From patchwork Thu Jun 6 12:36:52 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 165980 Delivered-To: patch@linaro.org Received: by 2002:a92:9e1a:0:0:0:0:0 with SMTP id q26csp8733695ili; Thu, 6 Jun 2019 05:37:39 -0700 (PDT) X-Google-Smtp-Source: APXvYqxPAnyzbRrUqusXU7BTxz3jG5F3ewe/f/4sX6cXR2Z6DjEXpn0nkC9U6NeTbuSMCuNiexpN X-Received: by 2002:a17:902:f087:: with SMTP id go7mr24272533plb.330.1559824658968; Thu, 06 Jun 2019 05:37:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1559824658; cv=none; d=google.com; s=arc-20160816; b=x2V9GYM5bIR51TYHLbzO4nraXE2gCkbCibmYw5axlM1k6de3RSLkT44cerkWU0lcg1 NZ+qo4birFME1b+rcmuOeJEeH11l42wg/z4ixFL2i+MulJtFRiS2eIXhmJw+qjwWSJ+W EtZoYOKY+FPmuQY6zUCYi+goyVV2PHqHSsk5F2FImxjCIGR1Z2Rv9hWJDphXdCiwl56Z qkmrzKJZXS5qp8zsLCSlokV3M12//IOtvop2PFYv33Py6VlloupjR3ETkqP2D8Kp6lkn 5EuVwpGtSJnpO89Igl3EcYU6qxQl20PvOc/bdg+RE3OwQl3CxwtZbEeP81YCBPS+3RNL smQg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=FGwPToe1/hm4VFmV3V7UiYicDUOpCJgK9GTxN9XNyKw=; b=o6QFIcJohHA24vd+L1IDugRb8dGki08on5XnN2sSz6yCPL4TeIrsobyFIz8QmHp/AU s76vzDt6ojdJ5OaNmFMG0xkOhl014OUmR83iyY4G8vKL/pFoc9PZPnEeOZrJgSFW8lgI uj68C40DkxA5qh7UbE4fWYxn4y3PZ5Oa3AdW4TcOlarYnEHRrUiG6JPpwvOsSjLa9AXo RIEBkPhxcnypbnvefR1RvaV5pd6NNd0jHmEzPwUKf9H35kmO3YkarlE3Zn90mzgf8Oo4 tIroTFGprGagilkytBQkzs9GqrNMFhpM/5+LJeGcVhu76i29ZU7rMtXoOQANJQ8CipHp tX2A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-efi-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-efi-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id cl13si1784278plb.97.2019.06.06.05.37.38; Thu, 06 Jun 2019 05:37:38 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-efi-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-efi-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-efi-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727612AbfFFMhi (ORCPT + 3 others); Thu, 6 Jun 2019 08:37:38 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:18108 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727509AbfFFMhi (ORCPT ); Thu, 6 Jun 2019 08:37:38 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 17D12323093F1806F606; Thu, 6 Jun 2019 20:37:33 +0800 (CST) Received: from lhrphicprd00229.huawei.com (10.123.41.22) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.439.0; Thu, 6 Jun 2019 20:37:26 +0800 From: Jonathan Cameron To: , , CC: , , , , , , , Jonathan Cameron Subject: [RFC PATCH 4/6] efi / ras: CCIX Port error reporting Date: Thu, 6 Jun 2019 20:36:52 +0800 Message-ID: <20190606123654.78973-5-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190606123654.78973-1-Jonathan.Cameron@huawei.com> References: <20190606123654.78973-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.123.41.22] X-CFilter-Loop: Reflected Sender: linux-efi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-efi@vger.kernel.org The CCIX 1.0 base specification defines a CCIX protocol layer port. The specification provides a mechanism for detailed error logging for these ports. The UEFI 2.8 specification includes a CCIX CPER record for firmware first handling to report these errors to the operating system. This patch is very similar to the support previously added for for CCIX Memory Errors and provides both logging and RAS tracepoint for this error class. Signed-off-by: Jonathan Cameron --- drivers/acpi/apei/ghes.c | 4 + drivers/firmware/efi/cper-ccix.c | 123 +++++++++++++++++++++++++++++++ include/linux/cper.h | 42 +++++++++++ include/ras/ras_event.h | 66 +++++++++++++++++ 4 files changed, 235 insertions(+) -- 2.20.1 diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index a412cfb7c8657..2b2c0df204523 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -512,6 +512,10 @@ static void ghes_handle_ccix_per(struct acpi_hest_generic_data *gdata, int sev) trace_ccix_atc_error_event(payload, err_seq, sev, ccix_atc_err_ven_len_get(payload)); break; + case CCIX_PORT_ERROR: + trace_ccix_port_error_event(payload, err_seq, sev, + ccix_port_err_ven_len_get(payload)); + break; default: /* Unknown error type */ pr_info("CCIX error of unknown or vendor defined type\n"); diff --git a/drivers/firmware/efi/cper-ccix.c b/drivers/firmware/efi/cper-ccix.c index 1b88458eae32f..fcf77834b9894 100644 --- a/drivers/firmware/efi/cper-ccix.c +++ b/drivers/firmware/efi/cper-ccix.c @@ -428,6 +428,81 @@ static int cper_ccix_atc_err_details(const char *pfx, return 0; } +static const char * const ccix_port_err_type_strs[] = { + "Generic Bus / Slave Error", + "Bus Parity / ECC Error", + "BDF Not Present", + "Invalid Address", + "Invalid AgentID", + "Bus Timeout", + "Hang", + "Egress Blocked", +}; + +static const char *cper_ccix_port_err_type_str(__u8 op) +{ + return op < ARRAY_SIZE(ccix_port_err_type_strs) ? + ccix_port_err_type_strs[op] : "Reserved"; +} + +static const char * const ccix_port_err_op_strs[] = { + "Command", + "Read", + "Write", +}; + +static const char *cper_ccix_port_err_op_str(__u8 op) +{ + return op < ARRAY_SIZE(ccix_port_err_op_strs) ? + ccix_port_err_op_strs[op] : "Reserved"; +} + +static int cper_ccix_port_err_details(const char *pfx, + struct acpi_hest_generic_data *gdata) +{ + struct cper_ccix_port_error *full_port_err; + struct cper_sec_ccix_port_error *port_err; + u16 vendor_data_len; + int i; + + if (gdata->error_data_length < sizeof(*full_port_err)) + return -ENOSPC; + + full_port_err = acpi_hest_get_payload(gdata); + + port_err = &full_port_err->port_record; + + if (port_err->validation_bits & CCIX_PORT_ERR_TYPE_VALID) + printk("%s""Error Type: %s\n", pfx, + cper_ccix_port_err_type_str(port_err->err_type)); + + if (port_err->validation_bits & CCIX_PORT_ERR_OP_VALID) + printk("%s""Operation: %s\n", pfx, + cper_ccix_port_err_op_str(port_err->op_type)); + + /* CHECK THE AER EQUIVALENT */ + if (port_err->validation_bits & CCIX_PORT_ERR_MESSAGE_VALID) { + for (i = 0; i < ARRAY_SIZE(port_err->message); i++) + printk("%s""Message%d: 0x%08x\n", pfx, i, + port_err->message[i]); + } + + if (port_err->validation_bits & CCIX_PORT_ERR_VENDOR_DATA_VALID) { + if (gdata->error_data_length < sizeof(*full_port_err) + 4) + return -ENOSPC; + + vendor_data_len = port_err->vendor_data[0] & GENMASK(15, 0); + if (gdata->error_data_length < sizeof(*full_port_err) + vendor_data_len) + return -ENOSPC; + + for (i = 0; i < vendor_data_len / 4 - 1; i++) + printk("%s""Vendor%d: 0x%08x\n", pfx, i, + port_err->vendor_data[i + 1]); + } + + return 0; +} + int cper_print_ccix_per(const char *pfx, struct acpi_hest_generic_data *gdata) { struct cper_sec_ccix_header *header = acpi_hest_get_payload(gdata); @@ -493,6 +568,8 @@ int cper_print_ccix_per(const char *pfx, struct acpi_hest_generic_data *gdata) return cper_ccix_cache_err_details(pfx, gdata); case CCIX_ATC_ERROR: return cper_ccix_atc_err_details(pfx, gdata); + case CCIX_PORT_ERROR: + return cper_ccix_port_err_details(pfx, gdata); default: /* Vendor defined so no formatting be done */ break; @@ -608,3 +685,49 @@ const char *cper_ccix_atc_err_unpack(struct trace_seq *p, return ret; } +void cper_ccix_port_err_pack(const struct cper_sec_ccix_port_error *port_record, + struct cper_ccix_port_err_compact *cport_err, + const u16 vendor_data_len, + u8 *vendor_data) +{ + cport_err->validation_bits = port_record->validation_bits; + cport_err->err_type = port_record->err_type; + cport_err->op_type = port_record->op_type; + memcpy(cport_err->message, port_record->message, + sizeof(cport_err->message)); + memcpy(vendor_data, &port_record->vendor_data[1], vendor_data_len); +} + +static int cper_ccix_err_port_location(struct cper_ccix_port_err_compact *cport_err, + char *msg) +{ + u32 len = CPER_REC_LEN - 1; + u32 n = 0; + + if (!msg) + return 0; + + if (cport_err->validation_bits & CCIX_PORT_ERR_TYPE_VALID) + n += snprintf(msg + n, len, "Error Type: %s ", + cper_ccix_port_err_type_str(cport_err->err_type)); + + + if (cport_err->validation_bits & CCIX_PORT_ERR_OP_VALID) + n += snprintf(msg + n, len, "Op: %s ", + cper_ccix_port_err_op_str(cport_err->op_type)); + + return n; +} + +const char *cper_ccix_port_err_unpack(struct trace_seq *p, + struct cper_ccix_port_err_compact *cport_err) +{ + const char *ret = trace_seq_buffer_ptr(p); + + if (cper_ccix_err_port_location(cport_err, rcd_decode_str)) + trace_seq_printf(p, "%s", rcd_decode_str); + + trace_seq_putc(p, '\0'); + + return ret; +} diff --git a/include/linux/cper.h b/include/linux/cper.h index 77ce1c04dec25..cd023e0309bf4 100644 --- a/include/linux/cper.h +++ b/include/linux/cper.h @@ -719,6 +719,41 @@ struct cper_ccix_atc_err_compact { __u8 instance; }; + +struct cper_sec_ccix_port_error { + __u32 validation_bits; +#define CCIX_PORT_ERR_OP_VALID BIT(0) +#define CCIX_PORT_ERR_TYPE_VALID BIT(1) +#define CCIX_PORT_ERR_MESSAGE_VALID BIT(2) +#define CCIX_PORT_ERR_VENDOR_DATA_VALID BIT(3) + __u16 length; /* Includes vendor specific log info */ + __u8 op_type; + __u8 err_type; + __u32 message[8]; + __u32 vendor_data[]; +}; + +struct cper_ccix_port_error { + struct cper_sec_ccix_header header; + __u32 ccix_header[CCIX_PER_LOG_HEADER_DWS]; + struct cper_sec_ccix_port_error port_record; +}; + +static inline u16 ccix_port_err_ven_len_get(struct cper_ccix_port_error *port_err) +{ + if (port_err->port_record.validation_bits & CCIX_PORT_ERR_VENDOR_DATA_VALID) + return port_err->port_record.vendor_data[0] & 0xFFFF; + else + return 0; +} + +struct cper_ccix_port_err_compact { + __u32 validation_bits; + __u32 message[8]; + __u8 err_type; + __u8 op_type; +}; + /* Reset to default packing */ #pragma pack() @@ -757,6 +792,13 @@ void cper_ccix_atc_err_pack(const struct cper_sec_ccix_atc_error *atc_record, const char *cper_ccix_atc_err_unpack(struct trace_seq *p, struct cper_ccix_atc_err_compact *catc_err); +void cper_ccix_port_err_pack(const struct cper_sec_ccix_port_error *port_record, + struct cper_ccix_port_err_compact *cport_err, + const u16 vendor_data_len, + u8 *vendor_data); +const char *cper_ccix_port_err_unpack(struct trace_seq *p, + struct cper_ccix_port_err_compact *cport_err); + struct acpi_hest_generic_data; int cper_print_ccix_per(const char *pfx, struct acpi_hest_generic_data *gdata); diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h index bab49e297551e..52ac3f2d4c117 100644 --- a/include/ras/ras_event.h +++ b/include/ras/ras_event.h @@ -548,6 +548,72 @@ TRACE_EVENT(ccix_atc_error_event, ) ); +TRACE_EVENT(ccix_port_error_event, + TP_PROTO(struct cper_ccix_port_error *err, + u32 err_seq, + u8 sev, + u16 ven_len), + + TP_ARGS(err, err_seq, sev, ven_len), + TP_STRUCT__entry( + __field(u32, err_seq) + __field(u8, sev) + __field(u8, sevdetail) + __field(u8, source) + __field(u8, component) + __field(u64, pa) + __field(u8, pa_mask_lsb) + __field_struct(struct cper_ccix_port_err_compact, data) + __field(u16, vendor_data_length) + __dynamic_array(u8, vendor_data, ven_len) + ), + + TP_fast_assign( + __entry->err_seq = err_seq; + + __entry->sev = sev; + __entry->sevdetail = FIELD_GET(CCIX_PER_LOG_DW1_SEV_UE_M | + CCIX_PER_LOG_DW1_SEV_NO_COMM_M | + CCIX_PER_LOG_DW1_SEV_DEGRADED_M | + CCIX_PER_LOG_DW1_SEV_DEFFERABLE_M, + err->ccix_header[1]); + if (err->header.validation_bits & 0x1) + __entry->source = err->header.source_id; + else + __entry->source = ~0; + + __entry->component = FIELD_GET(CCIX_PER_LOG_DW1_COMP_TYPE_M, + err->ccix_header[1]); + if (err->ccix_header[1] & CCIX_PER_LOG_DW1_ADDR_VAL_M) { + __entry->pa = (u64)err->ccix_header[2] << 32 | + (err->ccix_header[3] & 0xfffffffc); + __entry->pa_mask_lsb = err->ccix_header[4] & 0xff; + } else { + __entry->pa = ~0ull; + __entry->pa_mask_lsb = ~0; + } + + __entry->vendor_data_length = ven_len ? ven_len - 4 : 0; + cper_ccix_port_err_pack(&err->port_record, &__entry->data, + __entry->vendor_data_length, + __get_dynamic_array(vendor_data)); + ), + + TP_printk("{%d} %s CCIX PER Port Error in %s SevUE:%d SevNoComm:%d SevDegraded:%d SevDeferred:%d physical addr: %016llx (mask: %x) %s vendor:%s", + __entry->err_seq, + cper_severity_str(__entry->sev), + cper_ccix_comp_type_str(__entry->component), + __entry->sevdetail & BIT(0) ? 1 : 0, + __entry->sevdetail & BIT(1) ? 1 : 0, + __entry->sevdetail & BIT(2) ? 1 : 0, + __entry->sevdetail & BIT(3) ? 1 : 0, + __entry->pa, + __entry->pa_mask_lsb, + cper_ccix_port_err_unpack(p, &__entry->data), + __print_hex(__get_dynamic_array(vendor_data), __entry->vendor_data_length) + ) +); + /* * memory-failure recovery action result event *