New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 229 insertions, 0 deletions

diff --git a/drivers/net/netvsc/hn_nvs.h b/drivers/net/netvsc/hn_nvs.h
new file mode 100644
index 00000000..984a9c11
--- /dev/null
+++ b/drivers/net/netvsc/hn_nvs.h
@@ -0,0 +1,229 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2018 Microsoft Corp.
+ * All rights reserved.
+ */
+
+/*
+ * The indirection table message is the largest message
+ * received from host, and that is 112 bytes.
+ */
+#define NVS_RESPSIZE_MAX	256
+
+/*
+ * NDIS protocol version numbers
+ */
+#define NDIS_VERSION_6_1		0x00060001
+#define NDIS_VERSION_6_20		0x00060014
+#define NDIS_VERSION_6_30		0x0006001e
+#define NDIS_VERSION_MAJOR(ver)	(((ver) & 0xffff0000) >> 16)
+#define NDIS_VERSION_MINOR(ver)	((ver) & 0xffff)
+
+/*
+ * NVS versions.
+ */
+#define NVS_VERSION_1		0x00002
+#define NVS_VERSION_2		0x30002
+#define NVS_VERSION_4		0x40000
+#define NVS_VERSION_5		0x50000
+#define NVS_VERSION_6		0x60000
+#define NVS_VERSION_61		0x60001
+
+#define NVS_RXBUF_SIG		0xcafe
+#define NVS_CHIM_SIG			0xface
+
+#define NVS_CHIM_IDX_INVALID		0xffffffff
+
+#define NVS_RNDIS_MTYPE_DATA		0
+#define NVS_RNDIS_MTYPE_CTRL		1
+
+/*
+ * NVS message transacion status codes.
+ */
+#define NVS_STATUS_OK		1
+#define NVS_STATUS_FAILED		2
+
+/*
+ * NVS request/response message types.
+ */
+#define NVS_TYPE_INIT		1
+#define NVS_TYPE_INIT_RESP	2
+
+#define NVS_TYPE_NDIS_INIT	100
+#define NVS_TYPE_RXBUF_CONN	101
+#define NVS_TYPE_RXBUF_CONNRESP	102
+#define NVS_TYPE_RXBUF_DISCONN	103
+#define NVS_TYPE_CHIM_CONN	104
+#define NVS_TYPE_CHIM_CONNRESP	105
+#define NVS_TYPE_CHIM_DISCONN	106
+#define NVS_TYPE_RNDIS		107
+#define NVS_TYPE_RNDIS_ACK	108
+
+#define NVS_TYPE_NDIS_CONF	125
+#define NVS_TYPE_VFASSOC_NOTE	128	/* notification */
+#define NVS_TYPE_SET_DATAPATH	129
+#define NVS_TYPE_SUBCH_REQ	133
+#define NVS_TYPE_SUBCH_RESP	133	/* same as SUBCH_REQ */
+#define NVS_TYPE_TXTBL_NOTE	134	/* notification */
+
+
+/* NVS message common header */
+struct hn_nvs_hdr {
+	uint32_t	type;
+} __rte_packed;
+
+struct hn_nvs_init {
+	uint32_t	type;	/* NVS_TYPE_INIT */
+	uint32_t	ver_min;
+	uint32_t	ver_max;
+	uint8_t		rsvd[28];
+} __rte_packed;
+
+struct hn_nvs_init_resp {
+	uint32_t	type;	/* NVS_TYPE_INIT_RESP */
+	uint32_t	ver;	/* deprecated */
+	uint32_t	rsvd;
+	uint32_t	status;	/* NVS_STATUS_ */
+} __rte_packed;
+
+/* No response */
+struct hn_nvs_ndis_conf {
+	uint32_t	type;	/* NVS_TYPE_NDIS_CONF */
+	uint32_t	mtu;
+	uint32_t	rsvd;
+	uint64_t	caps;	/* NVS_NDIS_CONF_ */
+	uint8_t		rsvd1[20];
+} __rte_packed;
+
+#define NVS_NDIS_CONF_SRIOV		0x0004
+#define NVS_NDIS_CONF_VLAN		0x0008
+
+/* No response */
+struct hn_nvs_ndis_init {
+	uint32_t	type;	/* NVS_TYPE_NDIS_INIT */
+	uint32_t	ndis_major;	/* NDIS_VERSION_MAJOR_ */
+	uint32_t	ndis_minor;	/* NDIS_VERSION_MINOR_ */
+	uint8_t		rsvd[28];
+} __rte_packed;
+
+#define NVS_DATAPATH_SYNTHETIC	0
+#define NVS_DATAPATH_VF		1
+
+/* No response */
+struct hn_nvs_datapath {
+	uint32_t	type;	/* NVS_TYPE_SET_DATAPATH */
+	uint32_t	active_path;/* NVS_DATAPATH_* */
+	uint8_t		rsvd[32];
+} __rte_packed;
+
+struct hn_nvs_rxbuf_conn {
+	uint32_t	type;	/* NVS_TYPE_RXBUF_CONN */
+	uint32_t	gpadl;	/* RXBUF vmbus GPADL */
+	uint16_t	sig;	/* NVS_RXBUF_SIG */
+	uint8_t		rsvd[30];
+} __rte_packed;
+
+struct hn_nvs_rxbuf_sect {
+	uint32_t	start;
+	uint32_t	slotsz;
+	uint32_t	slotcnt;
+	uint32_t	end;
+} __rte_packed;
+
+struct hn_nvs_rxbuf_connresp {
+	uint32_t	type;	/* NVS_TYPE_RXBUF_CONNRESP */
+	uint32_t	status;	/* NVS_STATUS_ */
+	uint32_t	nsect;	/* # of elem in nvs_sect */
+	struct hn_nvs_rxbuf_sect nvs_sect[1];
+} __rte_packed;
+
+/* No response */
+struct hn_nvs_rxbuf_disconn {
+	uint32_t	type;	/* NVS_TYPE_RXBUF_DISCONN */
+	uint16_t	sig;	/* NVS_RXBUF_SIG */
+	uint8_t		rsvd[34];
+} __rte_packed;
+
+struct hn_nvs_chim_conn {
+	uint32_t	type;	/* NVS_TYPE_CHIM_CONN */
+	uint32_t	gpadl;	/* chimney buf vmbus GPADL */
+	uint16_t	sig;	/* NDIS_NVS_CHIM_SIG */
+	uint8_t		rsvd[30];
+} __rte_packed;
+
+struct hn_nvs_chim_connresp {
+	uint32_t	type;	/* NVS_TYPE_CHIM_CONNRESP */
+	uint32_t	status;	/* NVS_STATUS_ */
+	uint32_t	sectsz;	/* section size */
+} __rte_packed;
+
+/* No response */
+struct hn_nvs_chim_disconn {
+	uint32_t	type;	/* NVS_TYPE_CHIM_DISCONN */
+	uint16_t	sig;	/* NVS_CHIM_SIG */
+	uint8_t		rsvd[34];
+} __rte_packed;
+
+#define NVS_SUBCH_OP_ALLOC		1
+
+struct hn_nvs_subch_req {
+	uint32_t	type;	/* NVS_TYPE_SUBCH_REQ */
+	uint32_t	op;	/* NVS_SUBCH_OP_ */
+	uint32_t	nsubch;
+	uint8_t		rsvd[28];
+} __rte_packed;
+
+struct hn_nvs_subch_resp {
+	uint32_t	type;	/* NVS_TYPE_SUBCH_RESP */
+	uint32_t	status;	/* NVS_STATUS_ */
+	uint32_t	nsubch;
+	uint8_t		rsvd[28];
+} __rte_packed;
+
+struct hn_nvs_rndis {
+	uint32_t	type;	/* NVS_TYPE_RNDIS */
+	uint32_t	rndis_mtype;/* NVS_RNDIS_MTYPE_ */
+	/*
+	 * Chimney sending buffer index and size.
+	 *
+	 * NOTE:
+	 * If nvs_chim_idx is set to NVS_CHIM_IDX_INVALID
+	 * and nvs_chim_sz is set to 0, then chimney sending
+	 * buffer is _not_ used by this RNDIS message.
+	 */
+	uint32_t	chim_idx;
+	uint32_t	chim_sz;
+	uint8_t		rsvd[24];
+} __rte_packed;
+
+struct hn_nvs_rndis_ack {
+	uint32_t	type;	/* NVS_TYPE_RNDIS_ACK */
+	uint32_t	status;	/* NVS_STATUS_ */
+	uint8_t		rsvd[32];
+} __rte_packed;
+
+
+int	hn_nvs_attach(struct hn_data *hv, unsigned int mtu);
+void	hn_nvs_detach(struct hn_data *hv);
+void	hn_nvs_ack_rxbuf(struct vmbus_channel *chan, uint64_t tid);
+int	hn_nvs_alloc_subchans(struct hn_data *hv, uint32_t *nsubch);
+void	hn_nvs_set_datapath(struct hn_data *hv, uint32_t path);
+
+static inline int
+hn_nvs_send(struct vmbus_channel *chan, uint16_t flags,
+	    void *nvs_msg, int nvs_msglen, uintptr_t sndc,
+	    bool *need_sig)
+{
+	return rte_vmbus_chan_send(chan, VMBUS_CHANPKT_TYPE_INBAND,
+				   nvs_msg, nvs_msglen, (uint64_t)sndc,
+				   flags, need_sig);
+}
+
+static inline int
+hn_nvs_send_sglist(struct vmbus_channel *chan,
+		   struct vmbus_gpa sg[], unsigned int sglen,
+		   void *nvs_msg, int nvs_msglen,
+		   uintptr_t sndc, bool *need_sig)
+{
+	return rte_vmbus_chan_send_sglist(chan, sg, sglen, nvs_msg, nvs_msglen,
+					  (uint64_t)sndc, need_sig);
+}