From f2aefd20b02d83b8565c867c38eedd88853967e9 Mon Sep 17 00:00:00 2001 From: Alexander Lobakin Date: Thu, 23 Jul 2020 01:10:40 +0300 Subject: qed: optimize common chain accessors Constify chain pointers and refactor qed_chain_get_elem_left{,u32}() a bit. Signed-off-by: Alexander Lobakin Signed-off-by: Igor Russkikh Signed-off-by: Michal Kalderon Signed-off-by: David S. Miller --- include/linux/qed/qed_chain.h | 60 ++++++++++++++++++++++++------------------- 1 file changed, 33 insertions(+), 27 deletions(-) (limited to 'include/linux/qed') diff --git a/include/linux/qed/qed_chain.h b/include/linux/qed/qed_chain.h index 8a96c361cc19..434479e2ab65 100644 --- a/include/linux/qed/qed_chain.h +++ b/include/linux/qed/qed_chain.h @@ -182,73 +182,79 @@ struct qed_chain_init_params { ((p)->cnt_type == QED_CHAIN_CNT_TYPE_U32) /* Accessors */ -static inline u16 qed_chain_get_prod_idx(struct qed_chain *p_chain) + +static inline u16 qed_chain_get_prod_idx(const struct qed_chain *chain) +{ + return chain->u.chain16.prod_idx; +} + +static inline u16 qed_chain_get_cons_idx(const struct qed_chain *chain) { - return p_chain->u.chain16.prod_idx; + return chain->u.chain16.cons_idx; } -static inline u16 qed_chain_get_cons_idx(struct qed_chain *p_chain) +static inline u32 qed_chain_get_prod_idx_u32(const struct qed_chain *chain) { - return p_chain->u.chain16.cons_idx; + return chain->u.chain32.prod_idx; } -static inline u32 qed_chain_get_cons_idx_u32(struct qed_chain *p_chain) +static inline u32 qed_chain_get_cons_idx_u32(const struct qed_chain *chain) { - return p_chain->u.chain32.cons_idx; + return chain->u.chain32.cons_idx; } -static inline u16 qed_chain_get_elem_left(struct qed_chain *p_chain) +static inline u16 qed_chain_get_elem_left(const struct qed_chain *chain) { - u16 elem_per_page = p_chain->elem_per_page; - u32 prod = p_chain->u.chain16.prod_idx; - u32 cons = p_chain->u.chain16.cons_idx; + u32 prod = qed_chain_get_prod_idx(chain); + u32 cons = qed_chain_get_cons_idx(chain); + u16 elem_per_page = chain->elem_per_page; u16 used; if (prod < cons) prod += (u32)U16_MAX + 1; used = (u16)(prod - cons); - if (p_chain->mode == QED_CHAIN_MODE_NEXT_PTR) - used -= prod / elem_per_page - cons / elem_per_page; + if (chain->mode == QED_CHAIN_MODE_NEXT_PTR) + used -= (u16)(prod / elem_per_page - cons / elem_per_page); - return (u16)(p_chain->capacity - used); + return (u16)(chain->capacity - used); } -static inline u32 qed_chain_get_elem_left_u32(struct qed_chain *p_chain) +static inline u32 qed_chain_get_elem_left_u32(const struct qed_chain *chain) { - u16 elem_per_page = p_chain->elem_per_page; - u64 prod = p_chain->u.chain32.prod_idx; - u64 cons = p_chain->u.chain32.cons_idx; + u64 prod = qed_chain_get_prod_idx_u32(chain); + u64 cons = qed_chain_get_cons_idx_u32(chain); + u16 elem_per_page = chain->elem_per_page; u32 used; if (prod < cons) prod += (u64)U32_MAX + 1; used = (u32)(prod - cons); - if (p_chain->mode == QED_CHAIN_MODE_NEXT_PTR) + if (chain->mode == QED_CHAIN_MODE_NEXT_PTR) used -= (u32)(prod / elem_per_page - cons / elem_per_page); - return p_chain->capacity - used; + return chain->capacity - used; } -static inline u16 qed_chain_get_usable_per_page(struct qed_chain *p_chain) +static inline u16 qed_chain_get_usable_per_page(const struct qed_chain *chain) { - return p_chain->usable_per_page; + return chain->usable_per_page; } -static inline u8 qed_chain_get_unusable_per_page(struct qed_chain *p_chain) +static inline u8 qed_chain_get_unusable_per_page(const struct qed_chain *chain) { - return p_chain->elem_unusable; + return chain->elem_unusable; } -static inline u32 qed_chain_get_page_cnt(struct qed_chain *p_chain) +static inline u32 qed_chain_get_page_cnt(const struct qed_chain *chain) { - return p_chain->page_cnt; + return chain->page_cnt; } -static inline dma_addr_t qed_chain_get_pbl_phys(struct qed_chain *p_chain) +static inline dma_addr_t qed_chain_get_pbl_phys(const struct qed_chain *chain) { - return p_chain->pbl_sp.table_phys; + return chain->pbl_sp.table_phys; } /** -- cgit v1.2.3-58-ga151