Differential D7450 Diff 19151 sys/dev/hyperv/netvsc/hv_rndis_filter.c

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sys/dev/hyperv/netvsc/hv_rndis_filter.c

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static int hv_rf_query_device(rndis_device *device, uint32_t oid,		static int hv_rf_query_device(rndis_device *device, uint32_t oid,
void result, uint32_t result_size);		void result, uint32_t result_size);
static inline int hv_rf_query_device_mac(rndis_device *device);		static inline int hv_rf_query_device_mac(rndis_device *device);
static inline int hv_rf_query_device_link_status(rndis_device *device);		static inline int hv_rf_query_device_link_status(rndis_device *device);
static int hv_rf_set_packet_filter(rndis_device *device, uint32_t new_filter);		static int hv_rf_set_packet_filter(rndis_device *device, uint32_t new_filter);
static int hv_rf_init_device(rndis_device *device);		static int hv_rf_init_device(rndis_device *device);
static int hv_rf_open_device(rndis_device *device);		static int hv_rf_open_device(rndis_device *device);
static int hv_rf_close_device(rndis_device *device);		static int hv_rf_close_device(rndis_device *device);
static void hv_rf_on_send_request_completion(struct vmbus_channel , void context);
static void hv_rf_on_send_request_halt_completion(struct vmbus_channel , void context);
int		int
hv_rf_send_offload_request(struct hn_softc *sc,		hv_rf_send_offload_request(struct hn_softc *sc,
rndis_offload_params *offloads);		rndis_offload_params *offloads);

		static void hn_rndis_sent_halt(struct hn_send_ctx *sndc,
		struct netvsc_dev_ net_dev, struct vmbus_channel chan,
		const struct nvsp_msg_ *msg);
		static void hn_rndis_sent_cb(struct hn_send_ctx *sndc,
		struct netvsc_dev_ net_dev, struct vmbus_channel chan,
		const struct nvsp_msg_ *msg);

/*		/*
* Set the Per-Packet-Info with the specified type		* Set the Per-Packet-Info with the specified type
*/		*/
void *		void *
hv_set_rppi_data(rndis_msg *rndis_mesg, uint32_t rppi_size,		hv_set_rppi_data(rndis_msg *rndis_mesg, uint32_t rppi_size,
int pkt_type)		int pkt_type)
{		{
rndis_packet *rndis_pkt;		rndis_packet *rndis_pkt;
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/*		/*
*		*
*/		*/
static int		static int
hv_rf_send_request(rndis_device device, rndis_request request,		hv_rf_send_request(rndis_device device, rndis_request request,
uint32_t message_type)		uint32_t message_type)
{		{
netvsc_packet *packet;
netvsc_dev *net_dev = device->net_dev;		netvsc_dev *net_dev = device->net_dev;
int send_buf_section_idx;		uint32_t send_buf_section_idx, tot_data_buf_len;
struct vmbus_gpa gpa[2];		struct vmbus_gpa gpa[2];
int gpa_cnt;		int gpa_cnt, send_buf_section_size;
		hn_sent_callback_t cb;

/* Set up the packet to send it */		/* Set up the packet to send it */
packet = &request->pkt;		tot_data_buf_len = request->request_msg.msg_len;

packet->is_data_pkt = FALSE;
packet->tot_data_buf_len = request->request_msg.msg_len;

gpa_cnt = 1;		gpa_cnt = 1;
gpa[0].gpa_page = hv_get_phys_addr(&request->request_msg) >> PAGE_SHIFT;		gpa[0].gpa_page = hv_get_phys_addr(&request->request_msg) >> PAGE_SHIFT;
gpa[0].gpa_len = request->request_msg.msg_len;		gpa[0].gpa_len = request->request_msg.msg_len;
gpa[0].gpa_ofs = (unsigned long)&request->request_msg & (PAGE_SIZE - 1);		gpa[0].gpa_ofs = (unsigned long)&request->request_msg & (PAGE_SIZE - 1);

if (gpa[0].gpa_ofs + gpa[0].gpa_len > PAGE_SIZE) {		if (gpa[0].gpa_ofs + gpa[0].gpa_len > PAGE_SIZE) {
gpa_cnt = 2;		gpa_cnt = 2;
gpa[0].gpa_len = PAGE_SIZE - gpa[0].gpa_ofs;		gpa[0].gpa_len = PAGE_SIZE - gpa[0].gpa_ofs;
gpa[1].gpa_page =		gpa[1].gpa_page =
hv_get_phys_addr((char*)&request->request_msg +		hv_get_phys_addr((char*)&request->request_msg +
gpa[0].gpa_len) >> PAGE_SHIFT;		gpa[0].gpa_len) >> PAGE_SHIFT;
gpa[1].gpa_ofs = 0;		gpa[1].gpa_ofs = 0;
gpa[1].gpa_len = request->request_msg.msg_len - gpa[0].gpa_len;		gpa[1].gpa_len = request->request_msg.msg_len - gpa[0].gpa_len;
}		}

packet->compl.send.send_completion_context = request; /* packet */		if (message_type != REMOTE_NDIS_HALT_MSG)
if (message_type != REMOTE_NDIS_HALT_MSG) {		cb = hn_rndis_sent_cb;
packet->compl.send.on_send_completion =		else
hv_rf_on_send_request_completion;		cb = hn_rndis_sent_halt;
} else {
packet->compl.send.on_send_completion =		if (tot_data_buf_len < net_dev->send_section_size) {
hv_rf_on_send_request_halt_completion;
}
packet->compl.send.send_completion_tid = (unsigned long)device;
if (packet->tot_data_buf_len < net_dev->send_section_size) {
send_buf_section_idx = hv_nv_get_next_send_section(net_dev);		send_buf_section_idx = hv_nv_get_next_send_section(net_dev);
if (send_buf_section_idx !=		if (send_buf_section_idx !=
NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX) {		NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX) {
char dest = ((char )net_dev->send_buf +		char dest = ((char )net_dev->send_buf +
send_buf_section_idx * net_dev->send_section_size);		send_buf_section_idx * net_dev->send_section_size);

memcpy(dest, &request->request_msg, request->request_msg.msg_len);		memcpy(dest, &request->request_msg, request->request_msg.msg_len);
packet->send_buf_section_idx = send_buf_section_idx;		send_buf_section_size = tot_data_buf_len;
packet->send_buf_section_size = packet->tot_data_buf_len;
gpa_cnt = 0;		gpa_cnt = 0;
goto sendit;		goto sendit;
}		}
/* Failed to allocate chimney send buffer; move on */		/* Failed to allocate chimney send buffer; move on */
}		}
packet->send_buf_section_idx = NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX;		send_buf_section_idx = NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX;
packet->send_buf_section_size = 0;		send_buf_section_size = 0;

sendit:		sendit:
return hv_nv_on_send(device->net_dev->sc->hn_prichan, packet,		hn_send_ctx_init(&request->send_ctx, cb, request,
gpa, gpa_cnt);		send_buf_section_idx, send_buf_section_size);
		return hv_nv_on_send(device->net_dev->sc->hn_prichan, false,
		&request->send_ctx, gpa, gpa_cnt);
}		}

/*		/*
* RNDIS filter receive response		* RNDIS filter receive response
*/		*/
static void		static void
hv_rf_receive_response(rndis_device device, rndis_msg response)		hv_rf_receive_response(rndis_device device, rndis_msg response)
{		{
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/*		/*
* RNDIS filter on device add		* RNDIS filter on device add
*/		*/
int		int
hv_rf_on_device_add(struct hn_softc sc, void additl_info,		hv_rf_on_device_add(struct hn_softc sc, void additl_info,
int nchan, struct hn_rx_ring *rxr)		int nchan, struct hn_rx_ring *rxr)
{		{
		struct hn_send_ctx sndc;
int ret;		int ret;
netvsc_dev *net_dev;		netvsc_dev *net_dev;
rndis_device *rndis_dev;		rndis_device *rndis_dev;
nvsp_msg *init_pkt;		nvsp_msg *init_pkt;
rndis_offload_params offloads;		rndis_offload_params offloads;
struct rndis_recv_scale_cap rsscaps;		struct rndis_recv_scale_cap rsscaps;
uint32_t rsscaps_size = sizeof(struct rndis_recv_scale_cap);		uint32_t rsscaps_size = sizeof(struct rndis_recv_scale_cap);
netvsc_device_info dev_info = (netvsc_device_info )additl_info;		netvsc_device_info dev_info = (netvsc_device_info )additl_info;
▲ Show 20 Lines • Show All 90 Lines • ▼ Show 20 Lines	hv_rf_on_device_add(struct hn_softc sc, void additl_info,
memset(init_pkt, 0, sizeof(nvsp_msg));		memset(init_pkt, 0, sizeof(nvsp_msg));

init_pkt->hdr.msg_type = nvsp_msg5_type_subchannel;		init_pkt->hdr.msg_type = nvsp_msg5_type_subchannel;
init_pkt->msgs.vers_5_msgs.subchannel_request.op =		init_pkt->msgs.vers_5_msgs.subchannel_request.op =
NVSP_SUBCHANNE_ALLOCATE;		NVSP_SUBCHANNE_ALLOCATE;
init_pkt->msgs.vers_5_msgs.subchannel_request.num_subchannels =		init_pkt->msgs.vers_5_msgs.subchannel_request.num_subchannels =
net_dev->num_channel - 1;		net_dev->num_channel - 1;

		hn_send_ctx_init_simple(&sndc, hn_nvs_sent_wakeup, NULL);
ret = vmbus_chan_send(sc->hn_prichan,		ret = vmbus_chan_send(sc->hn_prichan,
VMBUS_CHANPKT_TYPE_INBAND, VMBUS_CHANPKT_FLAG_RC,		VMBUS_CHANPKT_TYPE_INBAND, VMBUS_CHANPKT_FLAG_RC,
init_pkt, sizeof(nvsp_msg), (uint64_t)(uintptr_t)init_pkt);		init_pkt, sizeof(nvsp_msg), (uint64_t)(uintptr_t)&sndc);
if (ret != 0) {		if (ret != 0) {
device_printf(dev, "Fail to allocate subchannel\n");		device_printf(dev, "Fail to allocate subchannel\n");
goto out;		goto out;
}		}

sema_wait(&net_dev->channel_init_sema);		sema_wait(&net_dev->channel_init_sema);

if (init_pkt->msgs.vers_5_msgs.subchn_complete.status !=		if (init_pkt->msgs.vers_5_msgs.subchn_complete.status !=
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int		int
hv_rf_on_close(struct hn_softc *sc)		hv_rf_on_close(struct hn_softc *sc)
{		{
netvsc_dev *net_dev = sc->net_dev;		netvsc_dev *net_dev = sc->net_dev;

return (hv_rf_close_device((rndis_device *)net_dev->extension));		return (hv_rf_close_device((rndis_device *)net_dev->extension));
}		}

/*
* RNDIS filter on send request completion callback
*/
static void		static void
hv_rf_on_send_request_completion(struct vmbus_channel *chan __unused,		hn_rndis_sent_cb(struct hn_send_ctx sndc, struct netvsc_dev_ net_dev,
void *context __unused)		struct vmbus_channel chan __unused, const struct nvsp_msg_ msg __unused)
{		{
		if (sndc->hn_chim_idx != NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX)
		hn_chim_free(net_dev, sndc->hn_chim_idx);
}		}

/*
* RNDIS filter on send request (halt only) completion callback
*/
static void		static void
hv_rf_on_send_request_halt_completion(struct vmbus_channel *chan __unused,		hn_rndis_sent_halt(struct hn_send_ctx sndc, struct netvsc_dev_ net_dev,
void *context)		struct vmbus_channel chan __unused, const struct nvsp_msg_ msg __unused)
{		{
rndis_request *request = context;		rndis_request *request = sndc->hn_cbarg;

		if (sndc->hn_chim_idx != NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX)
		hn_chim_free(net_dev, sndc->hn_chim_idx);

/*		/*
* Notify hv_rf_halt_device() about halt completion.		* Notify hv_rf_halt_device() about halt completion.
* The halt code must wait for completion before freeing		* The halt code must wait for completion before freeing
* the transaction resources.		* the transaction resources.
*/		*/
request->halt_complete_flag = 1;		request->halt_complete_flag = 1;
}		}

void		void
hv_rf_channel_rollup(struct hn_rx_ring rxr, struct hn_tx_ring txr)		hv_rf_channel_rollup(struct hn_rx_ring rxr, struct hn_tx_ring txr)
{		{

netvsc_channel_rollup(rxr, txr);		netvsc_channel_rollup(rxr, txr);
}		}