From patchwork Tue Mar 15 06:17:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raju Lakkaraju - I30499 X-Patchwork-Id: 12781087 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6DEA1C433F5 for ; Tue, 15 Mar 2022 06:17:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238534AbiCOGSj (ORCPT ); Tue, 15 Mar 2022 02:18:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40418 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345161AbiCOGSg (ORCPT ); Tue, 15 Mar 2022 02:18:36 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D26964A3F6 for ; Mon, 14 Mar 2022 23:17:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1647325039; x=1678861039; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=qbRc/ogE8uVr9+wZOn0Q1cmhnBkZNCp8HID8ntjHLqE=; b=Jh77qd5KOTCLaKLOzXUtqez5AjemKblRLRBKrpSJXqX9l0lmIJWlXIx4 G8Ttfr61p0GE3SvhBGPpYRMA4relmN8nfBhoXuDf9OGLTDMOkgq2Xo/Jp /5UfwhnXjoYmGVYkYNA2GbiRS20I/Oe5d1a8yR9yLLKPMAlb7WWQGWMtw thAjLzO8kJpF2r0k9mXHoHxWoPH7WMmiRFU7MOrgBEncGO7PEQMLQoNyr mw5V31h+v757xXxvELGFOAsk9r/U78Azo++HW1j7DMBL5ku+R6yOFmdbi o/LFVU+a+gF88MKZSMRfT92FyfkcLCfFYwMzM780ulmec09eOoDS1gym0 g==; X-IronPort-AV: E=Sophos;i="5.90,182,1643698800"; d="scan'208";a="88938872" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa6.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 14 Mar 2022 23:17:19 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Mon, 14 Mar 2022 23:17:18 -0700 Received: from localhost.localdomain (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 14 Mar 2022 23:17:16 -0700 From: Raju Lakkaraju To: CC: , , , Subject: [PATCH net-next 4/5] net: lan743x: Add support for PTP-IO Event Input External Timestamp (extts) Date: Tue, 15 Mar 2022 11:47:00 +0530 Message-ID: <20220315061701.3006-5-Raju.Lakkaraju@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220315061701.3006-1-Raju.Lakkaraju@microchip.com> References: <20220315061701.3006-1-Raju.Lakkaraju@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org PTP-IOs block provides for time stamping PTP-IO input events. PTP-IOs are numbered from 0 to 11. When a PTP-IO is enabled by the corresponding bit in the PTP-IO Capture Configuration Register, a rising or falling edge, respectively, will capture the 1588 Local Time Counter Signed-off-by: Raju Lakkaraju Reported-by: kernel test robot Reported-by: kernel test robot --- drivers/net/ethernet/microchip/lan743x_main.h | 73 ++++ drivers/net/ethernet/microchip/lan743x_ptp.c | 329 ++++++++++++++++-- drivers/net/ethernet/microchip/lan743x_ptp.h | 9 + 3 files changed, 375 insertions(+), 36 deletions(-) diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/ethernet/microchip/lan743x_main.h index d1036a323c52..9c528705866f 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.h +++ b/drivers/net/ethernet/microchip/lan743x_main.h @@ -358,8 +358,18 @@ #define PTP_GENERAL_CONFIG_RELOAD_ADD_X_(channel) (BIT((channel) << 2)) #define PTP_INT_STS (0x0A08) +#define PTP_INT_IO_FE_MASK_ GENMASK(31, 24) +#define PTP_INT_IO_FE_SHIFT_ (24) +#define PTP_INT_IO_FE_SET_(channel) BIT(24 + (channel)) +#define PTP_INT_IO_RE_MASK_ GENMASK(23, 16) +#define PTP_INT_IO_RE_SHIFT_ (16) +#define PTP_INT_IO_RE_SET_(channel) BIT(16 + (channel)) #define PTP_INT_EN_SET (0x0A0C) +#define PTP_INT_EN_FE_EN_SET_(channel) BIT(24 + (channel)) +#define PTP_INT_EN_RE_EN_SET_(channel) BIT(16 + (channel)) #define PTP_INT_EN_CLR (0x0A10) +#define PTP_INT_EN_FE_EN_CLR_(channel) BIT(24 + (channel)) +#define PTP_INT_EN_RE_EN_CLR_(channel) BIT(16 + (channel)) #define PTP_INT_BIT_TX_SWTS_ERR_ BIT(13) #define PTP_INT_BIT_TX_TS_ BIT(12) #define PTP_INT_BIT_TIMER_B_ BIT(1) @@ -377,6 +387,16 @@ #define PTP_CLOCK_TARGET_NS_X(channel) (0x0A34 + ((channel) << 4)) #define PTP_CLOCK_TARGET_RELOAD_SEC_X(channel) (0x0A38 + ((channel) << 4)) #define PTP_CLOCK_TARGET_RELOAD_NS_X(channel) (0x0A3C + ((channel) << 4)) +#define PTP_LTC_SET_SEC_HI (0x0A50) +#define PTP_LTC_SET_SEC_HI_SEC_47_32_MASK_ GENMASK(15, 0) +#define PTP_VERSION (0x0A54) +#define PTP_VERSION_TX_UP_MASK_ GENMASK(31, 24) +#define PTP_VERSION_TX_LO_MASK_ GENMASK(23, 16) +#define PTP_VERSION_RX_UP_MASK_ GENMASK(15, 8) +#define PTP_VERSION_RX_LO_MASK_ GENMASK(7, 0) +#define PTP_IO_SEL (0x0A58) +#define PTP_IO_SEL_MASK_ GENMASK(10, 8) +#define PTP_IO_SEL_SHIFT_ (8) #define PTP_LATENCY (0x0A5C) #define PTP_LATENCY_TX_SET_(tx_latency) (((u32)(tx_latency)) << 16) #define PTP_LATENCY_RX_SET_(rx_latency) \ @@ -401,6 +421,59 @@ #define PTP_TX_MSG_HEADER_MSG_TYPE_ (0x000F0000) #define PTP_TX_MSG_HEADER_MSG_TYPE_SYNC_ (0x00000000) +#define PTP_TX_CAP_INFO (0x0AB8) +#define PTP_TX_CAP_INFO_TX_CH_MASK_ GENMASK(1, 0) +#define PTP_TX_DOMAIN (0x0ABC) +#define PTP_TX_DOMAIN_MASK_ GENMASK(23, 16) +#define PTP_TX_DOMAIN_RANGE_EN_ BIT(15) +#define PTP_TX_DOMAIN_RANGE_MASK_ GENMASK(7, 0) +#define PTP_TX_SDOID (0x0AC0) +#define PTP_TX_SDOID_MASK_ GENMASK(23, 16) +#define PTP_TX_SDOID_RANGE_EN_ BIT(15) +#define PTP_TX_SDOID_11_0_MASK_ GENMASK(7, 0) +#define PTP_IO_CAP_CONFIG (0x0AC4) +#define PTP_IO_CAP_CONFIG_LOCK_FE_(channel) BIT(24 + (channel)) +#define PTP_IO_CAP_CONFIG_LOCK_RE_(channel) BIT(16 + (channel)) +#define PTP_IO_CAP_CONFIG_FE_CAP_EN_(channel) BIT(8 + (channel)) +#define PTP_IO_CAP_CONFIG_RE_CAP_EN_(channel) BIT(0 + (channel)) +#define PTP_IO_RE_LTC_SEC_CAP_X (0x0AC8) +#define PTP_IO_RE_LTC_NS_CAP_X (0x0ACC) +#define PTP_IO_FE_LTC_SEC_CAP_X (0x0AD0) +#define PTP_IO_FE_LTC_NS_CAP_X (0x0AD4) +#define PTP_IO_EVENT_OUTPUT_CFG (0x0AD8) +#define PTP_IO_EVENT_OUTPUT_CFG_SEL_(channel) BIT(16 + (channel)) +#define PTP_IO_EVENT_OUTPUT_CFG_EN_(channel) BIT(0 + (channel)) +#define PTP_IO_PIN_CFG (0x0ADC) +#define PTP_IO_PIN_CFG_OBUF_TYPE_(channel) BIT(0 + (channel)) +#define PTP_LTC_RD_SEC_HI (0x0AF0) +#define PTP_LTC_RD_SEC_HI_SEC_47_32_MASK_ GENMASK(15, 0) +#define PTP_LTC_RD_SEC_LO (0x0AF4) +#define PTP_LTC_RD_NS (0x0AF8) +#define PTP_LTC_RD_NS_29_0_MASK_ GENMASK(29, 0) +#define PTP_LTC_RD_SUBNS (0x0AFC) +#define PTP_RX_USER_MAC_HI (0x0B00) +#define PTP_RX_USER_MAC_HI_47_32_MASK_ GENMASK(15, 0) +#define PTP_RX_USER_MAC_LO (0x0B04) +#define PTP_RX_USER_IP_ADDR_0 (0x0B20) +#define PTP_RX_USER_IP_ADDR_1 (0x0B24) +#define PTP_RX_USER_IP_ADDR_2 (0x0B28) +#define PTP_RX_USER_IP_ADDR_3 (0x0B2C) +#define PTP_RX_USER_IP_MASK_0 (0x0B30) +#define PTP_RX_USER_IP_MASK_1 (0x0B34) +#define PTP_RX_USER_IP_MASK_2 (0x0B38) +#define PTP_RX_USER_IP_MASK_3 (0x0B3C) +#define PTP_TX_USER_MAC_HI (0x0B40) +#define PTP_TX_USER_MAC_HI_47_32_MASK_ GENMASK(15, 0) +#define PTP_TX_USER_MAC_LO (0x0B44) +#define PTP_TX_USER_IP_ADDR_0 (0x0B60) +#define PTP_TX_USER_IP_ADDR_1 (0x0B64) +#define PTP_TX_USER_IP_ADDR_2 (0x0B68) +#define PTP_TX_USER_IP_ADDR_3 (0x0B6C) +#define PTP_TX_USER_IP_MASK_0 (0x0B70) +#define PTP_TX_USER_IP_MASK_1 (0x0B74) +#define PTP_TX_USER_IP_MASK_2 (0x0B78) +#define PTP_TX_USER_IP_MASK_3 (0x0B7C) + #define DMAC_CFG (0xC00) #define DMAC_CFG_COAL_EN_ BIT(16) #define DMAC_CFG_CH_ARB_SEL_RX_HIGH_ (0x00000000) diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.c b/drivers/net/ethernet/microchip/lan743x_ptp.c index ec082594bbbd..9fffce5baade 100644 --- a/drivers/net/ethernet/microchip/lan743x_ptp.c +++ b/drivers/net/ethernet/microchip/lan743x_ptp.c @@ -25,6 +25,18 @@ static void lan743x_ptp_clock_set(struct lan743x_adapter *adapter, u32 seconds, u32 nano_seconds, u32 sub_nano_seconds); +static int lan743x_get_channel(u32 ch_map) +{ + int idx; + + for (idx = 0; idx < 32; idx++) { + if (ch_map & (0x1 << idx)) + return idx; + } + + return -EINVAL; +} + int lan743x_gpio_init(struct lan743x_adapter *adapter) { struct lan743x_gpio *gpio = &adapter->gpio; @@ -179,6 +191,8 @@ static void lan743x_ptp_release_event_ch(struct lan743x_adapter *adapter, static void lan743x_ptp_clock_get(struct lan743x_adapter *adapter, u32 *seconds, u32 *nano_seconds, u32 *sub_nano_seconds); +static void lan743x_ptp_io_clock_get(struct lan743x_adapter *adapter, + u32 *sec, u32 *nsec, u32 *sub_nsec); static void lan743x_ptp_clock_step(struct lan743x_adapter *adapter, s64 time_step_ns); @@ -407,7 +421,10 @@ static int lan743x_ptpci_gettime64(struct ptp_clock_info *ptpci, u32 nano_seconds = 0; u32 seconds = 0; - lan743x_ptp_clock_get(adapter, &seconds, &nano_seconds, NULL); + if (adapter->is_pci11x1x) + lan743x_ptp_io_clock_get(adapter, &seconds, &nano_seconds, NULL); + else + lan743x_ptp_clock_get(adapter, &seconds, &nano_seconds, NULL); ts->tv_sec = seconds; ts->tv_nsec = nano_seconds; @@ -671,6 +688,110 @@ static int lan743x_ptp_perout(struct lan743x_adapter *adapter, int on, return ret; } +static void lan743x_ptp_io_extts_off(struct lan743x_adapter *adapter, + u32 index) +{ + struct lan743x_ptp *ptp = &adapter->ptp; + struct lan743x_extts *extts; + int val; + + extts = &ptp->extts[index]; + /* PTP Interrupt Enable Clear Register */ + if (extts->flags & PTP_FALLING_EDGE) + val = PTP_INT_EN_FE_EN_CLR_(index); + else + val = PTP_INT_EN_RE_EN_CLR_(index); + lan743x_csr_write(adapter, PTP_INT_EN_CLR, val); + + /* Disables PTP-IO edge lock */ + val = lan743x_csr_read(adapter, PTP_IO_CAP_CONFIG); + if (extts->flags & PTP_FALLING_EDGE) { + val &= ~PTP_IO_CAP_CONFIG_LOCK_FE_(index); + val &= ~PTP_IO_CAP_CONFIG_FE_CAP_EN_(index); + } else { + val &= ~PTP_IO_CAP_CONFIG_LOCK_RE_(index); + val &= ~PTP_IO_CAP_CONFIG_RE_CAP_EN_(index); + } + lan743x_csr_write(adapter, PTP_IO_CAP_CONFIG, val); + + /* PTP-IO De-select register */ + val = lan743x_csr_read(adapter, PTP_IO_SEL); + val &= ~PTP_IO_SEL_MASK_; + lan743x_csr_write(adapter, PTP_IO_SEL, val); + + /* Clear timestamp */ + memset(&extts->ts, 0, sizeof(struct timespec64)); +} + +static int lan743x_ptp_io_event_cap_en(struct lan743x_adapter *adapter, + u32 flags, u32 channel) +{ + struct lan743x_ptp *ptp = &adapter->ptp; + int val; + + if ((flags & PTP_EXTTS_EDGES) == PTP_EXTTS_EDGES) + return -EOPNOTSUPP; + + mutex_lock(&ptp->command_lock); + /* PTP-IO Event Capture Enable */ + val = lan743x_csr_read(adapter, PTP_IO_CAP_CONFIG); + if (flags & PTP_FALLING_EDGE) { + val &= ~PTP_IO_CAP_CONFIG_LOCK_RE_(channel); + val &= ~PTP_IO_CAP_CONFIG_RE_CAP_EN_(channel); + val |= PTP_IO_CAP_CONFIG_LOCK_FE_(channel); + val |= PTP_IO_CAP_CONFIG_FE_CAP_EN_(channel); + } else { + /* Rising eventing as Default */ + val &= ~PTP_IO_CAP_CONFIG_LOCK_FE_(channel); + val &= ~PTP_IO_CAP_CONFIG_FE_CAP_EN_(channel); + val |= PTP_IO_CAP_CONFIG_LOCK_RE_(channel); + val |= PTP_IO_CAP_CONFIG_RE_CAP_EN_(channel); + } + lan743x_csr_write(adapter, PTP_IO_CAP_CONFIG, val); + + /* PTP-IO Select */ + val = lan743x_csr_read(adapter, PTP_IO_SEL); + val &= ~PTP_IO_SEL_MASK_; + val |= channel << PTP_IO_SEL_SHIFT_; + lan743x_csr_write(adapter, PTP_IO_SEL, val); + + /* PTP Interrupt Enable Register */ + if (flags & PTP_FALLING_EDGE) + val = PTP_INT_EN_FE_EN_SET_(channel); + else + val = PTP_INT_EN_RE_EN_SET_(channel); + lan743x_csr_write(adapter, PTP_INT_EN_SET, val); + + mutex_unlock(&ptp->command_lock); + + return 0; +} + +static int lan743x_ptp_io_extts(struct lan743x_adapter *adapter, int on, + struct ptp_extts_request *extts_request) +{ + struct lan743x_ptp *ptp = &adapter->ptp; + u32 flags = extts_request->flags; + u32 index = extts_request->index; + struct lan743x_extts *extts; + int extts_pin; + int ret = 0; + + extts = &ptp->extts[index]; + + if (on) { + extts_pin = ptp_find_pin(ptp->ptp_clock, PTP_PF_EXTTS, index); + if (extts_pin < 0) + return -EBUSY; + + ret = lan743x_ptp_io_event_cap_en(adapter, flags, index); + } else { + lan743x_ptp_io_extts_off(adapter, index); + } + + return ret; +} + static int lan743x_ptpci_enable(struct ptp_clock_info *ptpci, struct ptp_clock_request *request, int on) { @@ -682,6 +803,9 @@ static int lan743x_ptpci_enable(struct ptp_clock_info *ptpci, if (request) { switch (request->type) { case PTP_CLK_REQ_EXTTS: + if (request->extts.index < ptpci->n_ext_ts) + return lan743x_ptp_io_extts(adapter, on, + &request->extts); return -EINVAL; case PTP_CLK_REQ_PEROUT: if (request->perout.index < ptpci->n_per_out) @@ -715,8 +839,8 @@ static int lan743x_ptpci_verify_pin_config(struct ptp_clock_info *ptp, switch (func) { case PTP_PF_NONE: case PTP_PF_PEROUT: - break; case PTP_PF_EXTTS: + break; case PTP_PF_PHYSYNC: default: result = -1; @@ -725,6 +849,33 @@ static int lan743x_ptpci_verify_pin_config(struct ptp_clock_info *ptp, return result; } +static void lan743x_ptp_io_event_clock_get(struct lan743x_adapter *adapter, + bool fe, u8 channel, + struct timespec64 *ts) +{ + struct lan743x_ptp *ptp = &adapter->ptp; + struct lan743x_extts *extts; + u32 sec, nsec; + + mutex_lock(&ptp->command_lock); + if (fe) { + sec = lan743x_csr_read(adapter, PTP_IO_FE_LTC_SEC_CAP_X); + nsec = lan743x_csr_read(adapter, PTP_IO_FE_LTC_NS_CAP_X); + } else { + sec = lan743x_csr_read(adapter, PTP_IO_RE_LTC_SEC_CAP_X); + nsec = lan743x_csr_read(adapter, PTP_IO_RE_LTC_NS_CAP_X); + } + + mutex_unlock(&ptp->command_lock); + + /* Update Local timestamp */ + extts = &ptp->extts[channel]; + extts->ts.tv_sec = sec; + extts->ts.tv_nsec = nsec; + ts->tv_sec = sec; + ts->tv_nsec = nsec; +} + static long lan743x_ptpci_do_aux_work(struct ptp_clock_info *ptpci) { struct lan743x_ptp *ptp = @@ -733,41 +884,114 @@ static long lan743x_ptpci_do_aux_work(struct ptp_clock_info *ptpci) container_of(ptp, struct lan743x_adapter, ptp); u32 cap_info, cause, header, nsec, seconds; bool new_timestamp_available = false; + struct ptp_clock_event ptp_event; + struct timespec64 ts; + int ptp_int_sts; int count = 0; + int channel; + s64 ns; - while ((count < 100) && - (lan743x_csr_read(adapter, PTP_INT_STS) & PTP_INT_BIT_TX_TS_)) { + ptp_int_sts = lan743x_csr_read(adapter, PTP_INT_STS); + while ((count < 100) && ptp_int_sts) { count++; - cap_info = lan743x_csr_read(adapter, PTP_CAP_INFO); - - if (PTP_CAP_INFO_TX_TS_CNT_GET_(cap_info) > 0) { - seconds = lan743x_csr_read(adapter, - PTP_TX_EGRESS_SEC); - nsec = lan743x_csr_read(adapter, PTP_TX_EGRESS_NS); - cause = (nsec & - PTP_TX_EGRESS_NS_CAPTURE_CAUSE_MASK_); - header = lan743x_csr_read(adapter, - PTP_TX_MSG_HEADER); - - if (cause == PTP_TX_EGRESS_NS_CAPTURE_CAUSE_SW_) { - nsec &= PTP_TX_EGRESS_NS_TS_NS_MASK_; - lan743x_ptp_tx_ts_enqueue_ts(adapter, - seconds, nsec, - header); - new_timestamp_available = true; - } else if (cause == - PTP_TX_EGRESS_NS_CAPTURE_CAUSE_AUTO_) { - netif_err(adapter, drv, adapter->netdev, - "Auto capture cause not supported\n"); + + if (ptp_int_sts & PTP_INT_BIT_TX_TS_) { + cap_info = lan743x_csr_read(adapter, PTP_CAP_INFO); + + if (PTP_CAP_INFO_TX_TS_CNT_GET_(cap_info) > 0) { + seconds = lan743x_csr_read(adapter, + PTP_TX_EGRESS_SEC); + nsec = lan743x_csr_read(adapter, PTP_TX_EGRESS_NS); + cause = (nsec & + PTP_TX_EGRESS_NS_CAPTURE_CAUSE_MASK_); + header = lan743x_csr_read(adapter, + PTP_TX_MSG_HEADER); + + if (cause == PTP_TX_EGRESS_NS_CAPTURE_CAUSE_SW_) { + nsec &= PTP_TX_EGRESS_NS_TS_NS_MASK_; + lan743x_ptp_tx_ts_enqueue_ts(adapter, + seconds, nsec, + header); + new_timestamp_available = true; + } else if (cause == + PTP_TX_EGRESS_NS_CAPTURE_CAUSE_AUTO_) { + netif_err(adapter, drv, adapter->netdev, + "Auto capture cause not supported\n"); + } else { + netif_warn(adapter, drv, adapter->netdev, + "unknown tx timestamp capture cause\n"); + } } else { netif_warn(adapter, drv, adapter->netdev, - "unknown tx timestamp capture cause\n"); + "TX TS INT but no TX TS CNT\n"); } - } else { - netif_warn(adapter, drv, adapter->netdev, - "TX TS INT but no TX TS CNT\n"); + lan743x_csr_write(adapter, PTP_INT_STS, + PTP_INT_BIT_TX_TS_); } - lan743x_csr_write(adapter, PTP_INT_STS, PTP_INT_BIT_TX_TS_); + + if (ptp_int_sts & PTP_INT_IO_FE_MASK_) { + do { + channel = lan743x_get_channel((ptp_int_sts & + PTP_INT_IO_FE_MASK_) >> + PTP_INT_IO_FE_SHIFT_); + if (channel >= 0 && + channel < PCI11X1X_PTP_IO_MAX_CHANNELS) { + lan743x_ptp_io_event_clock_get(adapter, + true, + channel, + &ts); + /* PTP Falling Event post */ + ns = timespec64_to_ns(&ts); + ptp_event.timestamp = ns; + ptp_event.index = channel; + ptp_event.type = PTP_CLOCK_EXTTS; + ptp_clock_event(ptp->ptp_clock, &ptp_event); + lan743x_csr_write(adapter, PTP_INT_STS, + PTP_INT_IO_FE_SET_(channel)); + ptp_int_sts &= ~(1 << + (PTP_INT_IO_FE_SHIFT_ + + channel)); + } else { + /* Clear falling event interrupts */ + lan743x_csr_write(adapter, PTP_INT_STS, + PTP_INT_IO_FE_MASK_); + ptp_int_sts &= ~PTP_INT_IO_FE_MASK_; + } + } while (ptp_int_sts & PTP_INT_IO_FE_MASK_); + } + + if (ptp_int_sts & PTP_INT_IO_RE_MASK_) { + do { + channel = lan743x_get_channel((ptp_int_sts & + PTP_INT_IO_RE_MASK_) >> + PTP_INT_IO_RE_SHIFT_); + if (channel >= 0 && + channel < PCI11X1X_PTP_IO_MAX_CHANNELS) { + lan743x_ptp_io_event_clock_get(adapter, + false, + channel, + &ts); + /* PTP Rising Event post */ + ns = timespec64_to_ns(&ts); + ptp_event.timestamp = ns; + ptp_event.index = channel; + ptp_event.type = PTP_CLOCK_EXTTS; + ptp_clock_event(ptp->ptp_clock, &ptp_event); + lan743x_csr_write(adapter, PTP_INT_STS, + PTP_INT_IO_RE_SET_(channel)); + ptp_int_sts &= ~(1 << + (PTP_INT_IO_RE_SHIFT_ + + channel)); + } else { + /* Clear Rising event interrupt */ + lan743x_csr_write(adapter, PTP_INT_STS, + PTP_INT_IO_RE_MASK_); + ptp_int_sts &= ~PTP_INT_IO_RE_MASK_; + } + } while (ptp_int_sts & PTP_INT_IO_RE_MASK_); + } + + ptp_int_sts = lan743x_csr_read(adapter, PTP_INT_STS); } if (new_timestamp_available) @@ -802,6 +1026,28 @@ static void lan743x_ptp_clock_get(struct lan743x_adapter *adapter, mutex_unlock(&ptp->command_lock); } +static void lan743x_ptp_io_clock_get(struct lan743x_adapter *adapter, + u32 *sec, u32 *nsec, u32 *sub_nsec) +{ + struct lan743x_ptp *ptp = &adapter->ptp; + + mutex_lock(&ptp->command_lock); + lan743x_csr_write(adapter, PTP_CMD_CTL, PTP_CMD_CTL_PTP_CLOCK_READ_); + lan743x_ptp_wait_till_cmd_done(adapter, PTP_CMD_CTL_PTP_CLOCK_READ_); + + if (sec) + (*sec) = lan743x_csr_read(adapter, PTP_LTC_RD_SEC_LO); + + if (nsec) + (*nsec) = lan743x_csr_read(adapter, PTP_LTC_RD_NS); + + if (sub_nsec) + (*sub_nsec) = + lan743x_csr_read(adapter, PTP_LTC_RD_SUBNS); + + mutex_unlock(&ptp->command_lock); +} + static void lan743x_ptp_clock_step(struct lan743x_adapter *adapter, s64 time_step_ns) { @@ -815,8 +1061,12 @@ static void lan743x_ptp_clock_step(struct lan743x_adapter *adapter, if (time_step_ns > 15000000000LL) { /* convert to clock set */ - lan743x_ptp_clock_get(adapter, &unsigned_seconds, - &nano_seconds, NULL); + if (adapter->is_pci11x1x) + lan743x_ptp_io_clock_get(adapter, &unsigned_seconds, + &nano_seconds, NULL); + else + lan743x_ptp_clock_get(adapter, &unsigned_seconds, + &nano_seconds, NULL); unsigned_seconds += div_u64_rem(time_step_ns, 1000000000LL, &remainder); nano_seconds += remainder; @@ -831,8 +1081,13 @@ static void lan743x_ptp_clock_step(struct lan743x_adapter *adapter, /* convert to clock set */ time_step_ns = -time_step_ns; - lan743x_ptp_clock_get(adapter, &unsigned_seconds, - &nano_seconds, NULL); + if (adapter->is_pci11x1x) { + lan743x_ptp_io_clock_get(adapter, &unsigned_seconds, + &nano_seconds, NULL); + } else { + lan743x_ptp_clock_get(adapter, &unsigned_seconds, + &nano_seconds, NULL); + } unsigned_seconds -= div_u64_rem(time_step_ns, 1000000000LL, &remainder); nano_seconds_step = remainder; @@ -1061,6 +1316,8 @@ int lan743x_ptp_open(struct lan743x_adapter *adapter) n_pins = LAN7430_N_GPIO; break; case ID_REV_ID_LAN7431_: + case ID_REV_ID_A011_: + case ID_REV_ID_A041_: n_pins = LAN7431_N_GPIO; break; default: @@ -1088,10 +1345,10 @@ int lan743x_ptp_open(struct lan743x_adapter *adapter) adapter->netdev->dev_addr); ptp->ptp_clock_info.max_adj = LAN743X_PTP_MAX_FREQ_ADJ_IN_PPB; ptp->ptp_clock_info.n_alarm = 0; - ptp->ptp_clock_info.n_ext_ts = 0; + ptp->ptp_clock_info.n_ext_ts = LAN743X_PTP_N_EXTTS; ptp->ptp_clock_info.n_per_out = LAN743X_PTP_N_EVENT_CHAN; ptp->ptp_clock_info.n_pins = n_pins; - ptp->ptp_clock_info.pps = 0; + ptp->ptp_clock_info.pps = LAN743X_PTP_N_PPS; ptp->ptp_clock_info.pin_config = ptp->pin_config; ptp->ptp_clock_info.adjfine = lan743x_ptpci_adjfine; ptp->ptp_clock_info.adjfreq = lan743x_ptpci_adjfreq; diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.h b/drivers/net/ethernet/microchip/lan743x_ptp.h index 7663bf5d2e33..96d3a134e788 100644 --- a/drivers/net/ethernet/microchip/lan743x_ptp.h +++ b/drivers/net/ethernet/microchip/lan743x_ptp.h @@ -18,6 +18,9 @@ */ #define LAN743X_PTP_N_EVENT_CHAN 2 #define LAN743X_PTP_N_PEROUT LAN743X_PTP_N_EVENT_CHAN +#define LAN743X_PTP_N_EXTTS 4 +#define LAN743X_PTP_N_PPS 0 +#define PCI11X1X_PTP_IO_MAX_CHANNELS 8 struct lan743x_adapter; @@ -60,6 +63,11 @@ struct lan743x_ptp_perout { int gpio_pin; /* GPIO pin where output appears */ }; +struct lan743x_extts { + int flags; + struct timespec64 ts; +}; + struct lan743x_ptp { int flags; @@ -72,6 +80,7 @@ struct lan743x_ptp { unsigned long used_event_ch; struct lan743x_ptp_perout perout[LAN743X_PTP_N_PEROUT]; + struct lan743x_extts extts[LAN743X_PTP_N_EXTTS]; bool leds_multiplexed; bool led_enabled[LAN7430_N_LED];