[Bug 269224] em(4): Intel I219-V (0x0DC8) is not detected by the driver

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=269224

            Bug ID: 269224
           Summary: em(4): Intel I219-V (0x0DC8) is not detected by the
                    driver
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: osharoiko@gmail.com

One of the NICs on ASRosk Z790M-ITX, Intel I219-V specifically, is not detected
by em(4) driver. The following patch makes it work though I didn't do much
testing other than regular use and 20 minutes of iperf3. There are more device
IDs in
https://github.com/torvalds/linux/blob/master/drivers/net/ethernet/intel/e1000e/hw.h
but I only have this specific device at hands to test.

diff -ru /usr/src/sys/dev/e1000/e1000_api.c e1000/e1000_api.c
--- /usr/src/sys/dev/e1000/e1000_api.c  2022-12-09 01:03:57.000000000 +0000
+++ e1000/e1000_api.c   2023-01-26 00:33:49.000000000 +0000
@@ -339,6 +339,7 @@
        case E1000_DEV_ID_PCH_ADL_I219_V16:
        case E1000_DEV_ID_PCH_ADL_I219_LM17:
        case E1000_DEV_ID_PCH_ADL_I219_V17:
+       case E1000_DEV_ID_PCH_RPL_I219_V22:
                mac->type = e1000_pch_adp;
                break;
        case E1000_DEV_ID_PCH_MTP_I219_LM18:
diff -ru /usr/src/sys/dev/e1000/e1000_hw.h e1000/e1000_hw.h
--- /usr/src/sys/dev/e1000/e1000_hw.h   2022-12-09 01:03:57.000000000 +0000
+++ e1000/e1000_hw.h    2023-01-26 00:26:09.000000000 +0000
@@ -175,6 +175,7 @@
 #define E1000_DEV_ID_PCH_MTP_I219_V18          0x550B
 #define E1000_DEV_ID_PCH_MTP_I219_LM19         0x550C
 #define E1000_DEV_ID_PCH_MTP_I219_V19          0x550D
+#define E1000_DEV_ID_PCH_RPL_I219_V22          0x0DC8
 #define E1000_DEV_ID_82576                     0x10C9
 #define E1000_DEV_ID_82576_FIBER               0x10E6
 #define E1000_DEV_ID_82576_SERDES              0x10E7
diff -ru /usr/src/sys/dev/e1000/if_em.c e1000/if_em.c
--- /usr/src/sys/dev/e1000/if_em.c      2022-12-09 01:03:57.000000000 +0000
+++ e1000/if_em.c       2023-01-26 00:27:29.000000000 +0000
@@ -194,6 +194,7 @@
        PVID(0x8086, E1000_DEV_ID_PCH_MTP_I219_V18, "Intel(R) I219-V MTP(18)"),
        PVID(0x8086, E1000_DEV_ID_PCH_MTP_I219_LM19, "Intel(R) I219-LM
MTP(19)"),
        PVID(0x8086, E1000_DEV_ID_PCH_MTP_I219_V19, "Intel(R) I219-V MTP(19)"),
+       PVID(0x8086, E1000_DEV_ID_PCH_RPL_I219_V22, "Intel(R) I219-V RPL(22)"),
        /* required last entry */
        PVID_END
 };

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