From patchwork Mon Jan 8 12:47:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 13513446 X-Patchwork-Delegate: kuba@kernel.org Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (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 29E8E40C1C for ; Mon, 8 Jan 2024 12:47:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="cRpCuNm7" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1704718055; x=1736254055; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=T7NJs1dqOd3uXBhv8xn+FVY7s9i0s30QNJ8L/LVK3So=; b=cRpCuNm7E76FAyg6HgHJ6JjWkcWgLzD/jW5aJSOPiPvdpNIai1YsJJpW RVAQAq1CQe5hI/5cySYCQsLc++OEa23E55umHbRvSjFx3S5owc4IkQVVH TFdmHr2VKJNBZG1paAMdh5lJruWEdz1Pgx8oJkvbRZlyPOeqAlze86b/M q6hzTZiHhyfNfGZTYZHMYIj3/PzYBmgvuYjzpfCAyU1LO0NhiXyTxuGUs YlKbvYqXTE4fCxKp8iH+pw1cFRPYoxwXeLs8jlHDaAb0xy02zTgl1fgST 5THgQAm9sdZd5zYEPP4p7BpOlFtmZcQY5DDFrUJOrYu/N6GItxGxXPSpe Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10946"; a="11359592" X-IronPort-AV: E=Sophos;i="6.04,341,1695711600"; d="scan'208";a="11359592" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jan 2024 04:47:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10946"; a="904791340" X-IronPort-AV: E=Sophos;i="6.04,341,1695711600"; d="scan'208";a="904791340" Received: from kkolacin-desk1.igk.intel.com ([10.102.102.152]) by orsmga004.jf.intel.com with ESMTP; 08 Jan 2024 04:47:32 -0800 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 v5 iwl-next 5/6] ice: factor out ice_ptp_rebuild_owner() Date: Mon, 8 Jan 2024 13:47:16 +0100 Message-Id: <20240108124717.1845481-6-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240108124717.1845481-1-karol.kolacinski@intel.com> References: <20240108124717.1845481-1-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-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 Reviewed-by: Jacob Keller Tested-by: Pucha Himasekhar Reddy (A Contingent worker at Intel) --- drivers/net/ethernet/intel/ice/ice_main.c | 2 +- drivers/net/ethernet/intel/ice/ice_ptp.c | 66 ++++++++++++++--------- drivers/net/ethernet/intel/ice/ice_ptp.h | 6 +-- 3 files changed, 44 insertions(+), 30 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index a14e8734cc27..1fa3f40743f5 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -7554,7 +7554,7 @@ 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 fe2d8389627b..8a589f853e96 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -2665,11 +2665,13 @@ void 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; @@ -2677,34 +2679,21 @@ 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 @@ -2720,7 +2709,7 @@ 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 */ @@ -2729,11 +2718,41 @@ 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_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; + } + } + + if (ice_pf_src_tmr_owned(pf) && reset_type != ICE_RESET_PFR) { + err = ice_ptp_rebuild_owner(pf); if (err) goto err; } -pfr: /* Init Tx structures */ if (ice_is_e810(&pf->hw)) { err = ice_ptp_init_tx_e810(pf, &ptp->port.tx); @@ -2748,11 +2767,6 @@ void ice_ptp_reset(struct ice_pf *pf, enum ice_reset_req reset_type) ptp->state = ICE_PTP_READY; - /* Restart the PHY timestamping block */ - if (!test_bit(ICE_PFR_REQ, pf->state) && - ice_pf_src_tmr_owned(pf)) - ice_ptp_restart_all_phy(pf); - /* Start periodic work going */ kthread_queue_delayed_work(ptp->kworker, &ptp->work, 0); diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index aa7a5588d11d..3af20025043a 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -316,7 +316,7 @@ enum ice_tx_tstamp_work ice_ptp_process_ts(struct ice_pf *pf); u64 ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, const struct ice_pkt_ctx *pkt_ctx); -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); @@ -358,8 +358,8 @@ ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, return 0; } -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) { }