diff options
| author |   Alexander Lobakin <alobakin@marvell.com> | 2020-07-23 01:10:39 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-07-22 18:19:03 -0700 |
| commit | 155065866bc36f20061c55fd2ca287a466911b16 (patch) | |
| tree | 96fc377365da74e239e44e26875680d5f6878b85 /include/linux/qed | |
| parent | qed: simplify chain allocation with init params struct (diff) | |
| download | linux-dev-155065866bc36f20061c55fd2ca287a466911b16.tar.xz linux-dev-155065866bc36f20061c55fd2ca287a466911b16.zip | |
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 <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 'include/linux/qed')
| -rw-r--r-- | include/linux/qed/qed_chain.h | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/include/linux/qed/qed_chain.h b/include/linux/qed/qed_chain.h index f5cfee0934e5..8a96c361cc19 100644 --- a/include/linux/qed/qed_chain.h +++ b/include/linux/qed/qed_chain.h @@ -11,6 +11,7 @@ #include <asm/byteorder.h> #include <linux/kernel.h> #include <linux/list.h> +#include <linux/sizes.h> #include <linux/slab.h> #include <linux/qed/common_hsi.h> @@ -120,6 +121,8 @@ struct qed_chain { * but isn't involved in regular functionality. */ + u32 page_size; + /* Base address of a pre-allocated buffer for pbl */ struct { __le64 *table_virt; @@ -147,6 +150,7 @@ struct qed_chain_init_params { enum qed_chain_use_mode intended_use; enum qed_chain_cnt_type cnt_type; + u32 page_size; u32 num_elems; size_t elem_size; @@ -154,22 +158,23 @@ struct qed_chain_init_params { dma_addr_t ext_pbl_phys; }; -#define QED_CHAIN_PAGE_SIZE 0x1000 +#define QED_CHAIN_PAGE_SIZE SZ_4K -#define ELEMS_PER_PAGE(elem_size) \ - (QED_CHAIN_PAGE_SIZE / (elem_size)) +#define ELEMS_PER_PAGE(elem_size, page_size) \ + ((page_size) / (elem_size)) #define UNUSABLE_ELEMS_PER_PAGE(elem_size, mode) \ (((mode) == QED_CHAIN_MODE_NEXT_PTR) ? \ (u8)(1 + ((sizeof(struct qed_chain_next) - 1) / (elem_size))) : \ 0) -#define USABLE_ELEMS_PER_PAGE(elem_size, mode) \ - ((u32)(ELEMS_PER_PAGE(elem_size) - \ +#define USABLE_ELEMS_PER_PAGE(elem_size, page_size, mode) \ + ((u32)(ELEMS_PER_PAGE((elem_size), (page_size)) - \ UNUSABLE_ELEMS_PER_PAGE((elem_size), (mode)))) -#define QED_CHAIN_PAGE_CNT(elem_cnt, elem_size, mode) \ - DIV_ROUND_UP((elem_cnt), USABLE_ELEMS_PER_PAGE((elem_size), (mode))) +#define QED_CHAIN_PAGE_CNT(elem_cnt, elem_size, page_size, mode) \ + DIV_ROUND_UP((elem_cnt), \ + USABLE_ELEMS_PER_PAGE((elem_size), (page_size), (mode))) #define is_chain_u16(p) \ ((p)->cnt_type == QED_CHAIN_CNT_TYPE_U16) @@ -604,7 +609,7 @@ static inline void qed_chain_pbl_zero_mem(struct qed_chain *p_chain) for (i = 0; i < page_cnt; i++) memset(p_chain->pbl.pp_addr_tbl[i].virt_addr, 0, - QED_CHAIN_PAGE_SIZE); + p_chain->page_size); } #endif |