[PATCH net-next v3 3/3] bnxt_en: implement callbacks for devlink selftests

From: Vikas Gupta
Date: Mon Jul 18 2022 - 02:22:06 EST


Add callbacks
=============
.selftest_check: returns true for flash selftest.
.selftest_run: runs a flash selftest.

Signed-off-by: Vikas Gupta <vikas.gupta@xxxxxxxxxxxx>
Reviewed-by: Michael Chan <michael.chan@xxxxxxxxxxxx>
Reviewed-by: Andy Gospodarek <andrew.gospodarek@xxxxxxxxxxxx>
---
.../net/ethernet/broadcom/bnxt/bnxt_devlink.c | 60 +++++++++++++++++++
1 file changed, 60 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index 6b3d4f4c2a75..927cf368d856 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -20,6 +20,8 @@
#include "bnxt_ulp.h"
#include "bnxt_ptp.h"
#include "bnxt_coredump.h"
+#include "bnxt_nvm_defs.h"
+#include "bnxt_ethtool.h"

static void __bnxt_fw_recover(struct bnxt *bp)
{
@@ -610,6 +612,62 @@ static int bnxt_dl_reload_up(struct devlink *dl, enum devlink_reload_action acti
return rc;
}

+static bool bnxt_nvm_test(struct bnxt *bp, struct netlink_ext_ack *extack)
+{
+ u32 datalen;
+ u16 index;
+ u8 *buf;
+
+ if (bnxt_find_nvram_item(bp->dev, BNX_DIR_TYPE_VPD,
+ BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE,
+ &index, NULL, &datalen) || !datalen) {
+ NL_SET_ERR_MSG_MOD(extack, "nvm test vpd entry error");
+ return false;
+ }
+
+ buf = kzalloc(datalen, GFP_KERNEL);
+ if (!buf) {
+ NL_SET_ERR_MSG_MOD(extack, "insufficient memory for nvm test");
+ return false;
+ }
+
+ if (bnxt_get_nvram_item(bp->dev, index, 0, datalen, buf)) {
+ NL_SET_ERR_MSG_MOD(extack, "nvm test vpd read error");
+ goto err;
+ }
+
+ if (bnxt_flash_nvram(bp->dev, BNX_DIR_TYPE_VPD, BNX_DIR_ORDINAL_FIRST,
+ BNX_DIR_EXT_NONE, 0, 0, buf, datalen)) {
+ NL_SET_ERR_MSG_MOD(extack, "nvm test vpd write error");
+ goto err;
+ }
+
+ return true;
+
+err:
+ kfree(buf);
+ return false;
+}
+
+static bool bnxt_dl_selftest_check(struct devlink *dl, int test_id,
+ struct netlink_ext_ack *extack)
+{
+ return (test_id == DEVLINK_SELFTEST_ATTR_FLASH);
+}
+
+static u8 bnxt_dl_selftest_run(struct devlink *dl, int test_id,
+ struct netlink_ext_ack *extack)
+{
+ struct bnxt *bp = bnxt_get_bp_from_dl(dl);
+
+ if (test_id == DEVLINK_SELFTEST_ATTR_FLASH) {
+ return (bnxt_nvm_test(bp, extack) ? DEVLINK_SELFTEST_PASS :
+ DEVLINK_SELFTEST_FAIL);
+ }
+
+ return DEVLINK_SELFTEST_SKIP;
+}
+
static const struct devlink_ops bnxt_dl_ops = {
#ifdef CONFIG_BNXT_SRIOV
.eswitch_mode_set = bnxt_dl_eswitch_mode_set,
@@ -622,6 +680,8 @@ static const struct devlink_ops bnxt_dl_ops = {
.reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET),
.reload_down = bnxt_dl_reload_down,
.reload_up = bnxt_dl_reload_up,
+ .selftest_check = bnxt_dl_selftest_check,
+ .selftest_run = bnxt_dl_selftest_run,
};

static const struct devlink_ops bnxt_vf_dl_ops;
--
2.31.1

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