diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_chain.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_chain.c b/drivers/net/ethernet/qlogic/qed/qed_chain.c index a9ff15b9d8c0..b60ec3e4654c 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_chain.c +++ b/drivers/net/ethernet/qlogic/qed/qed_chain.c @@ -7,6 +7,53 @@ #include "qed_dev_api.h" +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) +{ + memset(chain, 0, sizeof(*chain)); + + chain->elem_size = elem_size; + chain->intended_use = intended_use; + chain->mode = mode; + chain->cnt_type = cnt_type; + + chain->elem_per_page = ELEMS_PER_PAGE(elem_size); + chain->usable_per_page = USABLE_ELEMS_PER_PAGE(elem_size, mode); + chain->elem_unusable = UNUSABLE_ELEMS_PER_PAGE(elem_size, mode); + + chain->elem_per_page_mask = chain->elem_per_page - 1; + chain->next_page_mask = chain->usable_per_page & + chain->elem_per_page_mask; + + chain->page_cnt = page_cnt; + chain->capacity = chain->usable_per_page * page_cnt; + chain->size = chain->elem_per_page * page_cnt; +} + +static void qed_chain_init_next_ptr_elem(const struct qed_chain *chain, + void *virt_curr, void *virt_next, + dma_addr_t phys_next) +{ + struct qed_chain_next *next; + u32 size; + + size = chain->elem_size * chain->usable_per_page; + next = virt_curr + size; + + DMA_REGPAIR_LE(next->next_phys, phys_next); + next->next_virt = virt_next; +} + +static void qed_chain_init_mem(struct qed_chain *chain, void *virt_addr, + dma_addr_t phys_addr) +{ + chain->p_virt_addr = virt_addr; + chain->p_phys_addr = phys_addr; +} + static void qed_chain_free_next_ptr(struct qed_dev *cdev, struct qed_chain *chain) { |