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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Oct 2025 11:17:23.0507 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6b386eac-3504-4013-6b25-08de186f1087 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=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF0000449E.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7481 Adds support for ethtool split header selftest. Performs UDP and TCP check to ensure split header selft test works for both packet types. Signed-off-by: Raju Rangoju Reviewed-by: Maxime Chevallier --- drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 2 + drivers/net/ethernet/amd/xgbe/xgbe-selftest.c | 46 +++++++++++++++++++ drivers/net/ethernet/amd/xgbe/xgbe.h | 1 + 3 files changed, 49 insertions(+) diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c index ffc7d83522c7..b646ae575e6a 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c @@ -211,6 +211,7 @@ static void xgbe_config_sph_mode(struct xgbe_prv_data *pdata) } XGMAC_IOWRITE_BITS(pdata, MAC_RCR, HDSMS, XGBE_SPH_HDSMS_SIZE); + pdata->sph = true; } static void xgbe_disable_sph_mode(struct xgbe_prv_data *pdata) @@ -223,6 +224,7 @@ static void xgbe_disable_sph_mode(struct xgbe_prv_data *pdata) XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_CR, SPH, 0); } + pdata->sph = false; } static int xgbe_write_rss_reg(struct xgbe_prv_data *pdata, unsigned int type, diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-selftest.c b/drivers/net/ethernet/amd/xgbe/xgbe-selftest.c index 23b9d568a861..15c51e96bcdf 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-selftest.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-selftest.c @@ -173,6 +173,48 @@ static int xgbe_test_phy_loopback(struct xgbe_prv_data *pdata) return ret; } +static int xgbe_test_sph(struct xgbe_prv_data *pdata) +{ + struct net_packet_attrs attr = {}; + unsigned long cnt_end, cnt_start; + int ret; + + cnt_start = pdata->ext_stats.rx_split_header_packets; + + if (!pdata->sph) { + netdev_err(pdata->netdev, "Split Header not enabled\n"); + return -EOPNOTSUPP; + } + + /* UDP test */ + attr.dst = pdata->netdev->dev_addr; + attr.tcp = false; + + ret = __xgbe_test_loopback(pdata, &attr); + if (ret) + return ret; + + cnt_end = pdata->ext_stats.rx_split_header_packets; + if (cnt_end <= cnt_start) + return -EINVAL; + + /* TCP test */ + cnt_start = cnt_end; + + attr.dst = pdata->netdev->dev_addr; + attr.tcp = true; + + ret = __xgbe_test_loopback(pdata, &attr); + if (ret) + return ret; + + cnt_end = pdata->ext_stats.rx_split_header_packets; + if (cnt_end <= cnt_start) + return -EINVAL; + + return 0; +} + static const struct xgbe_test xgbe_selftests[] = { { .name = "MAC Loopback ", @@ -182,6 +224,10 @@ static const struct xgbe_test xgbe_selftests[] = { .name = "PHY Loopback ", .lb = XGBE_LOOPBACK_NONE, .fn = xgbe_test_phy_loopback, + }, { + .name = "Split Header ", + .lb = XGBE_LOOPBACK_PHY, + .fn = xgbe_test_sph, }, }; diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h index dc03082c59aa..03ef0f548483 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe.h +++ b/drivers/net/ethernet/amd/xgbe/xgbe.h @@ -1246,6 +1246,7 @@ struct xgbe_prv_data { int rx_adapt_retries; bool rx_adapt_done; bool mode_set; + bool sph; }; /* Function prototypes*/ -- 2.34.1