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authorJonas Gorski2023-08-02 11:23:56 +0200
committerGreg Kroah-Hartman2023-08-11 12:08:17 +0200
commitafac854f8221aabcbb7fa13b3fbd9e64097658ae (patch)
treeac35b97871a59292455e8381ac691184405c8153
parent72b3aea3450ecd45d42d8adc44d9874e7d5f32f3 (diff)
prestera: fix fallback to previous version on same major version
[ Upstream commit b755c25fbcd568821a3bb0e0d5c2daa5fcb00bba ] When both supported and previous version have the same major version, and the firmwares are missing, the driver ends in a loop requesting the same (previous) version over and over again: [ 76.327413] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.1.img firmware, fall-back to previous 4.0 version [ 76.339802] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.352162] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.364502] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.376848] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.389183] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.401522] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.413860] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.426199] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version ... Fix this by inverting the check to that we aren't yet at the previous version, and also check the minor version. This also catches the case where both versions are the same, as it was after commit bb5dbf2cc64d ("net: marvell: prestera: add firmware v4.0 support"). With this fix applied: [ 88.499622] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.1.img firmware, fall-back to previous 4.0 version [ 88.511995] Prestera DX 0000:01:00.0: failed to request previous firmware: mrvl/prestera/mvsw_prestera_fw-v4.0.img [ 88.522403] Prestera DX: probe of 0000:01:00.0 failed with error -2 Fixes: 47f26018a414 ("net: marvell: prestera: try to load previous fw version") Signed-off-by: Jonas Gorski <jonas.gorski@bisdn.de> Acked-by: Elad Nachman <enachman@marvell.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Taras Chornyi <taras.chornyi@plvision.eu> Link: https://lore.kernel.org/r/20230802092357.163944-1-jonas.gorski@bisdn.de Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/net/ethernet/marvell/prestera/prestera_pci.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_pci.c b/drivers/net/ethernet/marvell/prestera/prestera_pci.c
index 59470d99f522..a37dbbda8de3 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_pci.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_pci.c
@@ -702,7 +702,8 @@ pick_fw_ver:
err = request_firmware_direct(&fw->bin, fw_path, fw->dev.dev);
if (err) {
- if (ver_maj == PRESTERA_SUPP_FW_MAJ_VER) {
+ if (ver_maj != PRESTERA_PREV_FW_MAJ_VER ||
+ ver_min != PRESTERA_PREV_FW_MIN_VER) {
ver_maj = PRESTERA_PREV_FW_MAJ_VER;
ver_min = PRESTERA_PREV_FW_MIN_VER;