Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 309 insertions, 0 deletions

diff --git a/src/seastar/dpdk/drivers/net/enic/enic.h b/src/seastar/dpdk/drivers/net/enic/enic.h
new file mode 100644
index 00000000..d17a35f4
--- /dev/null
+++ b/src/seastar/dpdk/drivers/net/enic/enic.h
@@ -0,0 +1,309 @@
+/*
+ * Copyright 2008-2014 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
+ *
+ * Copyright (c) 2014, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef _ENIC_H_
+#define _ENIC_H_
+
+#include "vnic_enet.h"
+#include "vnic_dev.h"
+#include "vnic_wq.h"
+#include "vnic_rq.h"
+#include "vnic_cq.h"
+#include "vnic_intr.h"
+#include "vnic_stats.h"
+#include "vnic_nic.h"
+#include "vnic_rss.h"
+#include "enic_res.h"
+#include "cq_enet_desc.h"
+#include <sys/queue.h>
+#include <rte_spinlock.h>
+
+#define DRV_NAME		"enic_pmd"
+#define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Poll-mode Driver"
+#define DRV_COPYRIGHT		"Copyright 2008-2015 Cisco Systems, Inc"
+
+#define ENIC_WQ_MAX		8
+/* With Rx scatter support, we use two RQs on VIC per RQ used by app. Both
+ * RQs use the same CQ.
+ */
+#define ENIC_RQ_MAX		16
+#define ENIC_CQ_MAX		(ENIC_WQ_MAX + (ENIC_RQ_MAX / 2))
+#define ENIC_INTR_MAX		(ENIC_CQ_MAX + 2)
+#define ENIC_MAX_MAC_ADDR	64
+
+#define VLAN_ETH_HLEN           18
+
+#define ENICPMD_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
+
+#define ENICPMD_BDF_LENGTH      13   /* 0000:00:00.0'\0' */
+#define ENIC_CALC_IP_CKSUM      1
+#define ENIC_CALC_TCP_UDP_CKSUM 2
+#define ENIC_MAX_MTU            9000
+#define ENIC_PAGE_SIZE          4096
+#define PAGE_ROUND_UP(x) \
+	((((unsigned long)(x)) + ENIC_PAGE_SIZE-1) & (~(ENIC_PAGE_SIZE-1)))
+
+#define ENICPMD_VFIO_PATH          "/dev/vfio/vfio"
+/*#define ENIC_DESC_COUNT_MAKE_ODD (x) do{if ((~(x)) & 1) { (x)--; } }while(0)*/
+
+#define PCI_DEVICE_ID_CISCO_VIC_ENET         0x0043  /* ethernet vnic */
+#define PCI_DEVICE_ID_CISCO_VIC_ENET_VF      0x0071  /* enet SRIOV VF */
+
+
+#define ENICPMD_FDIR_MAX           64
+
+struct enic_fdir_node {
+	struct rte_eth_fdir_filter filter;
+	u16 fltr_id;
+	u16 rq_index;
+};
+
+struct enic_fdir {
+	struct rte_eth_fdir_stats stats;
+	struct rte_hash *hash;
+	struct enic_fdir_node *nodes[ENICPMD_FDIR_MAX];
+	u32 modes;
+	u32 types_mask;
+	void (*copy_fltr_fn)(struct filter_v2 *filt,
+			     struct rte_eth_fdir_input *input,
+			     struct rte_eth_fdir_masks *masks);
+};
+
+struct enic_soft_stats {
+	rte_atomic64_t rx_nombuf;
+	rte_atomic64_t rx_packet_errors;
+	rte_atomic64_t tx_oversized;
+};
+
+struct enic_memzone_entry {
+	const struct rte_memzone *rz;
+	LIST_ENTRY(enic_memzone_entry) entries;
+};
+
+/* Per-instance private data structure */
+struct enic {
+	struct enic *next;
+	struct rte_pci_device *pdev;
+	struct vnic_enet_config config;
+	struct vnic_dev_bar bar0;
+	struct vnic_dev *vdev;
+
+	unsigned int port_id;
+	struct rte_eth_dev *rte_dev;
+	struct enic_fdir fdir;
+	char bdf_name[ENICPMD_BDF_LENGTH];
+	int dev_fd;
+	int iommu_group_fd;
+	int iommu_groupid;
+	int eventfd;
+	uint8_t mac_addr[ETH_ALEN];
+	pthread_t err_intr_thread;
+	int promisc;
+	int allmulti;
+	u8 ig_vlan_strip_en;
+	int link_status;
+	u8 hw_ip_checksum;
+	u16 max_mtu;
+	u16 adv_filters;
+
+	unsigned int flags;
+	unsigned int priv_flags;
+
+	/* work queue */
+	struct vnic_wq wq[ENIC_WQ_MAX];
+	unsigned int wq_count;
+
+	/* receive queue */
+	struct vnic_rq rq[ENIC_RQ_MAX];
+	unsigned int rq_count;
+
+	/* completion queue */
+	struct vnic_cq cq[ENIC_CQ_MAX];
+	unsigned int cq_count;
+
+	/* interrupt resource */
+	struct vnic_intr intr;
+	unsigned int intr_count;
+
+	/* software counters */
+	struct enic_soft_stats soft_stats;
+
+	/* configured resources on vic */
+	unsigned int conf_rq_count;
+	unsigned int conf_wq_count;
+	unsigned int conf_cq_count;
+	unsigned int conf_intr_count;
+
+	/* linked list storing memory allocations */
+	LIST_HEAD(enic_memzone_list, enic_memzone_entry) memzone_list;
+	rte_spinlock_t memzone_list_lock;
+	rte_spinlock_t mtu_lock;
+
+};
+
+/* Get the CQ index from a Start of Packet(SOP) RQ index */
+static inline unsigned int enic_sop_rq_idx_to_cq_idx(unsigned int sop_idx)
+{
+	return sop_idx / 2;
+}
+
+/* Get the RTE RQ index from a Start of Packet(SOP) RQ index */
+static inline unsigned int enic_sop_rq_idx_to_rte_idx(unsigned int sop_idx)
+{
+	return sop_idx / 2;
+}
+
+/* Get the Start of Packet(SOP) RQ index from a RTE RQ index */
+static inline unsigned int enic_rte_rq_idx_to_sop_idx(unsigned int rte_idx)
+{
+	return rte_idx * 2;
+}
+
+/* Get the Data RQ index from a RTE RQ index */
+static inline unsigned int enic_rte_rq_idx_to_data_idx(unsigned int rte_idx)
+{
+	return rte_idx * 2 + 1;
+}
+
+static inline unsigned int enic_vnic_rq_count(struct enic *enic)
+{
+	return enic->rq_count * 2;
+}
+
+static inline unsigned int enic_cq_rq(__rte_unused struct enic *enic, unsigned int rq)
+{
+	/* Scatter rx uses two receive queues together with one
+	 * completion queue, so the completion queue number is no
+	 * longer the same as the rq number.
+	 */
+	return rq / 2;
+}
+
+static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
+{
+	return enic->rq_count + wq;
+}
+
+static inline unsigned int enic_msix_err_intr(__rte_unused struct enic *enic)
+{
+	return 0;
+}
+
+static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev)
+{
+	return (struct enic *)eth_dev->data->dev_private;
+}
+
+static inline uint32_t
+enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
+{
+	uint32_t d = i0 + i1;
+	d -= (d >= n_descriptors) ? n_descriptors : 0;
+	return d;
+}
+
+static inline uint32_t
+enic_ring_sub(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
+{
+	int32_t d = i1 - i0;
+	return (uint32_t)((d < 0) ? ((int32_t)n_descriptors + d) : d);
+}
+
+static inline uint32_t
+enic_ring_incr(uint32_t n_descriptors, uint32_t idx)
+{
+	idx++;
+	if (unlikely(idx == n_descriptors))
+		idx = 0;
+	return idx;
+}
+
+extern void enic_fdir_stats_get(struct enic *enic,
+	struct rte_eth_fdir_stats *stats);
+extern int enic_fdir_add_fltr(struct enic *enic,
+	struct rte_eth_fdir_filter *params);
+extern int enic_fdir_del_fltr(struct enic *enic,
+	struct rte_eth_fdir_filter *params);
+extern void enic_free_wq(void *txq);
+extern int enic_alloc_intr_resources(struct enic *enic);
+extern int enic_setup_finish(struct enic *enic);
+extern int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
+	unsigned int socket_id, uint16_t nb_desc);
+extern void enic_start_wq(struct enic *enic, uint16_t queue_idx);
+extern int enic_stop_wq(struct enic *enic, uint16_t queue_idx);
+extern void enic_start_rq(struct enic *enic, uint16_t queue_idx);
+extern int enic_stop_rq(struct enic *enic, uint16_t queue_idx);
+extern void enic_free_rq(void *rxq);
+extern int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
+	unsigned int socket_id, struct rte_mempool *mp,
+	uint16_t nb_desc, uint16_t free_thresh);
+extern int enic_set_rss_nic_cfg(struct enic *enic);
+extern int enic_set_vnic_res(struct enic *enic);
+extern void enic_set_hdr_split_size(struct enic *enic, u16 split_hdr_size);
+extern int enic_enable(struct enic *enic);
+extern int enic_disable(struct enic *enic);
+extern void enic_remove(struct enic *enic);
+extern int enic_get_link_status(struct enic *enic);
+extern void enic_dev_stats_get(struct enic *enic,
+	struct rte_eth_stats *r_stats);
+extern void enic_dev_stats_clear(struct enic *enic);
+extern void enic_add_packet_filter(struct enic *enic);
+int enic_set_mac_address(struct enic *enic, uint8_t *mac_addr);
+void enic_del_mac_address(struct enic *enic, int mac_index);
+extern unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq);
+extern void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
+			  struct rte_mbuf *tx_pkt, unsigned short len,
+			  uint8_t sop, uint8_t eop, uint8_t cq_entry,
+			  uint16_t ol_flags, uint16_t vlan_tag);
+
+extern void enic_post_wq_index(struct vnic_wq *wq);
+extern int enic_probe(struct enic *enic);
+extern int enic_clsf_init(struct enic *enic);
+extern void enic_clsf_destroy(struct enic *enic);
+uint16_t enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
+			uint16_t nb_pkts);
+uint16_t enic_dummy_recv_pkts(__rte_unused void *rx_queue,
+			      __rte_unused struct rte_mbuf **rx_pkts,
+			      __rte_unused uint16_t nb_pkts);
+uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+			       uint16_t nb_pkts);
+int enic_set_mtu(struct enic *enic, uint16_t new_mtu);
+int enic_link_update(struct enic *enic);
+void enic_fdir_info(struct enic *enic);
+void enic_fdir_info_get(struct enic *enic, struct rte_eth_fdir_info *stats);
+void copy_fltr_v1(struct filter_v2 *fltr, struct rte_eth_fdir_input *input,
+		  __rte_unused struct rte_eth_fdir_masks *masks);
+void copy_fltr_v2(struct filter_v2 *fltr, struct rte_eth_fdir_input *input,
+		  struct rte_eth_fdir_masks *masks);
+#endif /* _ENIC_H_ */