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author | 2020-07-23 01:10:37 +0300 | |
---|---|---|
committer | 2020-07-22 18:19:03 -0700 | |
commit | c3a321b06a806614350db4bda04215fee796f0fb (patch) | |
tree | f0dc8d87e56847087042b5c565d227e9c05609be | |
parent | qed: move chain initialization inlines next to allocation functions (diff) | |
download | linux-c3a321b06a80.tar.gz linux-c3a321b06a80.tar.bz2 linux-c3a321b06a80.zip |
qed: simplify initialization of the chains with an external PBL
Fill PBL table parameters for chains with an external PBL data earlier on
qed_chain_init_params() rather than on allocation itself. This simplifies
allocation code and allows to extend struct ext_pbl for other chain types.
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_chain.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_chain.c b/drivers/net/ethernet/qlogic/qed/qed_chain.c index b60ec3e4654c..6effee3b50f4 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_chain.c +++ b/drivers/net/ethernet/qlogic/qed/qed_chain.c @@ -11,7 +11,8 @@ static void qed_chain_init_params(struct qed_chain *chain, u32 page_cnt, u8 elem_size, enum qed_chain_use_mode intended_use, enum qed_chain_mode mode, - enum qed_chain_cnt_type cnt_type) + enum qed_chain_cnt_type cnt_type, + const struct qed_chain_ext_pbl *ext_pbl) { memset(chain, 0, sizeof(*chain)); @@ -31,6 +32,13 @@ static void qed_chain_init_params(struct qed_chain *chain, chain->page_cnt = page_cnt; chain->capacity = chain->usable_per_page * page_cnt; chain->size = chain->elem_per_page * page_cnt; + + if (ext_pbl && ext_pbl->p_pbl_virt) { + chain->pbl_sp.table_virt = ext_pbl->p_pbl_virt; + chain->pbl_sp.table_phys = ext_pbl->p_pbl_phys; + + chain->b_external_pbl = true; + } } static void qed_chain_init_next_ptr_elem(const struct qed_chain *chain, @@ -230,8 +238,7 @@ static int qed_chain_alloc_single(struct qed_dev *cdev, return 0; } -static int qed_chain_alloc_pbl(struct qed_dev *cdev, struct qed_chain *chain, - struct qed_chain_ext_pbl *ext_pbl) +static int qed_chain_alloc_pbl(struct qed_dev *cdev, struct qed_chain *chain) { struct device *dev = &cdev->pdev->dev; struct addr_tbl_entry *addr_tbl; @@ -253,21 +260,14 @@ static int qed_chain_alloc_pbl(struct qed_dev *cdev, struct qed_chain *chain, chain->pbl.pp_addr_tbl = addr_tbl; - if (ext_pbl) { - size = 0; - pbl_virt = ext_pbl->p_pbl_virt; - pbl_phys = ext_pbl->p_pbl_phys; + if (chain->b_external_pbl) + goto alloc_pages; - chain->b_external_pbl = true; - } else { - size = array_size(page_cnt, sizeof(*pbl_virt)); - if (unlikely(size == SIZE_MAX)) - return -EOVERFLOW; - - pbl_virt = dma_alloc_coherent(dev, size, &pbl_phys, - GFP_KERNEL); - } + size = array_size(page_cnt, sizeof(*pbl_virt)); + if (unlikely(size == SIZE_MAX)) + return -EOVERFLOW; + pbl_virt = dma_alloc_coherent(dev, size, &pbl_phys, GFP_KERNEL); if (!pbl_virt) return -ENOMEM; @@ -275,6 +275,7 @@ static int qed_chain_alloc_pbl(struct qed_dev *cdev, struct qed_chain *chain, chain->pbl_sp.table_phys = pbl_phys; chain->pbl_sp.table_size = size; +alloc_pages: for (i = 0; i < page_cnt; i++) { virt = dma_alloc_coherent(dev, QED_CHAIN_PAGE_SIZE, &phys, GFP_KERNEL); @@ -325,7 +326,7 @@ int qed_chain_alloc(struct qed_dev *cdev, } qed_chain_init_params(chain, page_cnt, elem_size, intended_use, mode, - cnt_type); + cnt_type, ext_pbl); switch (mode) { case QED_CHAIN_MODE_NEXT_PTR: @@ -335,7 +336,7 @@ int qed_chain_alloc(struct qed_dev *cdev, rc = qed_chain_alloc_single(cdev, chain); break; case QED_CHAIN_MODE_PBL: - rc = qed_chain_alloc_pbl(cdev, chain, ext_pbl); + rc = qed_chain_alloc_pbl(cdev, chain); break; default: return -EINVAL; |