These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / net / ethernet / hisilicon / hns / hns_dsaf_rcb.h

diff --git a/kernel/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h b/kernel/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
new file mode 100644 (file)
index 0000000..3a2afe2
--- /dev/null
+++ b/kernel/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2014-2015 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef _HNS_DSAF_RCB_H
+#define _HNS_DSAF_RCB_H
+
+#include <linux/netdevice.h>
+#include <linux/platform_device.h>
+
+#include "hnae.h"
+#include "hns_dsaf_main.h"
+
+struct rcb_common_cb;
+
+#define HNS_RCB_IRQ_NUM_PER_QUEUE              2
+#define HNS_RCB_IRQ_IDX_TX                     0
+#define HNS_RCB_IRQ_IDX_RX                     1
+#define HNS_RCB_TX_REG_OFFSET                  0x40
+
+#define HNS_RCB_SERVICE_NW_ENGINE_NUM          DSAF_COMM_CHN
+#define HNS_RCB_DEBUG_NW_ENGINE_NUM            1
+#define HNS_RCB_RING_MAX_BD_PER_PKT            3
+#define HNS_RCB_MAX_PKT_SIZE MAC_MAX_MTU
+
+#define HNS_RCB_RING_MAX_PENDING_BD            1024
+#define HNS_RCB_RING_MIN_PENDING_BD            16
+
+#define HNS_RCB_REG_OFFSET                     0x10000
+
+#define HNS_RCB_MAX_COALESCED_FRAMES           1023
+#define HNS_RCB_MIN_COALESCED_FRAMES           1
+#define HNS_RCB_DEF_COALESCED_FRAMES           50
+#define HNS_RCB_MAX_TIME_OUT                   0x500
+
+#define HNS_RCB_COMMON_ENDIAN                  1
+
+#define HNS_BD_SIZE_512_TYPE                   0
+#define HNS_BD_SIZE_1024_TYPE                  1
+#define HNS_BD_SIZE_2048_TYPE                  2
+#define HNS_BD_SIZE_4096_TYPE                  3
+
+#define HNS_RCB_COMMON_DUMP_REG_NUM 80
+#define HNS_RCB_RING_DUMP_REG_NUM 40
+#define HNS_RING_STATIC_REG_NUM 28
+
+#define HNS_DUMP_REG_NUM                       500
+#define HNS_STATIC_REG_NUM                     12
+
+enum rcb_int_flag {
+       RCB_INT_FLAG_TX = 0x1,
+       RCB_INT_FLAG_RX = (0x1 << 1),
+       RCB_INT_FLAG_MAX = (0x1 << 2),  /*must be the last element */
+};
+
+struct hns_ring_hw_stats {
+       u64 tx_pkts;
+       u64 ppe_tx_ok_pkts;
+       u64 ppe_tx_drop_pkts;
+       u64 rx_pkts;
+       u64 ppe_rx_ok_pkts;
+       u64 ppe_rx_drop_pkts;
+};
+
+struct ring_pair_cb {
+       struct rcb_common_cb *rcb_common;       /*  ring belongs to */
+       struct device *dev;     /*device for DMA mapping */
+       struct hnae_queue q;
+
+       u16 index;      /* global index in a rcb common device */
+       u16 buf_size;
+
+       int virq[HNS_RCB_IRQ_NUM_PER_QUEUE];
+
+       u8 port_id_in_dsa;
+       u8 used_by_vf;
+
+       struct hns_ring_hw_stats hw_stats;
+};
+
+struct rcb_common_cb {
+       u8 __iomem *io_base;
+       phys_addr_t phy_base;
+       struct dsaf_device *dsaf_dev;
+       u16 max_vfn;
+       u16 max_q_per_vf;
+
+       u8 comm_index;
+       u32 ring_num;
+       u32 coalesced_frames; /* frames  threshold of  rx interrupt   */
+       u32 timeout; /* time threshold of  rx interrupt  */
+       u32 desc_num; /*  desc num per queue*/
+
+       struct ring_pair_cb ring_pair_cb[0];
+};
+
+int hns_rcb_buf_size2type(u32 buf_size);
+
+int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index);
+void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index);
+int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common);
+void hns_rcb_start(struct hnae_queue *q, u32 val);
+void hns_rcb_get_cfg(struct rcb_common_cb *rcb_common);
+void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common);
+void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, int comm_index,
+                           u16 *max_vfn, u16 *max_q_per_vf);
+
+void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val);
+void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag);
+void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 enable);
+void hns_rcb_init_hw(struct ring_pair_cb *ring);
+void hns_rcb_reset_ring_hw(struct hnae_queue *q);
+void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag);
+
+u32 hns_rcb_get_coalesced_frames(struct dsaf_device *dsaf_dev, int comm_index);
+u32 hns_rcb_get_coalesce_usecs(struct dsaf_device *dsaf_dev, int comm_index);
+void hns_rcb_set_coalesce_usecs(struct dsaf_device *dsaf_dev,
+                               int comm_index, u32 timeout);
+int hns_rcb_set_coalesced_frames(struct dsaf_device *dsaf_dev,
+                                int comm_index, u32 coalesce_frames);
+void hns_rcb_update_stats(struct hnae_queue *queue);
+
+void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data);
+
+void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_common, void *data);
+
+int hns_rcb_get_ring_sset_count(int stringset);
+int hns_rcb_get_common_regs_count(void);
+int hns_rcb_get_ring_regs_count(void);
+
+void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data);
+
+void hns_rcb_get_strings(int stringset, u8 *data, int index);
+#endif /* _HNS_DSAF_RCB_H */