From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver
---
kernel/drivers/net/ethernet/mellanox/mlx4/mr.c | 183 ---------------------------------------------
1 files changed, 0 insertions(+), 183 deletions(-)
diff --git a/kernel/drivers/net/ethernet/mellanox/mlx4/mr.c b/kernel/drivers/net/ethernet/mellanox/mlx4/mr.c
index cfa0bba..d744478 100644
--- a/kernel/drivers/net/ethernet/mellanox/mlx4/mr.c
+++ b/kernel/drivers/net/ethernet/mellanox/mlx4/mr.c
@@ -966,189 +966,6 @@
mlx4_bitmap_cleanup(&mr_table->mpt_bitmap);
}
-static inline int mlx4_check_fmr(struct mlx4_fmr *fmr, u64 *page_list,
- int npages, u64 iova)
-{
- int i, page_mask;
-
- if (npages > fmr->max_pages)
- return -EINVAL;
-
- page_mask = (1 << fmr->page_shift) - 1;
-
- /* We are getting page lists, so va must be page aligned. */
- if (iova & page_mask)
- return -EINVAL;
-
- /* Trust the user not to pass misaligned data in page_list */
- if (0)
- for (i = 0; i < npages; ++i) {
- if (page_list[i] & ~page_mask)
- return -EINVAL;
- }
-
- if (fmr->maps >= fmr->max_maps)
- return -EINVAL;
-
- return 0;
-}
-
-int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
- int npages, u64 iova, u32 *lkey, u32 *rkey)
-{
- u32 key;
- int i, err;
-
- err = mlx4_check_fmr(fmr, page_list, npages, iova);
- if (err)
- return err;
-
- ++fmr->maps;
-
- key = key_to_hw_index(fmr->mr.key);
- key += dev->caps.num_mpts;
- *lkey = *rkey = fmr->mr.key = hw_index_to_key(key);
-
- *(u8 *) fmr->mpt = MLX4_MPT_STATUS_SW;
-
- /* Make sure MPT status is visible before writing MTT entries */
- wmb();
-
- dma_sync_single_for_cpu(&dev->persist->pdev->dev, fmr->dma_handle,
- npages * sizeof(u64), DMA_TO_DEVICE);
-
- for (i = 0; i < npages; ++i)
- fmr->mtts[i] = cpu_to_be64(page_list[i] | MLX4_MTT_FLAG_PRESENT);
-
- dma_sync_single_for_device(&dev->persist->pdev->dev, fmr->dma_handle,
- npages * sizeof(u64), DMA_TO_DEVICE);
-
- fmr->mpt->key = cpu_to_be32(key);
- fmr->mpt->lkey = cpu_to_be32(key);
- fmr->mpt->length = cpu_to_be64(npages * (1ull << fmr->page_shift));
- fmr->mpt->start = cpu_to_be64(iova);
-
- /* Make MTT entries are visible before setting MPT status */
- wmb();
-
- *(u8 *) fmr->mpt = MLX4_MPT_STATUS_HW;
-
- /* Make sure MPT status is visible before consumer can use FMR */
- wmb();
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_map_phys_fmr);
-
-int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
- int max_maps, u8 page_shift, struct mlx4_fmr *fmr)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err = -ENOMEM;
-
- if (max_maps > dev->caps.max_fmr_maps)
- return -EINVAL;
-
- if (page_shift < (ffs(dev->caps.page_size_cap) - 1) || page_shift >= 32)
- return -EINVAL;
-
- /* All MTTs must fit in the same page */
- if (max_pages * sizeof(*fmr->mtts) > PAGE_SIZE)
- return -EINVAL;
-
- fmr->page_shift = page_shift;
- fmr->max_pages = max_pages;
- fmr->max_maps = max_maps;
- fmr->maps = 0;
-
- err = mlx4_mr_alloc(dev, pd, 0, 0, access, max_pages,
- page_shift, &fmr->mr);
- if (err)
- return err;
-
- fmr->mtts = mlx4_table_find(&priv->mr_table.mtt_table,
- fmr->mr.mtt.offset,
- &fmr->dma_handle);
-
- if (!fmr->mtts) {
- err = -ENOMEM;
- goto err_free;
- }
-
- return 0;
-
-err_free:
- (void) mlx4_mr_free(dev, &fmr->mr);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_fmr_alloc);
-
-int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err;
-
- err = mlx4_mr_enable(dev, &fmr->mr);
- if (err)
- return err;
-
- fmr->mpt = mlx4_table_find(&priv->mr_table.dmpt_table,
- key_to_hw_index(fmr->mr.key), NULL);
- if (!fmr->mpt)
- return -ENOMEM;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_fmr_enable);
-
-void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
- u32 *lkey, u32 *rkey)
-{
- if (!fmr->maps)
- return;
-
- /* To unmap: it is sufficient to take back ownership from HW */
- *(u8 *)fmr->mpt = MLX4_MPT_STATUS_SW;
-
- /* Make sure MPT status is visible */
- wmb();
-
- fmr->maps = 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_fmr_unmap);
-
-int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr)
-{
- int ret;
-
- if (fmr->maps)
- return -EBUSY;
- if (fmr->mr.enabled == MLX4_MPT_EN_HW) {
- /* In case of FMR was enabled and unmapped
- * make sure to give ownership of MPT back to HW
- * so HW2SW_MPT command will success.
- */
- *(u8 *)fmr->mpt = MLX4_MPT_STATUS_SW;
- /* Make sure MPT status is visible before changing MPT fields */
- wmb();
- fmr->mpt->length = 0;
- fmr->mpt->start = 0;
- /* Make sure MPT data is visible after changing MPT status */
- wmb();
- *(u8 *)fmr->mpt = MLX4_MPT_STATUS_HW;
- /* make sure MPT status is visible */
- wmb();
- }
-
- ret = mlx4_mr_free(dev, &fmr->mr);
- if (ret)
- return ret;
- fmr->mr.enabled = MLX4_MPT_DISABLED;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_fmr_free);
-
int mlx4_SYNC_TPT(struct mlx4_dev *dev)
{
return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_SYNC_TPT,
--
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