From 155065866bc36f20061c55fd2ca287a466911b16 Mon Sep 17 00:00:00 2001 From: Alexander Lobakin Date: Thu, 23 Jul 2020 01:10:39 +0300 Subject: qed: add support for different page sizes for chains Extend current infrastructure to store chain page size in a struct and use it in all functions instead of fixed QED_CHAIN_PAGE_SIZE. Its value remains the default one, but can be overridden in qed_chain_init_params before chain allocation. Signed-off-by: Alexander Lobakin Signed-off-by: Igor Russkikh Signed-off-by: Michal Kalderon Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_chain.c | 28 ++++++++++++++++++---------- 1 file changed, 18 insertions(+), 10 deletions(-) (limited to 'drivers/net/ethernet/qlogic') diff --git a/drivers/net/ethernet/qlogic/qed/qed_chain.c b/drivers/net/ethernet/qlogic/qed/qed_chain.c index a68ee4b3dbbc..f8efd36d66e0 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_chain.c +++ b/drivers/net/ethernet/qlogic/qed/qed_chain.c @@ -18,8 +18,10 @@ static void qed_chain_init(struct qed_chain *chain, chain->mode = params->mode; chain->cnt_type = params->cnt_type; - chain->elem_per_page = ELEMS_PER_PAGE(params->elem_size); + chain->elem_per_page = ELEMS_PER_PAGE(params->elem_size, + params->page_size); chain->usable_per_page = USABLE_ELEMS_PER_PAGE(params->elem_size, + params->page_size, params->mode); chain->elem_unusable = UNUSABLE_ELEMS_PER_PAGE(params->elem_size, params->mode); @@ -28,6 +30,7 @@ static void qed_chain_init(struct qed_chain *chain, chain->next_page_mask = chain->usable_per_page & chain->elem_per_page_mask; + chain->page_size = params->page_size; chain->page_cnt = page_cnt; chain->capacity = chain->usable_per_page * page_cnt; chain->size = chain->elem_per_page * page_cnt; @@ -82,7 +85,7 @@ static void qed_chain_free_next_ptr(struct qed_dev *cdev, virt_next = next->next_virt; phys_next = HILO_DMA_REGPAIR(next->next_phys); - dma_free_coherent(dev, QED_CHAIN_PAGE_SIZE, virt, phys); + dma_free_coherent(dev, chain->page_size, virt, phys); virt = virt_next; phys = phys_next; @@ -95,7 +98,7 @@ static void qed_chain_free_single(struct qed_dev *cdev, if (!chain->p_virt_addr) return; - dma_free_coherent(&cdev->pdev->dev, QED_CHAIN_PAGE_SIZE, + dma_free_coherent(&cdev->pdev->dev, chain->page_size, chain->p_virt_addr, chain->p_phys_addr); } @@ -113,7 +116,7 @@ static void qed_chain_free_pbl(struct qed_dev *cdev, struct qed_chain *chain) if (!entry->virt_addr) break; - dma_free_coherent(dev, QED_CHAIN_PAGE_SIZE, entry->virt_addr, + dma_free_coherent(dev, chain->page_size, entry->virt_addr, entry->dma_map); } @@ -158,7 +161,7 @@ qed_chain_alloc_sanity_check(struct qed_dev *cdev, { u64 chain_size; - chain_size = ELEMS_PER_PAGE(params->elem_size); + chain_size = ELEMS_PER_PAGE(params->elem_size, params->page_size); chain_size *= page_cnt; if (!chain_size) @@ -201,7 +204,7 @@ static int qed_chain_alloc_next_ptr(struct qed_dev *cdev, u32 i; for (i = 0; i < chain->page_cnt; i++) { - virt = dma_alloc_coherent(dev, QED_CHAIN_PAGE_SIZE, &phys, + virt = dma_alloc_coherent(dev, chain->page_size, &phys, GFP_KERNEL); if (!virt) return -ENOMEM; @@ -232,7 +235,7 @@ static int qed_chain_alloc_single(struct qed_dev *cdev, dma_addr_t phys; void *virt; - virt = dma_alloc_coherent(&cdev->pdev->dev, QED_CHAIN_PAGE_SIZE, + virt = dma_alloc_coherent(&cdev->pdev->dev, chain->page_size, &phys, GFP_KERNEL); if (!virt) return -ENOMEM; @@ -282,7 +285,7 @@ static int qed_chain_alloc_pbl(struct qed_dev *cdev, struct qed_chain *chain) alloc_pages: for (i = 0; i < page_cnt; i++) { - virt = dma_alloc_coherent(dev, QED_CHAIN_PAGE_SIZE, &phys, + virt = dma_alloc_coherent(dev, chain->page_size, &phys, GFP_KERNEL); if (!virt) return -ENOMEM; @@ -318,11 +321,15 @@ int qed_chain_alloc(struct qed_dev *cdev, struct qed_chain *chain, u32 page_cnt; int rc; + if (!params->page_size) + params->page_size = QED_CHAIN_PAGE_SIZE; + if (params->mode == QED_CHAIN_MODE_SINGLE) page_cnt = 1; else page_cnt = QED_CHAIN_PAGE_CNT(params->num_elems, params->elem_size, + params->page_size, params->mode); rc = qed_chain_alloc_sanity_check(cdev, params, page_cnt); @@ -330,9 +337,10 @@ int qed_chain_alloc(struct qed_dev *cdev, struct qed_chain *chain, DP_NOTICE(cdev, "Cannot allocate a chain with the given arguments:\n"); DP_NOTICE(cdev, - "[use_mode %d, mode %d, cnt_type %d, num_elems %d, elem_size %zu]\n", + "[use_mode %d, mode %d, cnt_type %d, num_elems %d, elem_size %zu, page_size %u]\n", params->intended_use, params->mode, params->cnt_type, - params->num_elems, params->elem_size); + params->num_elems, params->elem_size, + params->page_size); return rc; } -- cgit v1.2.3