-next 05/11] ice: rename ice_ptp_configure_tx_tstamp Date: Tue, 29 Aug 2023 12:40:35 +0200 Message-Id: <20230829104041.64131-6-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Jacob Keller The ice_ptp_configure_tx_tstamp function writes to PFINT_OICR_ENA to configure it with the PFINT_OICR_TX_TSYN_M bit. The name of this function is confusing because there are multiple other functions with almost identical names. Rename it to ice_ptp_cfg_tx_interrupt in order to make it more obvious to the reader what action it performs. Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice_ptp.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index f513bbbba9f8..2899fc7f8deb 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -281,11 +281,11 @@ static const char *ice_ptp_state_str(enum ice_ptp_state state) } /** - * ice_ptp_configure_tx_tstamp - Enable or disable Tx timestamp interrupt - * @pf: The PF pointer to search in + * ice_ptp_cfg_tx_interrupt - Configure Tx timestamp interrupt for the device + * @pf: Board private structure * @on: bool value for whether timestamp interrupt is enabled or disabled */ -static void ice_ptp_configure_tx_tstamp(struct ice_pf *pf, bool on) +static void ice_ptp_cfg_tx_interrupt(struct ice_pf *pf, bool on) { u32 val; @@ -320,7 +320,7 @@ static void ice_set_tx_tstamp(struct ice_pf *pf, bool on) } if (pf->ptp.tx_interrupt_mode == ICE_PTP_TX_INTERRUPT_SELF) - ice_ptp_configure_tx_tstamp(pf, on); + ice_ptp_cfg_tx_interrupt(pf, on); pf->ptp.tstamp_config.tx_type = on ? HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF; } @@ -2850,7 +2850,7 @@ static int ice_ptp_init_owner(struct ice_pf *pf) /* The clock owner for this device type handles the timestamp * interrupt for all ports. */ - ice_ptp_configure_tx_tstamp(pf, true); + ice_ptp_cfg_tx_interrupt(pf, true); /* React on all quads interrupts for E82x */ wr32(hw, PFINT_TSYN_MSK + (0x4 * hw->pf_id), (u32)0x1f); @@ -2928,7 +2928,7 @@ static int ice_ptp_init_port(struct ice_pf *pf, struct ice_ptp_port *ptp_port) * neither on own quad nor on others */ if (!ice_ptp_pf_handles_tx_interrupt(pf)) { - ice_ptp_configure_tx_tstamp(pf, false); + ice_ptp_cfg_tx_interrupt(pf, false); wr32(hw, PFINT_TSYN_MSK + (0x4 * hw->pf_id), (u32)0x0); } kthread_init_delayed_work(&ptp_port->ov_work, From patchwork Tue Aug 29 10:40:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368805 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A94791548A for ; Tue, 29 Aug 2023 10:41:07 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 302E01B3 for ; Tue, 29 Aug 2023 03:41:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693305665; x=1724841665; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VowrIuVp1hKfrPff5NmWrNfOIdMkrXiyQkMPqwuQs1U=; b=DQ47IfsJ02lSE0FFANFqJ0IfCWA15tE3GOKnjrsqc0MyOP1zq0v9PL4a DxKj9qtQ5hUU7t8j/LL3o/bAo+fLh4JEQTBnslk7/luqgLbtGsCtGFAQT WcZrAFSNqdCiwUZTZdX4vX/65MIVK6a8z4EbyqaHUTDpwN/X83anL8h8q L0lKNojHredTczOvtk352HdX3SaN/DFjl6dnNLFxBzhuDhZ63Yic85Yh2 1Ss84EfZRnrNStEiRoegWhObqNKmT/AfnCZrxOuC/7z44wBxEwgGgvPHx hkG6rTW/KQsceqowpVh2G2Qdnn8QSWH1m3Tkrs2Se3bPvqX0gmmdm3e0m w==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461696896" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="461696896" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 03:41:04 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229796" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229796" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:41:03 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Jacob Keller , Karol Kolacinski Subject: [PATCH v4 iwl-next 06/11] ice: rename ice_ptp_tx_cfg_intr Date: Tue, 29 Aug 2023 12:40:36 +0200 Message-Id: <20230829104041.64131-7-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Jacob Keller The ice_ptp_tx_cfg_intr() function sends a control queue message to configure the PHY timestamp interrupt block. This is a very similar name to a function which is used to configure the MAC Other Interrupt Cause Enable register. Rename this function to ice_ptp_cfg_phy_interrupt in order to make it more obvious to the reader what action it performs, and distinguish it from other similarly named functions. Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice_ptp.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 2899fc7f8deb..16491c2d036f 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -1341,14 +1341,14 @@ void ice_ptp_link_change(struct ice_pf *pf, u8 port, bool linkup) } /** - * ice_ptp_tx_ena_intr - Enable or disable the Tx timestamp interrupt + * ice_ptp_cfg_phy_interrupt - Configure PHY interrupt settings * @pf: PF private structure * @ena: bool value to enable or disable interrupt * @threshold: Minimum number of packets at which intr is triggered * * Utility function to enable or disable Tx timestamp interrupt and threshold */ -static int ice_ptp_tx_ena_intr(struct ice_pf *pf, bool ena, u32 threshold) +static int ice_ptp_cfg_phy_interrupt(struct ice_pf *pf, bool ena, u32 threshold) { struct ice_hw *hw = &pf->hw; int err = 0; @@ -2510,8 +2510,8 @@ void ice_ptp_reset(struct ice_pf *pf, enum ice_reset_req reset_type) struct ice_ptp *ptp = &pf->ptp; struct ice_hw *hw = &pf->hw; struct timespec64 ts; - int err, itr = 1; u64 time_diff; + int err; if (ptp->state != ICE_PTP_RESETTING) { if (ptp->state == ICE_PTP_READY) { @@ -2564,7 +2564,7 @@ void ice_ptp_reset(struct ice_pf *pf, enum ice_reset_req reset_type) if (!ice_is_e810(hw)) { /* Enable quad interrupts */ - err = ice_ptp_tx_ena_intr(pf, true, itr); + err = ice_ptp_cfg_phy_interrupt(pf, true, 1); if (err) goto err; } @@ -2813,7 +2813,7 @@ static int ice_ptp_init_owner(struct ice_pf *pf) { struct ice_hw *hw = &pf->hw; struct timespec64 ts; - int err, itr = 1; + int err; err = ice_ptp_init_phc(hw); if (err) { @@ -2856,7 +2856,7 @@ static int ice_ptp_init_owner(struct ice_pf *pf) wr32(hw, PFINT_TSYN_MSK + (0x4 * hw->pf_id), (u32)0x1f); /* Enable quad interrupts */ - err = ice_ptp_tx_ena_intr(pf, true, itr); + err = ice_ptp_cfg_phy_interrupt(pf, true, 1); if (err) goto err_exit; } From patchwork Tue Aug 29 10:40:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368806 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A95FA156C9 for ; Tue, 29 Aug 2023 10:41:09 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CEE2A1A3 for ; Tue, 29 Aug 2023 03:41:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693305666; x=1724841666; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=4hxTa4cpLnXskipo/+9L9NFOSr5JNIGX7XGEX3TNDd4=; b=FrVB7OP83XKK1FIKNqLEQFr/uECZrRjxHfJReBD+PwYTZRFuc07PomSB gBw2crcBKEtY3jKpAWT9sghA5JHqnraLbDNSzIpBuKNtLGWa8YcEbFSb1 mEKEoNVMHd2N4mba1tFts2k3HZJ7D4UzQ7+6wd17OFcLKz9wTRH0/HXJ0 NaR2JA6mHba7MSu9EL9pamPT6QBr2CVmEd9dQtJV3VgX4hrol24P0oBca Bwx8XypmrQreDgt2T6DYwuSFMcdzfvtmxQcmYOkligAqCbb0yqep4kFxP vUhec05d3YT6avjBkXRuOi4bA+5bw3HFaWryj5bZfVyq5Ld0YFsz5LamX w==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461696904" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="461696904" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 03:41:06 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229815" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229815" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:41:04 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Jacob Keller , Karol Kolacinski Subject: [PATCH v4 iwl-next 07/11] ice: factor out ice_ptp_rebuild_owner() Date: Tue, 29 Aug 2023 12:40:37 +0200 Message-Id: <20230829104041.64131-8-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Jacob Keller The ice_ptp_reset() function uses a goto to skip past clock owner operations if performing a PF reset or if the device is not the clock owner. This is a bit confusing. Factor this out into ice_ptp_rebuild_owner() instead. The ice_ptp_reset() function is called by ice_rebuild() to restore PTP functionality after a device reset. Follow the convention set by the ice_main.c file and rename this function to ice_ptp_rebuild(), in the same way that we have ice_prepare_for_reset() and ice_ptp_prepare_for_reset(). Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice_main.c | 2 +- drivers/net/ethernet/intel/ice/ice_ptp.c | 60 ++++++++++++++--------- drivers/net/ethernet/intel/ice/ice_ptp.h | 6 +-- 3 files changed, 41 insertions(+), 27 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 0ef765db008b..22255375e6e7 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -7403,7 +7403,7 @@ static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type) * fail. */ if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) - ice_ptp_reset(pf, reset_type); + ice_ptp_rebuild(pf, reset_type); if (ice_is_feature_supported(pf, ICE_F_GNSS)) ice_gnss_init(pf); diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 16491c2d036f..12824da9f3da 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -2486,6 +2486,7 @@ ice_ptp_prepare_for_reset(struct ice_pf *pf, enum ice_reset_req reset_type) if (reset_type == ICE_RESET_PFR) return; + kthread_cancel_delayed_work_sync(&pf->ptp.port.ov_work); ice_ptp_release_tx_tracker(pf, &pf->ptp.port.tx); /* Disable periodic outputs */ @@ -2501,11 +2502,13 @@ ice_ptp_prepare_for_reset(struct ice_pf *pf, enum ice_reset_req reset_type) } /** - * ice_ptp_reset - Initialize PTP hardware clock support after reset + * ice_ptp_rebuild_owner - Initialize PTP clock owner after reset * @pf: Board private structure - * @reset_type: the reset type being performed + * + * Companion function for ice_ptp_rebuild() which handles tasks that only the + * PTP clock owner instance should perform. */ -void ice_ptp_reset(struct ice_pf *pf, enum ice_reset_req reset_type) +static int ice_ptp_rebuild_owner(struct ice_pf *pf) { struct ice_ptp *ptp = &pf->ptp; struct ice_hw *hw = &pf->hw; @@ -2513,34 +2516,21 @@ void ice_ptp_reset(struct ice_pf *pf, enum ice_reset_req reset_type) u64 time_diff; int err; - if (ptp->state != ICE_PTP_RESETTING) { - if (ptp->state == ICE_PTP_READY) { - ice_ptp_prepare_for_reset(pf, reset_type); - } else { - err = -EINVAL; - dev_err(ice_pf_to_dev(pf), "PTP was not initialized\n"); - goto err; - } - } - - if (reset_type == ICE_RESET_PFR || !ice_pf_src_tmr_owned(pf)) - goto pfr; - err = ice_ptp_init_phc(hw); if (err) - goto err; + return err; /* Acquire the global hardware lock */ if (!ice_ptp_lock(hw)) { err = -EBUSY; - goto err; + return err; } /* Write the increment time value to PHY and LAN */ err = ice_ptp_write_incval(hw, ice_base_incval(pf)); if (err) { ice_ptp_unlock(hw); - goto err; + return err; } /* Write the initial Time value to PHY and LAN using the cached PHC @@ -2556,7 +2546,7 @@ void ice_ptp_reset(struct ice_pf *pf, enum ice_reset_req reset_type) err = ice_ptp_write_init(pf, &ts); if (err) { ice_ptp_unlock(hw); - goto err; + return err; } /* Release the global hardware lock */ @@ -2566,13 +2556,37 @@ void ice_ptp_reset(struct ice_pf *pf, enum ice_reset_req reset_type) /* Enable quad interrupts */ err = ice_ptp_cfg_phy_interrupt(pf, true, 1); if (err) + return err; + + ice_ptp_restart_all_phy(pf); + } + + return 0; +} + +/** + * ice_ptp_rebuild - Initialize PTP hardware clock support after reset + * @pf: Board private structure + * @reset_type: the reset type being performed + */ +void ice_ptp_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type) +{ + struct ice_ptp *ptp = &pf->ptp; + int err; + + if (ptp->state != ICE_PTP_RESETTING) { + if (ptp->state == ICE_PTP_READY) { + ice_ptp_prepare_for_reset(pf, reset_type); + } else { + err = -EINVAL; + dev_err(ice_pf_to_dev(pf), "PTP was not initialized\n"); goto err; + } } - /* Restart the PHY timestamping block */ - ice_ptp_reset_phy_timestamping(pf); + if (ice_pf_src_tmr_owned(pf) && reset_type != ICE_RESET_PFR) + ice_ptp_rebuild_owner(pf); -pfr: /* Init Tx structures */ if (ice_is_e810(&pf->hw)) { err = ice_ptp_init_tx_e810(pf, &ptp->port.tx); diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index f8fd8e00bbc8..c156b322c6e0 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -313,7 +313,7 @@ enum ice_tx_tstamp_work ice_ptp_process_ts(struct ice_pf *pf); void ice_ptp_rx_hwtstamp(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb); -void ice_ptp_reset(struct ice_pf *pf, enum ice_reset_req reset_type); +void ice_ptp_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type); void ice_ptp_prepare_for_reset(struct ice_pf *pf, enum ice_reset_req reset_type); void ice_ptp_init(struct ice_pf *pf); @@ -346,8 +346,8 @@ static inline bool ice_ptp_process_ts(struct ice_pf *pf) static inline void ice_ptp_rx_hwtstamp(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb) { } -static inline void ice_ptp_reset(struct ice_pf *pf, - enum ice_reset_req reset_type) +static inline void ice_ptp_rebuild(struct ice_pf *pf, + enum ice_reset_req reset_type) { } From patchwork Tue Aug 29 10:40:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368807 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3FC56156C9 for ; Tue, 29 Aug 2023 10:41:12 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 744821B3 for ; Tue, 29 Aug 2023 03:41:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693305668; x=1724841668; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=bXO8V1ULgZycDSoU0VymmEVwhyU6WCRUOeeK4jScNUk=; b=BjD3S9dvG/jh9C0mpPipumqB7ST4DHrY3V5ADHmyo/ZBCw2zfGvOLoe4 Z3fAw8ZDJ+8vvBTUTU9IPHB/JBlQ1BA+a9nYGHNSpbuYgn4vRLA5M8ucr Pk+RhhlBF5aWmw2+wvq/vaoNM7/ZQZ00Y/bKiUX71v7w5VmCPiGgRap6R PYqIKtmcSTtVmi9j3oe1AVbX0lKyk3T3ydc5WV+Eh/uUzWNgiIpymzmsS M2wDzPt7nHUwYqRkF0WVsYGfZ1czIWzsA/iHsteDD4PH+do2DFp5EnqI4 69qQoV211plhqFERMry1LQyvnPigxIv55tvoX3y/xcU8z/+LhvEUb3u47 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461696910" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="461696910" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 03:41:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229827" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229827" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:41:06 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Jacob Keller , Karol Kolacinski Subject: [PATCH v4 iwl-next 08/11] ice: remove ptp_tx ring parameter flag Date: Tue, 29 Aug 2023 12:40:38 +0200 Message-Id: <20230829104041.64131-9-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Jacob Keller Before performing a Tx timestamp in ice_stamp(), the driver checks a ptp_tx ring variable to see if timestamping is enabled on that ring. This value is set for all rings whenever userspace configures Tx timestamping. Ostensibly this was done to avoid wasting cycles checking other fields when timestamping has not been enabled. However, for Tx timestamps we already get an individual per-SKB flag indicating whether userspace wants to request a timestamp on that packet. We do not gain much by also having a separate flag to check for whether timestamping was enabled. In fact, the driver currently fails to restore the field after a PF reset. Because of this, if a PF reset occurs, timestamps will be disabled. Since this flag doesn't add value in the hotpath, remove it and always provide a timestamp if the SKB flag has been set. Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice_ptp.c | 14 -------------- drivers/net/ethernet/intel/ice/ice_txrx.c | 3 --- drivers/net/ethernet/intel/ice/ice_txrx.h | 1 - 3 files changed, 18 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 12824da9f3da..f2b315b18cbd 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -305,20 +305,6 @@ static void ice_ptp_cfg_tx_interrupt(struct ice_pf *pf, bool on) */ static void ice_set_tx_tstamp(struct ice_pf *pf, bool on) { - struct ice_vsi *vsi; - u16 i; - - vsi = ice_get_main_vsi(pf); - if (!vsi) - return; - - /* Set the timestamp enable flag for all the Tx rings */ - ice_for_each_txq(vsi, i) { - if (!vsi->tx_rings[i]) - continue; - vsi->tx_rings[i]->ptp_tx = on; - } - if (pf->ptp.tx_interrupt_mode == ICE_PTP_TX_INTERRUPT_SELF) ice_ptp_cfg_tx_interrupt(pf, on); diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 52d0a126eb61..9e97ea863068 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -2306,9 +2306,6 @@ ice_tstamp(struct ice_tx_ring *tx_ring, struct sk_buff *skb, if (likely(!(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP))) return; - if (!tx_ring->ptp_tx) - return; - /* Tx timestamps cannot be sampled when doing TSO */ if (first->tx_flags & ICE_TX_FLAGS_TSO) return; diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h index 166413fc33f4..daf7b9dbb143 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx.h @@ -380,7 +380,6 @@ struct ice_tx_ring { #define ICE_TX_FLAGS_RING_VLAN_L2TAG2 BIT(2) u8 flags; u8 dcb_tc; /* Traffic class of ring */ - u8 ptp_tx; } ____cacheline_internodealigned_in_smp; static inline bool ice_ring_uses_build_skb(struct ice_rx_ring *ring) From patchwork Tue Aug 29 10:40:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368808 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 337F3156C8 for ; Tue, 29 Aug 2023 10:41:13 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4507219F for ; Tue, 29 Aug 2023 03:41:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693305670; x=1724841670; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZuOf/Zu3k2qwD+EABgE2Vqa+fbd80dxj8iH2we8IU/A=; b=fpRYii5kiLKSYL3QQ/NyvXZ/KRTf2gzrG5ahwh3y6zz3oxYqqm5UDsBw Ee7UzcbcvDzHbbtBcX2r3Gy/9C1sLmpNJeKJIklDvsHaZsZTLJ/BhGNjc q3bx8h944wNQ1ZnX4SVckD0e/flV1lI8IlDJ83ln8E5Z4lylepqQ+Fq+M Fa5KhNEd1q1RTc6HejS56BnYVno8sWKGmteox3lQuq0JTQjpHelRltCcJ 7qKqqugoCDecfWwWW1pXLxErYJOJpZteqEzAsYhpgZja3Y3cuOkej0nCe 9NU5iyaGVlZSs9ESyeWRdcOnwZttKGaWiIQ0Zfia0ispopMQEINYfGzpY w==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461696918" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="461696918" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 03:41:10 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229837" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229837" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:41:08 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Jacob Keller , Karol Kolacinski Subject: [PATCH v4 iwl-next 09/11] ice: modify tstamp_config only during TS mode set Date: Tue, 29 Aug 2023 12:40:39 +0200 Message-Id: <20230829104041.64131-10-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Jacob Keller The driver stores the current Tx and Rx timestamping configuration in pf->ptp.tstamp_config. This structure is supposed to represent the currently requested configuration from userspace that we've applied to the device. The values of this structure are modified within the low level ice_set_tx_tstamp() and ice_set_rx_tstamp() functions. These functions *are* called by ice_ptp_set_timestamp_mode. However, they are also called during the driver reset and rebuild flow. Because of this, the driver overwrites user configuration during reset, preventing itself from being able to properly restore the configuration after a reset. Instead, stop modifying this saved configuration state outside of ice_ptp_set_timestamp_mode. Instead, set the values directly within this function. This avoids losing the configuration data. A following change will refactor the rebuild flow to properly restore the configuration after a PF reset. Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice_ptp.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index f2b315b18cbd..085f415e98ca 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -307,8 +307,6 @@ static void ice_set_tx_tstamp(struct ice_pf *pf, bool on) { if (pf->ptp.tx_interrupt_mode == ICE_PTP_TX_INTERRUPT_SELF) ice_ptp_cfg_tx_interrupt(pf, on); - - pf->ptp.tstamp_config.tx_type = on ? HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF; } /** @@ -331,9 +329,6 @@ static void ice_set_rx_tstamp(struct ice_pf *pf, bool on) continue; vsi->rx_rings[i]->ptp_rx = on; } - - pf->ptp.tstamp_config.rx_filter = on ? HWTSTAMP_FILTER_ALL : - HWTSTAMP_FILTER_NONE; } /** @@ -2054,9 +2049,11 @@ ice_ptp_set_timestamp_mode(struct ice_pf *pf, struct hwtstamp_config *config) switch (config->tx_type) { case HWTSTAMP_TX_OFF: ice_set_tx_tstamp(pf, false); + pf->ptp.tstamp_config.tx_type = HWTSTAMP_TX_OFF; break; case HWTSTAMP_TX_ON: ice_set_tx_tstamp(pf, true); + pf->ptp.tstamp_config.tx_type = HWTSTAMP_TX_ON; break; default: return -ERANGE; @@ -2065,6 +2062,7 @@ ice_ptp_set_timestamp_mode(struct ice_pf *pf, struct hwtstamp_config *config) switch (config->rx_filter) { case HWTSTAMP_FILTER_NONE: ice_set_rx_tstamp(pf, false); + pf->ptp.tstamp_config.rx_filter = HWTSTAMP_FILTER_NONE; break; case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: @@ -2081,6 +2079,7 @@ ice_ptp_set_timestamp_mode(struct ice_pf *pf, struct hwtstamp_config *config) case HWTSTAMP_FILTER_NTP_ALL: case HWTSTAMP_FILTER_ALL: ice_set_rx_tstamp(pf, true); + pf->ptp.tstamp_config.rx_filter = HWTSTAMP_FILTER_ALL; break; default: return -ERANGE; From patchwork Tue Aug 29 10:40:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368809 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B0F38156C8 for ; Tue, 29 Aug 2023 10:41:15 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17C661B1 for ; Tue, 29 Aug 2023 03:41:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693305672; x=1724841672; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=C+rqlJ2jQuz//uwjThKXVk/zlM1R2RfTecZuBNxLlHc=; b=NKHPBtmfScyoBT8hh2wxKBCFRY2L71jrKx6p3TvtRiInpzooyAvi2vqQ X4tjuuGLHhLzG/jAfA0QNfVgblYBtAKUrtruMX9Q94rl90/6z41/sJltc UsE3somO05EwfyTLLA5dPIQS2lEY50JWdCjcdgVMbZi59XlSX4ueUTtV5 sPBOeAQG+fzNpDi9/zz8jeolJodNC2c11owHTTkqUI6UFjR4gGX0hnFBZ csbqVWpSAlx99gX3T05TQzdoQfLbga9kR/NZji5SOQ3+FyiEtEo/NULrf tva5N2t7HKmMbjzsKSWQs6oqo9UrglP8NeXIoFQqeaNAcReUHcrNtsGzZ Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461696924" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="461696924" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 03:41:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229851" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229851" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:41:10 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Jacob Keller , Karol Kolacinski Subject: [PATCH v4 iwl-next 10/11] ice: restore timestamp configuration after reset Date: Tue, 29 Aug 2023 12:40:40 +0200 Message-Id: <20230829104041.64131-11-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Jacob Keller The driver calls ice_ptp_cfg_timestamp() during ice_ptp_prepare_for_reset() to disable timestamping while the device is resetting. It then attempts to restore timestamp configuration at the end of ice_rebuild(). However, it currently forcibly calls ice_ptp_cfg_timestamp() with a value of true when the device is not E810 and is the clock owner, while calling ice_ptp_cfg_timestamp() with a value of false for all other devices. This incorrectly forcibly disables timestamping on all ports except the clock owner. This was not detected previously due to a quirk of the LinuxPTP ptp4l application. If ptp4l detects a missing timestamp, it enters a fault state and performs recovery logic which includes executing SIOCSHWTSTAMP again, restoring the now accidentally cleared configuration. Not every application does this, and for these applications, timestamps will mysteriously stop after a PF reset, without being restored until an application restart. Fix this by replacing ice_ptp_cfg_timestamp() with two new functions: 1) ice_ptp_disable_timestamp_mode() which unconditionally disables the timestamping logic in ice_ptp_prepare_for_reset() and ice_ptp_release() 2) ice_ptp_restore_timestamp_mode() which calls ice_ptp_restore_tx_interrupt() to restore Tx timestamping configuration, calls ice_set_rx_tstamp() to restore Rx timestamping configuration, and issues an immediate TSYN_TX interrupt to ensure that timestamps which may have occurred during the device reset get processed. This obsoletes the ice_set_tx_tstamp() function which can now be safely removed. With this change, all devices should now restore Tx and Rx timestamping functionality correctly after a PF reset without application intervention. Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice_main.c | 10 +--- drivers/net/ethernet/intel/ice/ice_ptp.c | 72 +++++++++++++++++------ drivers/net/ethernet/intel/ice/ice_ptp.h | 4 +- 3 files changed, 59 insertions(+), 27 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 22255375e6e7..6425237b2bc2 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -7415,14 +7415,8 @@ static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type) goto err_vsi_rebuild; } - /* configure PTP timestamping after VSI rebuild */ - if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags)) { - if (pf->ptp.tx_interrupt_mode == ICE_PTP_TX_INTERRUPT_SELF) - ice_ptp_cfg_timestamp(pf, false); - else if (pf->ptp.tx_interrupt_mode == ICE_PTP_TX_INTERRUPT_ALL) - /* for E82x PHC owner always need to have interrupts */ - ice_ptp_cfg_timestamp(pf, true); - } + /* Restore timestamp mode settings after VSI rebuild */ + ice_ptp_restore_timestamp_mode(pf); err = ice_vsi_rebuild_by_type(pf, ICE_VSI_SWITCHDEV_CTRL); if (err) { diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 085f415e98ca..f9df35ebaff4 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -299,14 +299,27 @@ static void ice_ptp_cfg_tx_interrupt(struct ice_pf *pf, bool on) } /** - * ice_set_tx_tstamp - Enable or disable Tx timestamping - * @pf: The PF pointer to search in - * @on: bool value for whether timestamps are enabled or disabled + * ice_ptp_restore_tx_interrupt - Restore Tx timestamp interrupt after reset + * @pf: Board private structure */ -static void ice_set_tx_tstamp(struct ice_pf *pf, bool on) +static void ice_ptp_restore_tx_interrupt(struct ice_pf *pf) { - if (pf->ptp.tx_interrupt_mode == ICE_PTP_TX_INTERRUPT_SELF) - ice_ptp_cfg_tx_interrupt(pf, on); + bool enable; + + switch (pf->ptp.tx_interrupt_mode) { + case ICE_PTP_TX_INTERRUPT_ALL: + enable = true; + break; + case ICE_PTP_TX_INTERRUPT_NONE: + enable = false; + break; + case ICE_PTP_TX_INTERRUPT_SELF: + default: + enable = pf->ptp.tstamp_config.tx_type == HWTSTAMP_TX_ON; + break; + } + + ice_ptp_cfg_tx_interrupt(pf, enable); } /** @@ -332,17 +345,41 @@ static void ice_set_rx_tstamp(struct ice_pf *pf, bool on) } /** - * ice_ptp_cfg_timestamp - Configure timestamp for init/deinit + * ice_ptp_disable_timestamp_mode - Disable current timestamp mode * @pf: Board private structure - * @ena: bool value to enable or disable time stamp * - * This function will configure timestamping during PTP initialization - * and deinitialization + * Called during preparation for reset to temporarily disable timestamping on + * the device. Called during remove to disable timestamping while cleaning up + * driver resources. */ -void ice_ptp_cfg_timestamp(struct ice_pf *pf, bool ena) +static void ice_ptp_disable_timestamp_mode(struct ice_pf *pf) { - ice_set_tx_tstamp(pf, ena); - ice_set_rx_tstamp(pf, ena); + ice_ptp_cfg_tx_interrupt(pf, false); + ice_set_rx_tstamp(pf, false); +} + +/** + * ice_ptp_restore_timestamp_mode - Restore timestamp configuration + * @pf: Board private structure + * + * Called at the end of rebuild to restore timestamp configuration after + * a device reset. + */ +void ice_ptp_restore_timestamp_mode(struct ice_pf *pf) +{ + struct ice_hw *hw = &pf->hw; + bool enable_rx; + + ice_ptp_restore_tx_interrupt(pf); + + enable_rx = pf->ptp.tstamp_config.rx_filter == HWTSTAMP_FILTER_ALL; + ice_set_rx_tstamp(pf, enable_rx); + + /* Trigger an immediate software interrupt to ensure that timestamps + * which occurred during reset are handled now. + */ + wr32(hw, PFINT_OICR, PFINT_OICR_TSYN_TX_M); + ice_flush(hw); } /** @@ -2048,11 +2085,9 @@ ice_ptp_set_timestamp_mode(struct ice_pf *pf, struct hwtstamp_config *config) { switch (config->tx_type) { case HWTSTAMP_TX_OFF: - ice_set_tx_tstamp(pf, false); pf->ptp.tstamp_config.tx_type = HWTSTAMP_TX_OFF; break; case HWTSTAMP_TX_ON: - ice_set_tx_tstamp(pf, true); pf->ptp.tstamp_config.tx_type = HWTSTAMP_TX_ON; break; default: @@ -2085,6 +2120,9 @@ ice_ptp_set_timestamp_mode(struct ice_pf *pf, struct hwtstamp_config *config) return -ERANGE; } + /* Make sure interrupt settings are restored */ + ice_ptp_restore_tx_interrupt(pf); + return 0; } @@ -2464,7 +2502,7 @@ ice_ptp_prepare_for_reset(struct ice_pf *pf, enum ice_reset_req reset_type) ptp->state = ICE_PTP_RESETTING; /* Disable timestamping for both Tx and Rx */ - ice_ptp_cfg_timestamp(pf, false); + ice_ptp_disable_timestamp_mode(pf); kthread_cancel_delayed_work_sync(&ptp->work); @@ -3113,7 +3151,7 @@ void ice_ptp_release(struct ice_pf *pf) pf->ptp.state = ICE_PTP_UNINIT; /* Disable timestamping for both Tx and Rx */ - ice_ptp_cfg_timestamp(pf, false); + ice_ptp_disable_timestamp_mode(pf); ice_ptp_remove_auxbus_device(pf); diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index c156b322c6e0..c0c8ef4de70f 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -304,7 +304,7 @@ int ice_ptp_clock_index(struct ice_pf *pf); struct ice_pf; int ice_ptp_set_ts_config(struct ice_pf *pf, struct ifreq *ifr); int ice_ptp_get_ts_config(struct ice_pf *pf, struct ifreq *ifr); -void ice_ptp_cfg_timestamp(struct ice_pf *pf, bool ena); +void ice_ptp_restore_timestamp_mode(struct ice_pf *pf); void ice_ptp_extts_event(struct ice_pf *pf); s8 ice_ptp_request_ts(struct ice_ptp_tx *tx, struct sk_buff *skb); @@ -330,7 +330,7 @@ static inline int ice_ptp_get_ts_config(struct ice_pf *pf, struct ifreq *ifr) return -EOPNOTSUPP; } -static inline void ice_ptp_cfg_timestamp(struct ice_pf *pf, bool ena) { } +static inline void ice_ptp_restore_timestamp_mode(struct ice_pf *pf) { } static inline void ice_ptp_extts_event(struct ice_pf *pf) { } static inline s8 From patchwork Tue Aug 29 10:40:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13368810 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8CADD156C8 for ; Tue, 29 Aug 2023 10:41:16 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CAD911A4 for ; Tue, 29 Aug 2023 03:41:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693305673; x=1724841673; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=lMLK+r4px6A8YKQ01i0GxE+1NW6ncI5cNHaegedXoo0=; b=LFSyfsOq2nNRv6/khB8KpnCcUa/B+ZGH/K8+0Kxw0UT4jUvm2onWRupI CaLFwTAkyKQLP0G8bm+dDSeY0hbcaXzhWaYFJrmkkw90waJ85mWXYBwtY MrvEv+44yZUzUJB3ycnzrN7nK5eOwLlGA9hQ8un/WUo4hDL7V2i+J6+AM 08XGQBTTJ18D1okO51iCVDLJ6jBLz5R7pJvmTlbGna7JyzwO9CvbdnZoU YsRFQhfilId/SAMB20Gl4H1kBAUFDOzQyxXVx9OncgNezzFNZ5aJrYmQC viJ8wmWjtdGglXUSmgAIufchfz/GRew71cw3s6GYPF6GY8AVWcLkBshOV Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="461696931" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="461696931" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2023 03:41:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10816"; a="853229862" X-IronPort-AV: E=Sophos;i="6.02,210,1688454000"; d="scan'208";a="853229862" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by fmsmga002.fm.intel.com with ESMTP; 29 Aug 2023 03:41:11 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, anthony.l.nguyen@intel.com, jesse.brandeburg@intel.com, Jacob Keller , Karol Kolacinski Subject: [PATCH v4 iwl-next 11/11] ice: stop destroying and reinitalizing Tx tracker during reset Date: Tue, 29 Aug 2023 12:40:41 +0200 Message-Id: <20230829104041.64131-12-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230829104041.64131-1-karol.kolacinski@intel.com> References: <20230829104041.64131-1-karol.kolacinski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Jacob Keller The ice driver currently attempts to destroy and re-initialize the Tx timestamp tracker during the reset flow. The release of the Tx tracker only happened during CORE reset or GLOBAL reset. The ice_ptp_rebuild() function always calls the ice_ptp_init_tx function which will allocate a new tracker data structure, resulting in memory leaks during PF reset. Certainly the driver should not be allocating a new tracker without removing the old tracker data, as this results in a memory leak. Additionally, there's no reason to remove the tracker memory during a reset. Remove this logic from the reset and rebuild flow. Instead of releasing the Tx tracker, flush outstanding timestamps just before we reset the PHY timestamp block in ice_ptp_cfg_phy_interrupt(). Signed-off-by: Jacob Keller Signed-off-by: Karol Kolacinski --- drivers/net/ethernet/intel/ice/ice_ptp.c | 33 +++++++++++++++--------- 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index f9df35ebaff4..a228d62f72c0 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -868,6 +868,22 @@ ice_ptp_mark_tx_tracker_stale(struct ice_ptp_tx *tx) spin_unlock(&tx->lock); } +/** + * ice_ptp_flush_all_tx_tracker - Flush all timestamp trackers on this clock + * @pf: Board private structure + * + * Called by the clock owner to flush all the Tx timestamp trackers associated + * with the clock. + */ +static void +ice_ptp_flush_all_tx_tracker(struct ice_pf *pf) +{ + struct ice_ptp_port *port; + + list_for_each_entry(port, &pf->ptp.ports_owner.ports, list_member) + ice_ptp_flush_tx_tracker(ptp_port_to_pf(port), &port->tx); +} + /** * ice_ptp_release_tx_tracker - Release allocated memory for Tx tracker * @pf: Board private structure @@ -2575,6 +2591,11 @@ static int ice_ptp_rebuild_owner(struct ice_pf *pf) /* Release the global hardware lock */ ice_ptp_unlock(hw); + /* Flush software tracking of any outstanding timestamps since we're + * about to flush the PHY timestamp block. + */ + ice_ptp_flush_all_tx_tracker(pf); + if (!ice_is_e810(hw)) { /* Enable quad interrupts */ err = ice_ptp_cfg_phy_interrupt(pf, true, 1); @@ -2610,18 +2631,6 @@ void ice_ptp_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type) if (ice_pf_src_tmr_owned(pf) && reset_type != ICE_RESET_PFR) ice_ptp_rebuild_owner(pf); - /* Init Tx structures */ - if (ice_is_e810(&pf->hw)) { - err = ice_ptp_init_tx_e810(pf, &ptp->port.tx); - } else { - kthread_init_delayed_work(&ptp->port.ov_work, - ice_ptp_wait_for_offsets); - err = ice_ptp_init_tx_e822(pf, &ptp->port.tx, - ptp->port.port_num); - } - if (err) - goto err; - ptp->state = ICE_PTP_READY; /* Start periodic work going */