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authorAlexander Lobakin <alobakin@marvell.com>2020-07-23 01:10:39 +0300
committerDavid S. Miller <davem@davemloft.net>2020-07-22 18:19:03 -0700
commit155065866bc36f20061c55fd2ca287a466911b16 (patch)
tree96fc377365da74e239e44e26875680d5f6878b85 /include/linux/qed
parentb6db3f71c976ea92361dbc7ebfb65db666ac9f02 (diff)
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.h21
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