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GET /api/1.1/patches/2221077/?format=api
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{
    "id": 2221077,
    "url": "http://patchwork.ozlabs.org/api/1.1/patches/2221077/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260408-jk-even-more-e825c-fixes-v1-4-b959da91a81f@intel.com/",
    "project": {
        "id": 46,
        "url": "http://patchwork.ozlabs.org/api/1.1/projects/46/?format=api",
        "name": "Intel Wired Ethernet development",
        "link_name": "intel-wired-lan",
        "list_id": "intel-wired-lan.osuosl.org",
        "list_email": "intel-wired-lan@osuosl.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20260408-jk-even-more-e825c-fixes-v1-4-b959da91a81f@intel.com>",
    "date": "2026-04-08T18:46:34",
    "name": "[iwl-net,4/4] ice: fix ice_ptp_read_tx_hwtstamp_status_eth56g",
    "commit_ref": null,
    "pull_url": null,
    "state": "under-review",
    "archived": false,
    "hash": "c34298c493c75ddc52655f4ec365d924a1e1bfe8",
    "submitter": {
        "id": 9784,
        "url": "http://patchwork.ozlabs.org/api/1.1/people/9784/?format=api",
        "name": "Jacob Keller",
        "email": "jacob.e.keller@intel.com"
    },
    "delegate": {
        "id": 109701,
        "url": "http://patchwork.ozlabs.org/api/1.1/users/109701/?format=api",
        "username": "anguy11",
        "first_name": "Anthony",
        "last_name": "Nguyen",
        "email": "anthony.l.nguyen@intel.com"
    },
    "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260408-jk-even-more-e825c-fixes-v1-4-b959da91a81f@intel.com/mbox/",
    "series": [
        {
            "id": 499189,
            "url": "http://patchwork.ozlabs.org/api/1.1/series/499189/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=499189",
            "date": "2026-04-08T18:46:30",
            "name": "ice: E825C missing PHY timestamp interrupt fixes",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/499189/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2221077/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2221077/checks/",
    "tags": {},
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        "From": "Jacob Keller <jacob.e.keller@intel.com>",
        "Date": "Wed, 08 Apr 2026 11:46:34 -0700",
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        "Message-Id": "<20260408-jk-even-more-e825c-fixes-v1-4-b959da91a81f@intel.com>",
        "References": "<20260408-jk-even-more-e825c-fixes-v1-0-b959da91a81f@intel.com>",
        "In-Reply-To": "<20260408-jk-even-more-e825c-fixes-v1-0-b959da91a81f@intel.com>",
        "To": "Anthony Nguyen <anthony.l.nguyen@intel.com>,\n Intel Wired LAN <intel-wired-lan@lists.osuosl.org>, netdev@vger.kernel.org",
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        ],
        "Subject": "[Intel-wired-lan] [PATCH iwl-net 4/4] ice: fix\n ice_ptp_read_tx_hwtstamp_status_eth56g",
        "X-BeenThere": "intel-wired-lan@osuosl.org",
        "X-Mailman-Version": "2.1.30",
        "Precedence": "list",
        "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n <intel-wired-lan.osuosl.org>",
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        "Cc": "Aleksandr Loktionov <aleksandr.loktionov@intel.com>,\n Jacob Keller <jacob.e.keller@intel.com>,\n Timothy Miskell <timothy.miskell@intel.com>",
        "Errors-To": "intel-wired-lan-bounces@osuosl.org",
        "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>"
    },
    "content": "The ice_ptp_read_tx_hwtstamp_status_eth56g function calls\nice_read_phy_eth56g with a PHY index. However the function actually expects\na port index. This causes the function to read the wrong PHY_PTP_INT_STATUS\nregisters, and effectively makes the status wrong for the second set of\nports from 4 to 7.\n\nThe ice_read_phy_eth56g function uses the provided port index to determine\nwhich PHY device to read. We could refactor the entire chain to take a PHY\nindex, but this would impact many code sites. Instead, multiply the PHY\nindex by the number of ports, so that we read from the first port of each\nPHY.\n\nFixes: 7cab44f1c35f (\"ice: Introduce ETH56G PHY model for E825C products\")\nSigned-off-by: Jacob Keller <jacob.e.keller@intel.com>\nReviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>\n---\n drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 10 ++++++++--\n 1 file changed, 8 insertions(+), 2 deletions(-)",
    "diff": "diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c\nindex 64ad5ed5c688..672218e5d1f9 100644\n--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c\n+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c\n@@ -2219,13 +2219,19 @@ int ice_ptp_read_tx_hwtstamp_status_eth56g(struct ice_hw *hw, u32 *ts_status)\n \t*ts_status = 0;\n \n \tfor (phy = 0; phy < params->num_phys; phy++) {\n+\t\tu8 port;\n \t\tint err;\n \n-\t\terr = ice_read_phy_eth56g(hw, phy, PHY_PTP_INT_STATUS, &status);\n+\t\t/* ice_read_phy_eth56g expects a port index, so use the first\n+\t\t * port of the PHY\n+\t\t */\n+\t\tport = phy * hw->ptp.ports_per_phy;\n+\n+\t\terr = ice_read_phy_eth56g(hw, port, PHY_PTP_INT_STATUS, &status);\n \t\tif (err)\n \t\t\treturn err;\n \n-\t\t*ts_status |= (status & mask) << (phy * hw->ptp.ports_per_phy);\n+\t\t*ts_status |= (status & mask) << port;\n \t}\n \n \tice_debug(hw, ICE_DBG_PTP, \"PHY interrupt err: %x\\n\", *ts_status);\n",
    "prefixes": [
        "iwl-net",
        "4/4"
    ]
}