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(host-127-24.cafrjco.fresno.ca.us.clients.pavlovmedia.net. [68.180.127.24]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b7a1af88c4sm5466345eec.31.2026.01.28.21.17.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jan 2026 21:17:46 -0800 (PST) From: Ethan Nelson-Moore To: netdev@vger.kernel.org Cc: linux-api@vger.kernel.org, Ethan Nelson-Moore , Andrew Lunn , Heiner Kallweit , Russell King Subject: [PATCH net-next] uapi: net: mii: correct 100BASE4 bit descriptions Date: Wed, 28 Jan 2026 21:17:35 -0800 Message-ID: <20260129051736.18986-1-enelsonmoore@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The 100BASE4 bits in MII registers indicate 100BASE-T4, as can be seen in Ethernet PHY documentation (such as the datasheet linked below), not 4K packets. Correct the comments describing these bits. Link: https://www.ti.com/lit/ds/symlink/dp83849c.pdf Signed-off-by: Ethan Nelson-Moore --- include/uapi/linux/mii.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/uapi/linux/mii.h b/include/uapi/linux/mii.h index 39f7c44baf53..ba6f8a4fe0a6 100644 --- a/include/uapi/linux/mii.h +++ b/include/uapi/linux/mii.h @@ -66,7 +66,7 @@ #define BMSR_10FULL 0x1000 /* Can do 10mbps, full-duplex */ #define BMSR_100HALF 0x2000 /* Can do 100mbps, half-duplex */ #define BMSR_100FULL 0x4000 /* Can do 100mbps, full-duplex */ -#define BMSR_100BASE4 0x8000 /* Can do 100mbps, 4k packets */ +#define BMSR_100BASE4 0x8000 /* Can do 100BASE-T4 */ /* Advertisement control register. */ #define ADVERTISE_SLCT 0x001f /* Selector bits */ @@ -79,7 +79,7 @@ #define ADVERTISE_1000XPAUSE 0x0080 /* Try for 1000BASE-X pause */ #define ADVERTISE_100FULL 0x0100 /* Try for 100mbps full-duplex */ #define ADVERTISE_1000XPSE_ASYM 0x0100 /* Try for 1000BASE-X asym pause */ -#define ADVERTISE_100BASE4 0x0200 /* Try for 100mbps 4k packets */ +#define ADVERTISE_100BASE4 0x0200 /* Try for 100BASE-T4 */ #define ADVERTISE_PAUSE_CAP 0x0400 /* Try for pause */ #define ADVERTISE_PAUSE_ASYM 0x0800 /* Try for asymetric pause */ #define ADVERTISE_RESV 0x1000 /* Unused... */ @@ -102,7 +102,7 @@ #define LPA_1000XPAUSE 0x0080 /* Can do 1000BASE-X pause */ #define LPA_100FULL 0x0100 /* Can do 100mbps full-duplex */ #define LPA_1000XPAUSE_ASYM 0x0100 /* Can do 1000BASE-X pause asym*/ -#define LPA_100BASE4 0x0200 /* Can do 100mbps 4k packets */ +#define LPA_100BASE4 0x0200 /* Can do 100BASE-T4 */ #define LPA_PAUSE_CAP 0x0400 /* Can pause */ #define LPA_PAUSE_ASYM 0x0800 /* Can pause asymetrically */ #define LPA_RESV 0x1000 /* Unused... */ -- 2.43.0