The RX path allocations for rxbufs_pre, das_pre, and rxq scale with queue count and queue depth. With high queue counts and depth, these can exceed what kmalloc can reliably provide from physically contiguous memory under fragmentation. Switch these from kmalloc to kvmalloc variants so the allocator transparently falls back to vmalloc when contiguous memory is scarce, and update the corresponding frees to kvfree. Signed-off-by: Aditya Garg Reviewed-by: Haiyang Zhang --- drivers/net/ethernet/microsoft/mana/mana_en.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c index 49ee77b0939a..585d891bbbac 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_en.c +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c @@ -685,11 +685,11 @@ void mana_pre_dealloc_rxbufs(struct mana_port_context *mpc) put_page(virt_to_head_page(mpc->rxbufs_pre[i])); } - kfree(mpc->das_pre); + kvfree(mpc->das_pre); mpc->das_pre = NULL; out2: - kfree(mpc->rxbufs_pre); + kvfree(mpc->rxbufs_pre); mpc->rxbufs_pre = NULL; out1: @@ -806,11 +806,11 @@ int mana_pre_alloc_rxbufs(struct mana_port_context *mpc, int new_mtu, int num_qu num_rxb = num_queues * mpc->rx_queue_size; WARN(mpc->rxbufs_pre, "mana rxbufs_pre exists\n"); - mpc->rxbufs_pre = kmalloc_array(num_rxb, sizeof(void *), GFP_KERNEL); + mpc->rxbufs_pre = kvmalloc_array(num_rxb, sizeof(void *), GFP_KERNEL); if (!mpc->rxbufs_pre) goto error; - mpc->das_pre = kmalloc_objs(dma_addr_t, num_rxb); + mpc->das_pre = kvmalloc_objs(dma_addr_t, num_rxb); if (!mpc->das_pre) goto error; @@ -2527,7 +2527,7 @@ static void mana_destroy_rxq(struct mana_port_context *apc, if (rxq->gdma_rq) mana_gd_destroy_queue(gc, rxq->gdma_rq); - kfree(rxq); + kvfree(rxq); } static int mana_fill_rx_oob(struct mana_recv_buf_oob *rx_oob, u32 mem_key, @@ -2667,7 +2667,7 @@ static struct mana_rxq *mana_create_rxq(struct mana_port_context *apc, gc = gd->gdma_context; - rxq = kzalloc_flex(*rxq, rx_oobs, apc->rx_queue_size); + rxq = kvzalloc_flex(*rxq, rx_oobs, apc->rx_queue_size); if (!rxq) return NULL; -- 2.43.0