From 667ac333dbb7e265b3f5bc4bc94e236f64682c86 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Thu, 11 Jul 2024 15:07:05 -0700 Subject: eth: bnxt: allow deleting RSS contexts when the device is down Contexts get deleted from FW when the device is down, but they are kept in SW and re-added back on open. bnxt_set_rxfh_context() apparently does not want to deal with complexity of dealing with both the device down and device up cases. This is perhaps acceptable for creating new contexts, but not being able to delete contexts makes core-driven cleanups messy. Specifically with the new RSS API core will try to delete contexts automatically after bringing the device down. Support the delete-while-down case. Skip the FW logic and delete just the driver state. Reviewed-by: Pavan Chebbi Link: https://patch.msgid.link/20240711220713.283778-4-kuba@kernel.org Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 10 ++++++---- drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 6 ++++-- 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 80fce0aaad66..e8965cf743fc 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -10210,10 +10210,12 @@ void bnxt_del_one_rss_ctx(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx, struct bnxt_ntuple_filter *ntp_fltr; int i; - bnxt_hwrm_vnic_free_one(bp, &rss_ctx->vnic); - for (i = 0; i < BNXT_MAX_CTX_PER_VNIC; i++) { - if (vnic->fw_rss_cos_lb_ctx[i] != INVALID_HW_RING_ID) - bnxt_hwrm_vnic_ctx_free_one(bp, vnic, i); + if (netif_running(bp->dev)) { + bnxt_hwrm_vnic_free_one(bp, &rss_ctx->vnic); + for (i = 0; i < BNXT_MAX_CTX_PER_VNIC; i++) { + if (vnic->fw_rss_cos_lb_ctx[i] != INVALID_HW_RING_ID) + bnxt_hwrm_vnic_ctx_free_one(bp, vnic, i); + } } if (!all) return; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index 4d53ec7adc61..846a19b5f58d 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -1874,6 +1874,7 @@ static int bnxt_set_rxfh_context(struct bnxt *bp, struct bnxt_rss_ctx *rss_ctx; struct bnxt_vnic_info *vnic; bool modify = false; + bool delete; int bit_id; int rc; @@ -1882,7 +1883,8 @@ static int bnxt_set_rxfh_context(struct bnxt *bp, return -EOPNOTSUPP; } - if (!netif_running(bp->dev)) { + delete = *rss_context != ETH_RXFH_CONTEXT_ALLOC && rxfh->rss_delete; + if (!netif_running(bp->dev) && !delete) { NL_SET_ERR_MSG_MOD(extack, "Unable to set RSS contexts when interface is down"); return -EAGAIN; } @@ -1894,7 +1896,7 @@ static int bnxt_set_rxfh_context(struct bnxt *bp, *rss_context); return -EINVAL; } - if (*rss_context && rxfh->rss_delete) { + if (delete) { bnxt_del_one_rss_ctx(bp, rss_ctx, true); return 0; } -- cgit v1.2.3-58-ga151