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Subject[RFC net-next 2/4] net: marvell: prestera: turn FW supported versions into an array
Date
From: Vadym Kochan <vkochan@marvell.com>

In case of supporting more than 2 FW versions it is more flexible to
have them defined as array.

Signed-off-by: Vadym Kochan <vkochan@marvell.com>
---
.../ethernet/marvell/prestera/prestera_pci.c | 55 ++++++++-----------
1 file changed, 24 insertions(+), 31 deletions(-)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_pci.c b/drivers/net/ethernet/marvell/prestera/prestera_pci.c
index 58642b540322..ce4cf51dba5a 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_pci.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_pci.c
@@ -14,11 +14,10 @@

#define PRESTERA_MSG_MAX_SIZE 1500

-#define PRESTERA_SUPP_FW_MAJ_VER 3
-#define PRESTERA_SUPP_FW_MIN_VER 0
-
-#define PRESTERA_PREV_FW_MAJ_VER 2
-#define PRESTERA_PREV_FW_MIN_VER 0
+static struct prestera_fw_rev prestera_fw_supp[] = {
+ { 3, 0 },
+ { 2, 0 }
+};

#define PRESTERA_FW_PATH_FMT "mrvl/prestera/mvsw_prestera_fw-v%u.%u.img"

@@ -629,40 +628,34 @@ static int prestera_fw_hdr_parse(struct prestera_fw *fw)

static int prestera_fw_get(struct prestera_fw *fw)
{
- int ver_maj = PRESTERA_SUPP_FW_MAJ_VER;
- int ver_min = PRESTERA_SUPP_FW_MIN_VER;
char fw_path[128];
int err;
+ int i;

-pick_fw_ver:
- snprintf(fw_path, sizeof(fw_path), PRESTERA_FW_PATH_FMT,
- ver_maj, ver_min);
-
- err = request_firmware_direct(&fw->bin, fw_path, fw->dev.dev);
- if (err) {
- if (ver_maj == PRESTERA_SUPP_FW_MAJ_VER) {
- ver_maj = PRESTERA_PREV_FW_MAJ_VER;
- ver_min = PRESTERA_PREV_FW_MIN_VER;
+ for (i = 0; i < ARRAY_SIZE(prestera_fw_supp); i++) {
+ struct prestera_fw_rev *ver = &prestera_fw_supp[i];

- dev_warn(fw->dev.dev,
- "missing latest %s firmware, fall-back to previous %u.%u version\n",
- fw_path, ver_maj, ver_min);
+ snprintf(fw_path, sizeof(fw_path), PRESTERA_FW_PATH_FMT,
+ ver->maj, ver->min);

- goto pick_fw_ver;
- } else {
- dev_err(fw->dev.dev, "failed to request previous firmware: %s\n",
- fw_path);
- return err;
+ err = request_firmware_direct(&fw->bin, fw_path, fw->dev.dev);
+ if (!err) {
+ dev_info(fw->dev.dev, "Loading %s ...", fw_path);
+ fw->rev_supp = *ver;
+ return 0;
}
- }
-
- dev_info(fw->dev.dev, "Loading %s ...", fw_path);

- fw->rev_supp.maj = ver_maj;
- fw->rev_supp.min = ver_min;
- fw->rev_supp.sub = 0;
+ if (i == 0)
+ dev_warn(fw->dev.dev,
+ "missing latest %s firmware, fall-back to previous version\n",
+ fw_path);
+ else
+ dev_warn(fw->dev.dev, "failed to request previous firmware: %s\n",
+ fw_path);
+ }

- return 0;
+ dev_err(fw->dev.dev, "could not find any of the supported firmware versions\n");
+ return -ENOENT;
}

static void prestera_fw_put(struct prestera_fw *fw)
--
2.17.1
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