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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Apr 2025 18:22:00.3043 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 652247fe-b165-4bc8-5383-08dd7925c054 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099DA.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB8942 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Some QSFP modules have more eeprom to be read by ethtool than the initial high and low page 0 that is currently available in the DSC's ionic sprom[] buffer. Since the current sprom[] is baked into the middle of an existing API struct, to make the high end of page 1 and page 2 available a block is carved from a reserved space of the existing port_info struct and the ionic_get_module_eeprom() service is taught how to get there. Newer firmware writes the additional QSFP page info here, yet this remains backward compatible because older firmware sets this space to all 0 and older ionic drivers do not use the reserved space. Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson --- .../ethernet/pensando/ionic/ionic_ethtool.c | 66 ++++++++++++++----- .../net/ethernet/pensando/ionic/ionic_if.h | 7 +- 2 files changed, 56 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/= net/ethernet/pensando/ionic/ionic_ethtool.c index a2d4336d2766..66f172e28f8b 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c @@ -968,10 +968,13 @@ static int ionic_get_module_info(struct net_device *n= etdev, break; case SFF8024_ID_QSFP_8436_8636: case SFF8024_ID_QSFP28_8636: - case SFF8024_ID_QSFP_PLUS_CMIS: modinfo->type =3D ETH_MODULE_SFF_8436; modinfo->eeprom_len =3D ETH_MODULE_SFF_8436_LEN; break; + case SFF8024_ID_QSFP_PLUS_CMIS: + modinfo->type =3D ETH_MODULE_SFF_8472; + modinfo->eeprom_len =3D ETH_MODULE_SFF_8472_LEN; + break; default: netdev_info(netdev, "unknown xcvr type 0x%02x\n", xcvr->sprom[0]); @@ -983,29 +986,20 @@ static int ionic_get_module_info(struct net_device *n= etdev, return 0; } =20 -static int ionic_get_module_eeprom(struct net_device *netdev, - struct ethtool_eeprom *ee, - u8 *data) +static int ionic_do_module_copy(u8 *dst, u8 *src, u32 len) { - struct ionic_lif *lif =3D netdev_priv(netdev); - struct ionic_dev *idev =3D &lif->ionic->idev; - struct ionic_xcvr_status *xcvr; - char tbuf[sizeof(xcvr->sprom)]; + char tbuf[sizeof_field(struct ionic_xcvr_status, sprom)]; int count =3D 10; - u32 len; =20 /* The NIC keeps the module prom up-to-date in the DMA space * so we can simply copy the module bytes into the data buffer. */ - xcvr =3D &idev->port_info->status.xcvr; - len =3D min_t(u32, sizeof(xcvr->sprom), ee->len); - do { - memcpy(data, &xcvr->sprom[ee->offset], len); - memcpy(tbuf, &xcvr->sprom[ee->offset], len); + memcpy(dst, src, len); + memcpy(tbuf, src, len); =20 /* Let's make sure we got a consistent copy */ - if (!memcmp(data, tbuf, len)) + if (!memcmp(dst, tbuf, len)) break; =20 } while (--count); @@ -1016,6 +1010,48 @@ static int ionic_get_module_eeprom(struct net_device= *netdev, return 0; } =20 +static int ionic_get_module_eeprom(struct net_device *netdev, + struct ethtool_eeprom *ee, + u8 *data) +{ + struct ionic_lif *lif =3D netdev_priv(netdev); + struct ionic_dev *idev =3D &lif->ionic->idev; + u32 start =3D ee->offset; + u32 err =3D -EINVAL; + u32 size =3D 0; + u8 *src; + + if (start < ETH_MODULE_SFF_8079_LEN) { + if (start + ee->len > ETH_MODULE_SFF_8079_LEN) + size =3D ETH_MODULE_SFF_8079_LEN - start; + else + size =3D ee->len; + + src =3D &idev->port_info->status.xcvr.sprom[start]; + err =3D ionic_do_module_copy(data, src, size); + if (err) + return err; + + data +=3D size; + start +=3D size; + } + + if (start >=3D ETH_MODULE_SFF_8079_LEN && + start < ETH_MODULE_SFF_8472_LEN) { + size =3D ee->len - size; + if (start + size > ETH_MODULE_SFF_8472_LEN) + size =3D ETH_MODULE_SFF_8472_LEN - start; + + start -=3D ETH_MODULE_SFF_8079_LEN; + src =3D &idev->port_info->sprom_epage[start]; + err =3D ionic_do_module_copy(data, src, size); + if (err) + return err; + } + + return err; +} + static int ionic_get_ts_info(struct net_device *netdev, struct kernel_ethtool_ts_info *info) { diff --git a/drivers/net/ethernet/pensando/ionic/ionic_if.h b/drivers/net/e= thernet/pensando/ionic/ionic_if.h index 830c8adbfbee..4943ebb27ab3 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_if.h +++ b/drivers/net/ethernet/pensando/ionic/ionic_if.h @@ -2839,6 +2839,7 @@ union ionic_port_identity { * @status: Port status data * @stats: Port statistics data * @mgmt_stats: Port management statistics data + * @sprom_epage: Extended Transceiver sprom, high page 1 and 2 * @rsvd: reserved byte(s) * @pb_stats: uplink pb drop stats */ @@ -2849,8 +2850,10 @@ struct ionic_port_info { struct ionic_port_stats stats; struct ionic_mgmt_port_stats mgmt_stats; }; - /* room for pb_stats to start at 2k offset */ - u8 rsvd[760]; + u8 sprom_epage[256]; + u8 rsvd[504]; + + /* pb_stats must start at 2k offset */ struct ionic_port_pb_stats pb_stats; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Apr 2025 18:22:01.4449 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5aa06ec4-286f-4b3c-5f56-08dd7925c102 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099DA.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ1PR12MB6027 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add support for the newer get_module_eeprom_by_page interface. Only the upper half of the 256 byte page is available for reading, and the firmware puts the two sections into the extended sprom buffer, so a union is used over the extended sprom buffer to make clear which page is to be accessed. Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson --- .../ethernet/pensando/ionic/ionic_ethtool.c | 50 +++++++++++++++++++ .../net/ethernet/pensando/ionic/ionic_if.h | 12 ++++- 2 files changed, 60 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/= net/ethernet/pensando/ionic/ionic_ethtool.c index 66f172e28f8b..25dca4b36bcf 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c @@ -1052,6 +1052,55 @@ static int ionic_get_module_eeprom(struct net_device= *netdev, return err; } =20 +static int ionic_get_module_eeprom_by_page(struct net_device *netdev, + const struct ethtool_module_eeprom *page_data, + struct netlink_ext_ack *extack) +{ + struct ionic_lif *lif =3D netdev_priv(netdev); + struct ionic_dev *idev =3D &lif->ionic->idev; + u32 err =3D -EINVAL; + u8 *src; + + if (!page_data->length) + return -EINVAL; + + if (page_data->bank !=3D 0) { + NL_SET_ERR_MSG_MOD(extack, "Only bank 0 is supported"); + return -EINVAL; + } + + if (page_data->offset < 128 && page_data->page !=3D 0) { + NL_SET_ERR_MSG_MOD(extack, "High side only for pages other than 0"); + return -EINVAL; + } + + if ((page_data->length + page_data->offset) > 256) { + NL_SET_ERR_MSG_MOD(extack, "Read past the end of the page"); + return -EINVAL; + } + + switch (page_data->page) { + case 0: + src =3D &idev->port_info->status.xcvr.sprom[page_data->offset]; + break; + case 1: + src =3D &idev->port_info->sprom_page1[page_data->offset - 128]; + break; + case 2: + src =3D &idev->port_info->sprom_page2[page_data->offset - 128]; + break; + default: + return -EINVAL; + } + + memset(page_data->data, 0, page_data->length); + err =3D ionic_do_module_copy(page_data->data, src, page_data->length); + if (err) + return err; + + return page_data->length; +} + static int ionic_get_ts_info(struct net_device *netdev, struct kernel_ethtool_ts_info *info) { @@ -1199,6 +1248,7 @@ static const struct ethtool_ops ionic_ethtool_ops =3D= { .set_tunable =3D ionic_set_tunable, .get_module_info =3D ionic_get_module_info, .get_module_eeprom =3D ionic_get_module_eeprom, + .get_module_eeprom_by_page =3D ionic_get_module_eeprom_by_page, .get_pauseparam =3D ionic_get_pauseparam, .set_pauseparam =3D ionic_set_pauseparam, .get_fecparam =3D ionic_get_fecparam, diff --git a/drivers/net/ethernet/pensando/ionic/ionic_if.h b/drivers/net/e= thernet/pensando/ionic/ionic_if.h index 4943ebb27ab3..23218208b711 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_if.h +++ b/drivers/net/ethernet/pensando/ionic/ionic_if.h @@ -2839,7 +2839,9 @@ union ionic_port_identity { * @status: Port status data * @stats: Port statistics data * @mgmt_stats: Port management statistics data - * @sprom_epage: Extended Transceiver sprom, high page 1 and 2 + * @sprom_epage: Extended Transceiver sprom + * @sprom_page1: Extended Transceiver sprom, page 1 + * @sprom_page2: Extended Transceiver sprom, page 2 * @rsvd: reserved byte(s) * @pb_stats: uplink pb drop stats */ @@ -2850,7 +2852,13 @@ struct ionic_port_info { struct ionic_port_stats stats; 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Fri, 11 Apr 2025 18:22:04 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by DS3PEPF000099DA.mail.protection.outlook.com (10.167.17.11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8655.12 via Frontend Transport; Fri, 11 Apr 2025 18:22:04 +0000 Received: from driver-dev1.pensando.io (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 11 Apr 2025 13:22:00 -0500 From: Shannon Nelson To: , , , , , , CC: , Shannon Nelson Subject: [PATCH net-next 3/3] ionic: add module eeprom channel data to ionic_if and ethtool Date: Fri, 11 Apr 2025 11:21:40 -0700 Message-ID: <20250411182140.63158-4-shannon.nelson@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20250411182140.63158-1-shannon.nelson@amd.com> References: <20250411182140.63158-1-shannon.nelson@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099DA:EE_|SA1PR12MB8117:EE_ X-MS-Office365-Filtering-Correlation-Id: 6e5b43f3-926f-4cc7-c3d7-08dd7925c28b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|1800799024|376014|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?BGUJ/6roLzch/b41PAYfIXQME8avxkwDDWxNBKSRn41I3627MPQo1av6yuRd?= =?us-ascii?Q?v3leGnrrfMx0yiJRNrCrzWnmZjrs3IGEu3Dr02Le6PxgHMAE97gWR2oE6rm4?= =?us-ascii?Q?rhnvvZ+xoSnQYx0SvnitjCZ/5FT+T0ONF1YNTNsF3LNV/5GLY11UgXn5E3YW?= =?us-ascii?Q?yMfWqwMCiCjdv50wWkT6JV74Kd+1O7BALeLcCDwi/KZNV7gB3xTknRgkVufX?= =?us-ascii?Q?ClJYQdsnNeG4ddUP8WgsjbXvFHATnKBxqvUmUy9FY3WJp9dYkphSlklWWb0f?= =?us-ascii?Q?iOP6puGs6bHU4afsy5d5ujpR8WVvxx787kxNUOKKfq4SS1qZtI6Qnxin++JI?= =?us-ascii?Q?/udxJxpzPkqtpyDj/bZqC/6kHnN8+sq/qt32vLnvpq9l1ts6UG8+xRGj0HdZ?= =?us-ascii?Q?Cfvb8MSjIOYwXNUlpZ+pAcX23igSkqqtvTsDMOwHo3EK3380bvtiDS5PoJHe?= =?us-ascii?Q?9sdsH8ZPHLRaAJHiA/2TYlUCro1jj+zonKgg3YvlZDkX1T/ClFLq5ue03IYg?= =?us-ascii?Q?tI94FdBRaQm+D45+UA99dNlf90TSWOR98gxttPDPaqEe4VBZU4MWIlz46hnI?= =?us-ascii?Q?PGsFLbgslBvPGkxIRfS0HoxkS76/sOeoo72Y2vfS4bjyO3qkFomXhztgW7NF?= =?us-ascii?Q?UHt/AhKDm5xG5qxvrHyEAdc/OxDW+KW67TrvKPxLlxVmzWww91nzT/LBc6u5?= =?us-ascii?Q?msOtuWSJ1H8uWAbdMmlVapKgWa3igdrKIxqTLsHQn4R63BdYf4rZTrlEOycl?= =?us-ascii?Q?R9n7BLpWSQ8blZFauTvN34tLNK4SsimvkWTBb3r00I01+u6zFbXWudKycZ/m?= =?us-ascii?Q?YVhc8pCKK4wSLiLThDan0pJs2pl/A6pBgVLw7N2stzGvLFz3+x0gmmHwJzso?= =?us-ascii?Q?Ru6bqG3g01CVjx5bFU0L+ZZTZ077BgGhgtc/nJAYnQyG4ef+bqxP7qtMjFnH?= =?us-ascii?Q?Jgr8BNn37l3Ou5psX8qFtwD9HWyuT1XOOsCEBMWKooFTVVqeQ6Vv9qGSjwsq?= =?us-ascii?Q?uKkfj1tKWKpt32AaQraTNFmpDlRnKu4PRtTCfUO3qHmnEqgmCT4+Jtl0xXff?= =?us-ascii?Q?mrjF7jGeOyd++qZMgwQDe56sqBhba6/f5Lpt/JR/MlXXv1/nXDb5UWGLZQG1?= =?us-ascii?Q?FW4Qm9qfZm3N/1u63eJiz5iwwMSBpeSSo2VqXtNMbPbCRsMmUNCfAqUVOVvS?= =?us-ascii?Q?EWDgxIT8C4ZaatLCOvquLMTtlZvAaORcARcJL5Ct62gQ2io7uEf8dRed7Xbx?= =?us-ascii?Q?vVjhfMOKfX6HqWwjcmNBt66lknofIX8rfAeBj4RzXLisdVaRn6424Ur5r3j0?= =?us-ascii?Q?z++bJVUcunrrd7xfN1Zr4U1UzNKdUQ5PAVYdY+SOkLo8IrMcKMaNNUnMQLDm?= =?us-ascii?Q?C85LF2dCXmJwFKSIFFe04e025B64atGOI4dDqSHZB3dEXDNgG6liKtcjfo9u?= =?us-ascii?Q?mVlmdi7b1bphA41XgFlqSlkGU6cFslfzCH9eJP7dY6HHzv8ZxMyCwv38iaCA?= =?us-ascii?Q?NUXmfOqzLZPMgQsT7OQRyltKWrBDx0wB6Ll7?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(36860700013)(1800799024)(376014)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Apr 2025 18:22:04.0231 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6e5b43f3-926f-4cc7-c3d7-08dd7925c28b X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099DA.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB8117 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Make the CMIS module type's page 17 channel data available for ethtool to request. As done previously, carve space for this data from the port_info reserved space. In the future, if additional pages are needed, a new firmware AdminQ command will be added for accessing random pages. Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson --- drivers/net/ethernet/pensando/ionic/ionic_ethtool.c | 3 +++ drivers/net/ethernet/pensando/ionic/ionic_if.h | 6 ++++-- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/= net/ethernet/pensando/ionic/ionic_ethtool.c index 25dca4b36bcf..66685cfb3571 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c @@ -1089,6 +1089,9 @@ static int ionic_get_module_eeprom_by_page(struct net= _device *netdev, case 2: src =3D &idev->port_info->sprom_page2[page_data->offset - 128]; break; + case 17: + src =3D &idev->port_info->sprom_page17[page_data->offset - 128]; + break; default: return -EINVAL; } diff --git a/drivers/net/ethernet/pensando/ionic/ionic_if.h b/drivers/net/e= thernet/pensando/ionic/ionic_if.h index 23218208b711..f1ddbe9994a3 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_if.h +++ b/drivers/net/ethernet/pensando/ionic/ionic_if.h @@ -2842,6 +2842,7 @@ union ionic_port_identity { * @sprom_epage: Extended Transceiver sprom * @sprom_page1: Extended Transceiver sprom, page 1 * @sprom_page2: Extended Transceiver sprom, page 2 + * @sprom_page17: Extended Transceiver sprom, page 17 * @rsvd: reserved byte(s) * @pb_stats: uplink pb drop stats */ @@ -2853,13 +2854,14 @@ struct ionic_port_info { struct ionic_mgmt_port_stats mgmt_stats; }; union { - u8 sprom_epage[256]; + u8 sprom_epage[384]; struct { u8 sprom_page1[128]; u8 sprom_page2[128]; + u8 sprom_page17[128]; }; }; - u8 rsvd[504]; + u8 rsvd[376]; =20 /* pb_stats must start at 2k offset */ struct ionic_port_pb_stats pb_stats; --=20 2.17.1