diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-07 00:45:08 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-07 00:45:08 +0300 |
commit | aae3dbb4776e7916b6cd442d00159bea27a695c1 (patch) | |
tree | d074c5d783a81e7e2e084b1eba77f57459da7e37 /drivers/hv/channel.c | |
parent | ec3604c7a5aae8953545b0d05495357009a960e5 (diff) | |
parent | 66bed8465a808400eb14562510e26c8818082cb8 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) Support ipv6 checksum offload in sunvnet driver, from Shannon
Nelson.
2) Move to RB-tree instead of custom AVL code in inetpeer, from Eric
Dumazet.
3) Allow generic XDP to work on virtual devices, from John Fastabend.
4) Add bpf device maps and XDP_REDIRECT, which can be used to build
arbitrary switching frameworks using XDP. From John Fastabend.
5) Remove UFO offloads from the tree, gave us little other than bugs.
6) Remove the IPSEC flow cache, from Florian Westphal.
7) Support ipv6 route offload in mlxsw driver.
8) Support VF representors in bnxt_en, from Sathya Perla.
9) Add support for forward error correction modes to ethtool, from
Vidya Sagar Ravipati.
10) Add time filter for packet scheduler action dumping, from Jamal Hadi
Salim.
11) Extend the zerocopy sendmsg() used by virtio and tap to regular
sockets via MSG_ZEROCOPY. From Willem de Bruijn.
12) Significantly rework value tracking in the BPF verifier, from Edward
Cree.
13) Add new jump instructions to eBPF, from Daniel Borkmann.
14) Rework rtnetlink plumbing so that operations can be run without
taking the RTNL semaphore. From Florian Westphal.
15) Support XDP in tap driver, from Jason Wang.
16) Add 32-bit eBPF JIT for ARM, from Shubham Bansal.
17) Add Huawei hinic ethernet driver.
18) Allow to report MD5 keys in TCP inet_diag dumps, from Ivan
Delalande.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1780 commits)
i40e: point wb_desc at the nvm_wb_desc during i40e_read_nvm_aq
i40e: avoid NVM acquire deadlock during NVM update
drivers: net: xgene: Remove return statement from void function
drivers: net: xgene: Configure tx/rx delay for ACPI
drivers: net: xgene: Read tx/rx delay for ACPI
rocker: fix kcalloc parameter order
rds: Fix non-atomic operation on shared flag variable
net: sched: don't use GFP_KERNEL under spin lock
vhost_net: correctly check tx avail during rx busy polling
net: mdio-mux: add mdio_mux parameter to mdio_mux_init()
rxrpc: Make service connection lookup always check for retry
net: stmmac: Delete dead code for MDIO registration
gianfar: Fix Tx flow control deactivation
cxgb4: Ignore MPS_TX_INT_CAUSE[Bubble] for T6
cxgb4: Fix pause frame count in t4_get_port_stats
cxgb4: fix memory leak
tun: rename generic_xdp to skb_xdp
tun: reserve extra headroom only when XDP is set
net: dsa: bcm_sf2: Configure IMP port TC2QOS mapping
net: dsa: bcm_sf2: Advertise number of egress queues
...
Diffstat (limited to 'drivers/hv/channel.c')
-rw-r--r-- | drivers/hv/channel.c | 129 |
1 files changed, 23 insertions, 106 deletions
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 63ac1c6a825f..efd5db743319 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -661,9 +661,23 @@ void vmbus_close(struct vmbus_channel *channel) } EXPORT_SYMBOL_GPL(vmbus_close); -int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer, - u32 bufferlen, u64 requestid, - enum vmbus_packet_type type, u32 flags) +/** + * vmbus_sendpacket() - Send the specified buffer on the given channel + * @channel: Pointer to vmbus_channel structure. + * @buffer: Pointer to the buffer you want to receive the data into. + * @bufferlen: Maximum size of what the the buffer will hold + * @requestid: Identifier of the request + * @type: Type of packet that is being send e.g. negotiate, time + * packet etc. + * + * Sends data in @buffer directly to hyper-v via the vmbus + * This will send the data unparsed to hyper-v. + * + * Mainly used by Hyper-V drivers. + */ +int vmbus_sendpacket(struct vmbus_channel *channel, void *buffer, + u32 bufferlen, u64 requestid, + enum vmbus_packet_type type, u32 flags) { struct vmpacket_descriptor desc; u32 packetlen = sizeof(struct vmpacket_descriptor) + bufferlen; @@ -690,42 +704,19 @@ int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer, return hv_ringbuffer_write(channel, bufferlist, num_vecs); } -EXPORT_SYMBOL(vmbus_sendpacket_ctl); - -/** - * vmbus_sendpacket() - Send the specified buffer on the given channel - * @channel: Pointer to vmbus_channel structure. - * @buffer: Pointer to the buffer you want to receive the data into. - * @bufferlen: Maximum size of what the the buffer will hold - * @requestid: Identifier of the request - * @type: Type of packet that is being send e.g. negotiate, time - * packet etc. - * - * Sends data in @buffer directly to hyper-v via the vmbus - * This will send the data unparsed to hyper-v. - * - * Mainly used by Hyper-V drivers. - */ -int vmbus_sendpacket(struct vmbus_channel *channel, void *buffer, - u32 bufferlen, u64 requestid, - enum vmbus_packet_type type, u32 flags) -{ - return vmbus_sendpacket_ctl(channel, buffer, bufferlen, requestid, - type, flags); -} EXPORT_SYMBOL(vmbus_sendpacket); /* - * vmbus_sendpacket_pagebuffer_ctl - Send a range of single-page buffer + * vmbus_sendpacket_pagebuffer - Send a range of single-page buffer * packets using a GPADL Direct packet type. This interface allows you * to control notifying the host. This will be useful for sending * batched data. Also the sender can control the send flags * explicitly. */ -int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel, - struct hv_page_buffer pagebuffers[], - u32 pagecount, void *buffer, u32 bufferlen, - u64 requestid, u32 flags) +int vmbus_sendpacket_pagebuffer(struct vmbus_channel *channel, + struct hv_page_buffer pagebuffers[], + u32 pagecount, void *buffer, u32 bufferlen, + u64 requestid) { int i; struct vmbus_channel_packet_page_buffer desc; @@ -750,7 +741,7 @@ int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel, /* Setup the descriptor */ desc.type = VM_PKT_DATA_USING_GPA_DIRECT; - desc.flags = flags; + desc.flags = VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED; desc.dataoffset8 = descsize >> 3; /* in 8-bytes granularity */ desc.length8 = (u16)(packetlen_aligned >> 3); desc.transactionid = requestid; @@ -771,24 +762,6 @@ int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel, return hv_ringbuffer_write(channel, bufferlist, 3); } -EXPORT_SYMBOL_GPL(vmbus_sendpacket_pagebuffer_ctl); - -/* - * vmbus_sendpacket_pagebuffer - Send a range of single-page buffer - * packets using a GPADL Direct packet type. - */ -int vmbus_sendpacket_pagebuffer(struct vmbus_channel *channel, - struct hv_page_buffer pagebuffers[], - u32 pagecount, void *buffer, u32 bufferlen, - u64 requestid) -{ - u32 flags = VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED; - - return vmbus_sendpacket_pagebuffer_ctl(channel, pagebuffers, pagecount, - buffer, bufferlen, - requestid, flags); - -} EXPORT_SYMBOL_GPL(vmbus_sendpacket_pagebuffer); /* @@ -828,62 +801,6 @@ int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel, } EXPORT_SYMBOL_GPL(vmbus_sendpacket_mpb_desc); -/* - * vmbus_sendpacket_multipagebuffer - Send a multi-page buffer packet - * using a GPADL Direct packet type. - */ -int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel, - struct hv_multipage_buffer *multi_pagebuffer, - void *buffer, u32 bufferlen, u64 requestid) -{ - struct vmbus_channel_packet_multipage_buffer desc; - u32 descsize; - u32 packetlen; - u32 packetlen_aligned; - struct kvec bufferlist[3]; - u64 aligned_data = 0; - u32 pfncount = NUM_PAGES_SPANNED(multi_pagebuffer->offset, - multi_pagebuffer->len); - - if (pfncount > MAX_MULTIPAGE_BUFFER_COUNT) - return -EINVAL; - - /* - * Adjust the size down since vmbus_channel_packet_multipage_buffer is - * the largest size we support - */ - descsize = sizeof(struct vmbus_channel_packet_multipage_buffer) - - ((MAX_MULTIPAGE_BUFFER_COUNT - pfncount) * - sizeof(u64)); - packetlen = descsize + bufferlen; - packetlen_aligned = ALIGN(packetlen, sizeof(u64)); - - - /* Setup the descriptor */ - desc.type = VM_PKT_DATA_USING_GPA_DIRECT; - desc.flags = VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED; - desc.dataoffset8 = descsize >> 3; /* in 8-bytes granularity */ - desc.length8 = (u16)(packetlen_aligned >> 3); - desc.transactionid = requestid; - desc.rangecount = 1; - - desc.range.len = multi_pagebuffer->len; - desc.range.offset = multi_pagebuffer->offset; - - memcpy(desc.range.pfn_array, multi_pagebuffer->pfn_array, - pfncount * sizeof(u64)); - - bufferlist[0].iov_base = &desc; - bufferlist[0].iov_len = descsize; - bufferlist[1].iov_base = buffer; - bufferlist[1].iov_len = bufferlen; - bufferlist[2].iov_base = &aligned_data; - bufferlist[2].iov_len = (packetlen_aligned - packetlen); - - return hv_ringbuffer_write(channel, bufferlist, 3); -} -EXPORT_SYMBOL_GPL(vmbus_sendpacket_multipagebuffer); - /** * vmbus_recvpacket() - Retrieve the user packet on the specified channel * @channel: Pointer to vmbus_channel structure. |