gve: Remove obsolete checks that rely on page size.
authorJohn Fraker <jfraker@google.com>
Tue, 28 Nov 2023 00:26:46 +0000 (16:26 -0800)
committerJakub Kicinski <kuba@kernel.org>
Wed, 29 Nov 2023 16:32:36 +0000 (08:32 -0800)
These checks are safe to remove as they are no longer enforced by the
backend. Retaining them would require updating them to work differently
with page sizes larger than 4k.

Signed-off-by: Jordan Kimbrough <jrkim@google.com>
Signed-off-by: John Fraker <jfraker@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20231128002648.320892-4-jfraker@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/ethernet/google/gve/gve_adminq.c
drivers/net/ethernet/google/gve/gve_rx.c

index f81ed6f6296a23ad4a4e2ca55e20289d717e1190..bebb7ed113d392d93a55711b7fc12f3c66902c3f 100644 (file)
@@ -727,18 +727,7 @@ static int gve_set_desc_cnt(struct gve_priv *priv,
                            struct gve_device_descriptor *descriptor)
 {
        priv->tx_desc_cnt = be16_to_cpu(descriptor->tx_queue_entries);
-       if (priv->tx_desc_cnt * sizeof(priv->tx->desc[0]) < PAGE_SIZE) {
-               dev_err(&priv->pdev->dev, "Tx desc count %d too low\n",
-                       priv->tx_desc_cnt);
-               return -EINVAL;
-       }
        priv->rx_desc_cnt = be16_to_cpu(descriptor->rx_queue_entries);
-       if (priv->rx_desc_cnt * sizeof(priv->rx->desc.desc_ring[0])
-           < PAGE_SIZE) {
-               dev_err(&priv->pdev->dev, "Rx desc count %d too low\n",
-                       priv->rx_desc_cnt);
-               return -EINVAL;
-       }
        return 0;
 }
 
index 73655347902d2ddedbe896841e7b42b32d0d6a89..82aa185880499f46790880968cdc61812fb4b765 100644 (file)
@@ -211,9 +211,9 @@ static int gve_rx_alloc_ring(struct gve_priv *priv, int idx)
 {
        struct gve_rx_ring *rx = &priv->rx[idx];
        struct device *hdev = &priv->pdev->dev;
-       u32 slots, npages;
        int filled_pages;
        size_t bytes;
+       u32 slots;
        int err;
 
        netif_dbg(priv, drv, priv->dev, "allocating rx ring\n");
@@ -270,12 +270,6 @@ static int gve_rx_alloc_ring(struct gve_priv *priv, int idx)
 
        /* alloc rx desc ring */
        bytes = sizeof(struct gve_rx_desc) * priv->rx_desc_cnt;
-       npages = bytes / PAGE_SIZE;
-       if (npages * PAGE_SIZE != bytes) {
-               err = -EIO;
-               goto abort_with_q_resources;
-       }
-
        rx->desc.desc_ring = dma_alloc_coherent(hdev, bytes, &rx->desc.bus,
                                                GFP_KERNEL);
        if (!rx->desc.desc_ring) {