diff options
Diffstat (limited to 'include/linux/qed')
| -rw-r--r-- | include/linux/qed/qed_chain.h | 31 | ||||
| -rw-r--r-- | include/linux/qed/qed_if.h | 41 |
2 files changed, 72 insertions, 0 deletions
diff --git a/include/linux/qed/qed_chain.h b/include/linux/qed/qed_chain.h index 59ddf9af909e..2dd0a9ed5b36 100644 --- a/include/linux/qed/qed_chain.h +++ b/include/linux/qed/qed_chain.h @@ -663,6 +663,37 @@ out: static inline void qed_chain_set_prod(struct qed_chain *p_chain, u32 prod_idx, void *p_prod_elem) { + if (p_chain->mode == QED_CHAIN_MODE_PBL) { + u32 cur_prod, page_mask, page_cnt, page_diff; + + cur_prod = is_chain_u16(p_chain) ? p_chain->u.chain16.prod_idx : + p_chain->u.chain32.prod_idx; + + /* Assume that number of elements in a page is power of 2 */ + page_mask = ~p_chain->elem_per_page_mask; + + /* Use "cur_prod - 1" and "prod_idx - 1" since producer index + * reaches the first element of next page before the page index + * is incremented. See qed_chain_produce(). + * Index wrap around is not a problem because the difference + * between current and given producer indices is always + * positive and lower than the chain's capacity. + */ + page_diff = (((cur_prod - 1) & page_mask) - + ((prod_idx - 1) & page_mask)) / + p_chain->elem_per_page; + + page_cnt = qed_chain_get_page_cnt(p_chain); + if (is_chain_u16(p_chain)) + p_chain->pbl.c.u16.prod_page_idx = + (p_chain->pbl.c.u16.prod_page_idx - + page_diff + page_cnt) % page_cnt; + else + p_chain->pbl.c.u32.prod_page_idx = + (p_chain->pbl.c.u32.prod_page_idx - + page_diff + page_cnt) % page_cnt; + } + if (is_chain_u16(p_chain)) p_chain->u.chain16.prod_idx = (u16) prod_idx; else diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h index a47321a0d572..91c536a01b56 100644 --- a/include/linux/qed/qed_if.h +++ b/include/linux/qed/qed_if.h @@ -47,6 +47,7 @@ #include <linux/slab.h> #include <linux/qed/common_hsi.h> #include <linux/qed/qed_chain.h> +#include <linux/io-64-nonatomic-lo-hi.h> enum dcbx_protocol_type { DCBX_PROTOCOL_ISCSI, @@ -448,11 +449,24 @@ struct qed_mfw_tlv_iscsi { bool tx_bytes_set; }; +enum qed_db_rec_width { + DB_REC_WIDTH_32B, + DB_REC_WIDTH_64B, +}; + +enum qed_db_rec_space { + DB_REC_KERNEL, + DB_REC_USER, +}; + #define DIRECT_REG_WR(reg_addr, val) writel((u32)val, \ (void __iomem *)(reg_addr)) #define DIRECT_REG_RD(reg_addr) readl((void __iomem *)(reg_addr)) +#define DIRECT_REG_WR64(reg_addr, val) writeq((u32)val, \ + (void __iomem *)(reg_addr)) + #define QED_COALESCE_MAX 0x1FF #define QED_DEFAULT_RX_USECS 12 #define QED_DEFAULT_TX_USECS 48 @@ -1015,6 +1029,33 @@ struct qed_common_ops { */ int (*set_led)(struct qed_dev *cdev, enum qed_led_mode mode); +/** + * @brief db_recovery_add - add doorbell information to the doorbell + * recovery mechanism. + * + * @param cdev + * @param db_addr - doorbell address + * @param db_data - address of where db_data is stored + * @param db_is_32b - doorbell is 32b pr 64b + * @param db_is_user - doorbell recovery addresses are user or kernel space + */ + int (*db_recovery_add)(struct qed_dev *cdev, + void __iomem *db_addr, + void *db_data, + enum qed_db_rec_width db_width, + enum qed_db_rec_space db_space); + +/** + * @brief db_recovery_del - remove doorbell information from the doorbell + * recovery mechanism. db_data serves as key (db_addr is not unique). + * + * @param cdev + * @param db_addr - doorbell address + * @param db_data - address where db_data is stored. Serves as key for the + * entry to delete. + */ + int (*db_recovery_del)(struct qed_dev *cdev, + void __iomem *db_addr, void *db_data); /** * @brief update_drv_state - API to inform the change in the driver state. |
