--- /dev/null
+/*
+ * Copyright (c) 2016 QLogic Corporation.
+ * All rights reserved.
+ * www.qlogic.com
+ *
+ * See LICENSE.qede_pmd for copyright and licensing details.
+ */
+
+#ifndef __ECORE_INT_API_H__
+#define __ECORE_INT_API_H__
+
+#ifndef __EXTRACT__LINUX__
+#define ECORE_SB_IDX 0x0002
+
+#define RX_PI 0
+#define TX_PI(tc) (RX_PI + 1 + tc)
+
+#ifndef ECORE_INT_MODE
+#define ECORE_INT_MODE
+enum ecore_int_mode {
+ ECORE_INT_MODE_INTA,
+ ECORE_INT_MODE_MSIX,
+ ECORE_INT_MODE_MSI,
+ ECORE_INT_MODE_POLL,
+};
+#endif
+
+struct ecore_sb_info {
+ struct status_block *sb_virt;
+ dma_addr_t sb_phys;
+ u32 sb_ack; /* Last given ack */
+ u16 igu_sb_id;
+ void OSAL_IOMEM *igu_addr;
+ u8 flags;
+#define ECORE_SB_INFO_INIT 0x1
+#define ECORE_SB_INFO_SETUP 0x2
+
+#ifdef ECORE_CONFIG_DIRECT_HWFN
+ struct ecore_hwfn *p_hwfn;
+#endif
+ struct ecore_dev *p_dev;
+};
+
+struct ecore_sb_cnt_info {
+ int sb_cnt;
+ int sb_iov_cnt;
+ int sb_free_blk;
+};
+
+static OSAL_INLINE u16 ecore_sb_update_sb_idx(struct ecore_sb_info *sb_info)
+{
+ u32 prod = 0;
+ u16 rc = 0;
+
+ /* barrier(); status block is written to by the chip */
+ /* FIXME: need some sort of barrier. */
+ prod = OSAL_LE32_TO_CPU(sb_info->sb_virt->prod_index) &
+ STATUS_BLOCK_PROD_INDEX_MASK;
+ if (sb_info->sb_ack != prod) {
+ sb_info->sb_ack = prod;
+ rc |= ECORE_SB_IDX;
+ }
+
+ OSAL_MMIOWB(sb_info->p_dev);
+ return rc;
+}
+
+/**
+ *
+ * @brief This function creates an update command for interrupts that is
+ * written to the IGU.
+ *
+ * @param sb_info - This is the structure allocated and
+ * initialized per status block. Assumption is
+ * that it was initialized using ecore_sb_init
+ * @param int_cmd - Enable/Disable/Nop
+ * @param upd_flg - whether igu consumer should be
+ * updated.
+ *
+ * @return OSAL_INLINE void
+ */
+static OSAL_INLINE void ecore_sb_ack(struct ecore_sb_info *sb_info,
+ enum igu_int_cmd int_cmd, u8 upd_flg)
+{
+ struct igu_prod_cons_update igu_ack = { 0 };
+
+ igu_ack.sb_id_and_flags =
+ ((sb_info->sb_ack << IGU_PROD_CONS_UPDATE_SB_INDEX_SHIFT) |
+ (upd_flg << IGU_PROD_CONS_UPDATE_UPDATE_FLAG_SHIFT) |
+ (int_cmd << IGU_PROD_CONS_UPDATE_ENABLE_INT_SHIFT) |
+ (IGU_SEG_ACCESS_REG << IGU_PROD_CONS_UPDATE_SEGMENT_ACCESS_SHIFT));
+
+#ifdef ECORE_CONFIG_DIRECT_HWFN
+ DIRECT_REG_WR(sb_info->p_hwfn, sb_info->igu_addr,
+ igu_ack.sb_id_and_flags);
+#else
+ DIRECT_REG_WR(OSAL_NULL, sb_info->igu_addr, igu_ack.sb_id_and_flags);
+#endif
+ /* Both segments (interrupts & acks) are written to same place address;
+ * Need to guarantee all commands will be received (in-order) by HW.
+ */
+ OSAL_MMIOWB(sb_info->p_dev);
+ OSAL_BARRIER(sb_info->p_dev);
+}
+
+#ifdef ECORE_CONFIG_DIRECT_HWFN
+static OSAL_INLINE void __internal_ram_wr(struct ecore_hwfn *p_hwfn,
+ void OSAL_IOMEM *addr,
+ int size, u32 *data)
+#else
+static OSAL_INLINE void __internal_ram_wr(void *p_hwfn,
+ void OSAL_IOMEM *addr,
+ int size, u32 *data)
+#endif
+{
+ unsigned int i;
+
+ for (i = 0; i < size / sizeof(*data); i++)
+ DIRECT_REG_WR(p_hwfn, &((u32 OSAL_IOMEM *)addr)[i], data[i]);
+}
+
+#ifdef ECORE_CONFIG_DIRECT_HWFN
+static OSAL_INLINE void internal_ram_wr(struct ecore_hwfn *p_hwfn,
+ void OSAL_IOMEM *addr,
+ int size, u32 *data)
+{
+ __internal_ram_wr(p_hwfn, addr, size, data);
+}
+#else
+static OSAL_INLINE void internal_ram_wr(void OSAL_IOMEM *addr,
+ int size, u32 *data)
+{
+ __internal_ram_wr(OSAL_NULL, addr, size, data);
+}
+#endif
+#endif
+
+struct ecore_hwfn;
+struct ecore_ptt;
+
+enum ecore_coalescing_fsm {
+ ECORE_COAL_RX_STATE_MACHINE,
+ ECORE_COAL_TX_STATE_MACHINE
+};
+
+/**
+ * @brief ecore_int_cau_conf_pi - configure cau for a given
+ * status block
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param igu_sb_id
+ * @param pi_index
+ * @param state
+ * @param timeset
+ */
+void ecore_int_cau_conf_pi(struct ecore_hwfn *p_hwfn,
+ struct ecore_ptt *p_ptt,
+ u16 igu_sb_id,
+ u32 pi_index,
+ enum ecore_coalescing_fsm coalescing_fsm,
+ u8 timeset);
+
+/**
+ *
+ * @brief ecore_int_igu_enable_int - enable device interrupts
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param int_mode - interrupt mode to use
+ */
+void ecore_int_igu_enable_int(struct ecore_hwfn *p_hwfn,
+ struct ecore_ptt *p_ptt,
+ enum ecore_int_mode int_mode);
+
+/**
+ *
+ * @brief ecore_int_igu_disable_int - disable device interrupts
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ */
+void ecore_int_igu_disable_int(struct ecore_hwfn *p_hwfn,
+ struct ecore_ptt *p_ptt);
+
+/**
+ *
+ * @brief ecore_int_igu_read_sisr_reg - Reads the single isr multiple dpc
+ * register from igu.
+ *
+ * @param p_hwfn
+ *
+ * @return u64
+ */
+u64 ecore_int_igu_read_sisr_reg(struct ecore_hwfn *p_hwfn);
+
+#define ECORE_SP_SB_ID 0xffff
+/**
+ * @brief ecore_int_sb_init - Initializes the sb_info structure.
+ *
+ * once the structure is initialized it can be passed to sb related functions.
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param sb_info points to an uninitialized (but
+ * allocated) sb_info structure
+ * @param sb_virt_addr
+ * @param sb_phy_addr
+ * @param sb_id the sb_id to be used (zero based in driver)
+ * should use ECORE_SP_SB_ID for SP Status block
+ *
+ * @return enum _ecore_status_t
+ */
+enum _ecore_status_t ecore_int_sb_init(struct ecore_hwfn *p_hwfn,
+ struct ecore_ptt *p_ptt,
+ struct ecore_sb_info *sb_info,
+ void *sb_virt_addr,
+ dma_addr_t sb_phy_addr, u16 sb_id);
+/**
+ * @brief ecore_int_sb_setup - Setup the sb.
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param sb_info initialized sb_info structure
+ */
+void ecore_int_sb_setup(struct ecore_hwfn *p_hwfn,
+ struct ecore_ptt *p_ptt, struct ecore_sb_info *sb_info);
+
+/**
+ * @brief ecore_int_sb_release - releases the sb_info structure.
+ *
+ * once the structure is released, it's memory can be freed
+ *
+ * @param p_hwfn
+ * @param sb_info points to an allocated sb_info structure
+ * @param sb_id the sb_id to be used (zero based in driver)
+ * should never be equal to ECORE_SP_SB_ID
+ * (SP Status block)
+ *
+ * @return enum _ecore_status_t
+ */
+enum _ecore_status_t ecore_int_sb_release(struct ecore_hwfn *p_hwfn,
+ struct ecore_sb_info *sb_info,
+ u16 sb_id);
+
+/**
+ * @brief ecore_int_sp_dpc - To be called when an interrupt is received on the
+ * default status block.
+ *
+ * @param p_hwfn - pointer to hwfn
+ *
+ */
+void ecore_int_sp_dpc(osal_int_ptr_t hwfn_cookie);
+
+/**
+ * @brief ecore_int_get_num_sbs - get the number of status
+ * blocks configured for this funciton in the igu.
+ *
+ * @param p_hwfn
+ * @param p_sb_cnt_info
+ *
+ * @return
+ */
+void ecore_int_get_num_sbs(struct ecore_hwfn *p_hwfn,
+ struct ecore_sb_cnt_info *p_sb_cnt_info);
+
+/**
+ * @brief ecore_int_disable_post_isr_release - performs the cleanup post ISR
+ * release. The API need to be called after releasing all slowpath IRQs
+ * of the device.
+ *
+ * @param p_dev
+ *
+ */
+void ecore_int_disable_post_isr_release(struct ecore_dev *p_dev);
+
+#endif
Code Review / deb_dpdk.git / blobdiff