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authorAlexander Lobakin <alobakin@marvell.com>2020-07-23 01:10:33 +0300
committerDavid S. Miller <davem@davemloft.net>2020-07-23 04:19:03 +0300
commita08c9b2c7ce52709f1915dae0bcd02070f39104e (patch)
tree63a8bf3e854cc6fbdf9df021726038fc1f345011 /drivers/net/ethernet/qlogic/qed/qed_dev.c
parentbdaf98f6d526a8d64b5ff1441924f57fb85ba614 (diff)
downloadlinux-a08c9b2c7ce52709f1915dae0bcd02070f39104e.tar.xz
qed: move chain methods to a separate file
Move chain allocation/freeing functions to a new file to not mix it with hardware-related code. Reported-by: kernel test robot <lkp@intel.com> 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>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_dev.c')
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_dev.c273
1 files changed, 0 insertions, 273 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 6516a1f921da..d9c7a1a6be94 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -4716,279 +4716,6 @@ void qed_hw_remove(struct qed_dev *cdev)
qed_mcp_nvm_info_free(p_hwfn);
}
-static void qed_chain_free_next_ptr(struct qed_dev *cdev,
- struct qed_chain *p_chain)
-{
- void *p_virt = p_chain->p_virt_addr, *p_virt_next = NULL;
- dma_addr_t p_phys = p_chain->p_phys_addr, p_phys_next = 0;
- struct qed_chain_next *p_next;
- u32 size, i;
-
- if (!p_virt)
- return;
-
- size = p_chain->elem_size * p_chain->usable_per_page;
-
- for (i = 0; i < p_chain->page_cnt; i++) {
- if (!p_virt)
- break;
-
- p_next = (struct qed_chain_next *)((u8 *)p_virt + size);
- p_virt_next = p_next->next_virt;
- p_phys_next = HILO_DMA_REGPAIR(p_next->next_phys);
-
- dma_free_coherent(&cdev->pdev->dev,
- QED_CHAIN_PAGE_SIZE, p_virt, p_phys);
-
- p_virt = p_virt_next;
- p_phys = p_phys_next;
- }
-}
-
-static void qed_chain_free_single(struct qed_dev *cdev,
- struct qed_chain *p_chain)
-{
- if (!p_chain->p_virt_addr)
- return;
-
- dma_free_coherent(&cdev->pdev->dev,
- QED_CHAIN_PAGE_SIZE,
- p_chain->p_virt_addr, p_chain->p_phys_addr);
-}
-
-static void qed_chain_free_pbl(struct qed_dev *cdev, struct qed_chain *p_chain)
-{
- struct addr_tbl_entry *pp_addr_tbl = p_chain->pbl.pp_addr_tbl;
- u32 page_cnt = p_chain->page_cnt, i, pbl_size;
-
- if (!pp_addr_tbl)
- return;
-
- for (i = 0; i < page_cnt; i++) {
- if (!pp_addr_tbl[i].virt_addr || !pp_addr_tbl[i].dma_map)
- break;
-
- dma_free_coherent(&cdev->pdev->dev,
- QED_CHAIN_PAGE_SIZE,
- pp_addr_tbl[i].virt_addr,
- pp_addr_tbl[i].dma_map);
- }
-
- pbl_size = page_cnt * QED_CHAIN_PBL_ENTRY_SIZE;
-
- if (!p_chain->b_external_pbl)
- dma_free_coherent(&cdev->pdev->dev,
- pbl_size,
- p_chain->pbl_sp.p_virt_table,
- p_chain->pbl_sp.p_phys_table);
-
- vfree(p_chain->pbl.pp_addr_tbl);
- p_chain->pbl.pp_addr_tbl = NULL;
-}
-
-void qed_chain_free(struct qed_dev *cdev, struct qed_chain *p_chain)
-{
- switch (p_chain->mode) {
- case QED_CHAIN_MODE_NEXT_PTR:
- qed_chain_free_next_ptr(cdev, p_chain);
- break;
- case QED_CHAIN_MODE_SINGLE:
- qed_chain_free_single(cdev, p_chain);
- break;
- case QED_CHAIN_MODE_PBL:
- qed_chain_free_pbl(cdev, p_chain);
- break;
- }
-}
-
-static int
-qed_chain_alloc_sanity_check(struct qed_dev *cdev,
- enum qed_chain_cnt_type cnt_type,
- size_t elem_size, u32 page_cnt)
-{
- u64 chain_size = ELEMS_PER_PAGE(elem_size) * page_cnt;
-
- /* The actual chain size can be larger than the maximal possible value
- * after rounding up the requested elements number to pages, and after
- * taking into acount the unusuable elements (next-ptr elements).
- * The size of a "u16" chain can be (U16_MAX + 1) since the chain
- * size/capacity fields are of a u32 type.
- */
- if ((cnt_type == QED_CHAIN_CNT_TYPE_U16 &&
- chain_size > ((u32)U16_MAX + 1)) ||
- (cnt_type == QED_CHAIN_CNT_TYPE_U32 && chain_size > U32_MAX)) {
- DP_NOTICE(cdev,
- "The actual chain size (0x%llx) is larger than the maximal possible value\n",
- chain_size);
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int
-qed_chain_alloc_next_ptr(struct qed_dev *cdev, struct qed_chain *p_chain)
-{
- void *p_virt = NULL, *p_virt_prev = NULL;
- dma_addr_t p_phys = 0;
- u32 i;
-
- for (i = 0; i < p_chain->page_cnt; i++) {
- p_virt = dma_alloc_coherent(&cdev->pdev->dev,
- QED_CHAIN_PAGE_SIZE,
- &p_phys, GFP_KERNEL);
- if (!p_virt)
- return -ENOMEM;
-
- if (i == 0) {
- qed_chain_init_mem(p_chain, p_virt, p_phys);
- qed_chain_reset(p_chain);
- } else {
- qed_chain_init_next_ptr_elem(p_chain, p_virt_prev,
- p_virt, p_phys);
- }
-
- p_virt_prev = p_virt;
- }
- /* Last page's next element should point to the beginning of the
- * chain.
- */
- qed_chain_init_next_ptr_elem(p_chain, p_virt_prev,
- p_chain->p_virt_addr,
- p_chain->p_phys_addr);
-
- return 0;
-}
-
-static int
-qed_chain_alloc_single(struct qed_dev *cdev, struct qed_chain *p_chain)
-{
- dma_addr_t p_phys = 0;
- void *p_virt = NULL;
-
- p_virt = dma_alloc_coherent(&cdev->pdev->dev,
- QED_CHAIN_PAGE_SIZE, &p_phys, GFP_KERNEL);
- if (!p_virt)
- return -ENOMEM;
-
- qed_chain_init_mem(p_chain, p_virt, p_phys);
- qed_chain_reset(p_chain);
-
- return 0;
-}
-
-static int
-qed_chain_alloc_pbl(struct qed_dev *cdev,
- struct qed_chain *p_chain,
- struct qed_chain_ext_pbl *ext_pbl)
-{
- u32 page_cnt = p_chain->page_cnt, size, i;
- dma_addr_t p_phys = 0, p_pbl_phys = 0;
- struct addr_tbl_entry *pp_addr_tbl;
- u8 *p_pbl_virt = NULL;
- void *p_virt = NULL;
-
- size = page_cnt * sizeof(*pp_addr_tbl);
- pp_addr_tbl = vzalloc(size);
- if (!pp_addr_tbl)
- return -ENOMEM;
-
- /* The allocation of the PBL table is done with its full size, since it
- * is expected to be successive.
- * qed_chain_init_pbl_mem() is called even in a case of an allocation
- * failure, since tbl was previously allocated, and it
- * should be saved to allow its freeing during the error flow.
- */
- size = page_cnt * QED_CHAIN_PBL_ENTRY_SIZE;
-
- if (!ext_pbl) {
- p_pbl_virt = dma_alloc_coherent(&cdev->pdev->dev,
- size, &p_pbl_phys, GFP_KERNEL);
- } else {
- p_pbl_virt = ext_pbl->p_pbl_virt;
- p_pbl_phys = ext_pbl->p_pbl_phys;
- p_chain->b_external_pbl = true;
- }
-
- qed_chain_init_pbl_mem(p_chain, p_pbl_virt, p_pbl_phys, pp_addr_tbl);
- if (!p_pbl_virt)
- return -ENOMEM;
-
- for (i = 0; i < page_cnt; i++) {
- p_virt = dma_alloc_coherent(&cdev->pdev->dev,
- QED_CHAIN_PAGE_SIZE,
- &p_phys, GFP_KERNEL);
- if (!p_virt)
- return -ENOMEM;
-
- if (i == 0) {
- qed_chain_init_mem(p_chain, p_virt, p_phys);
- qed_chain_reset(p_chain);
- }
-
- /* Fill the PBL table with the physical address of the page */
- *(dma_addr_t *)p_pbl_virt = p_phys;
- /* Keep the virtual address of the page */
- p_chain->pbl.pp_addr_tbl[i].virt_addr = p_virt;
- p_chain->pbl.pp_addr_tbl[i].dma_map = p_phys;
-
- p_pbl_virt += QED_CHAIN_PBL_ENTRY_SIZE;
- }
-
- return 0;
-}
-
-int qed_chain_alloc(struct qed_dev *cdev,
- enum qed_chain_use_mode intended_use,
- enum qed_chain_mode mode,
- enum qed_chain_cnt_type cnt_type,
- u32 num_elems,
- size_t elem_size,
- struct qed_chain *p_chain,
- struct qed_chain_ext_pbl *ext_pbl)
-{
- u32 page_cnt;
- int rc = 0;
-
- if (mode == QED_CHAIN_MODE_SINGLE)
- page_cnt = 1;
- else
- page_cnt = QED_CHAIN_PAGE_CNT(num_elems, elem_size, mode);
-
- rc = qed_chain_alloc_sanity_check(cdev, cnt_type, elem_size, page_cnt);
- if (rc) {
- 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",
- intended_use, mode, cnt_type, num_elems, elem_size);
- return rc;
- }
-
- qed_chain_init_params(p_chain, page_cnt, (u8) elem_size, intended_use,
- mode, cnt_type);
-
- switch (mode) {
- case QED_CHAIN_MODE_NEXT_PTR:
- rc = qed_chain_alloc_next_ptr(cdev, p_chain);
- break;
- case QED_CHAIN_MODE_SINGLE:
- rc = qed_chain_alloc_single(cdev, p_chain);
- break;
- case QED_CHAIN_MODE_PBL:
- rc = qed_chain_alloc_pbl(cdev, p_chain, ext_pbl);
- break;
- }
- if (rc)
- goto nomem;
-
- return 0;
-
-nomem:
- qed_chain_free(cdev, p_chain);
- return rc;
-}
-
int qed_fw_l2_queue(struct qed_hwfn *p_hwfn, u16 src_id, u16 *dst_id)
{
if (src_id >= RESC_NUM(p_hwfn, QED_L2_QUEUE)) {