> -Original Message-
> From: Tom Talpey
> Sent: Monday, August 14, 2017 2:03 PM
> To: Long Li ; Steve French ;
> linux-c...@vger.kernel.org; samba-techni...@lists.samba.org; linux-
> ker...@vger.kernel.org
> Subject: RE: [[PATCH v1] 23/37] [CIFS] SMBD: Implement API
> -Original Message-
> From: Tom Talpey
> Sent: Monday, August 14, 2017 2:20 PM
> To: Long Li ; Steve French ;
> linux-c...@vger.kernel.org; samba-techni...@lists.samba.org; linux-
> ker...@vger.kernel.org
> Subject: RE: [[PATCH v1] 30/37] [CIFS] SMBD: Add S
> -Original Message-
> From: Tom Talpey
> Sent: Monday, August 14, 2017 2:12 PM
> To: Long Li ; Steve French ;
> linux-c...@vger.kernel.org; samba-techni...@lists.samba.org; linux-
> ker...@vger.kernel.org
> Cc: Long Li
> Subject: RE: [[PATCH v1] 25/37] [CIFS]
> -Original Message-
> From: Tom Talpey
> Sent: Monday, August 14, 2017 2:07 PM
> To: Long Li ; Steve French ;
> linux-c...@vger.kernel.org; samba-techni...@lists.samba.org; linux-
> ker...@vger.kernel.org
> Subject: RE: [[PATCH v1] 24/37] [CIFS] SMBD: Suppor
> -Original Message-
> From: Tom Talpey
> Sent: Monday, August 14, 2017 1:57 PM
> To: Long Li ; Steve French ;
> linux-c...@vger.kernel.org; samba-techni...@lists.samba.org; linux-
> ker...@vger.kernel.org
> Subject: RE: [[PATCH v1] 21/37] [CIFS] SMBD: Implement API
> -Original Message-
> From: Tom Talpey
> Sent: Monday, August 14, 2017 1:47 PM
> To: Long Li ; Steve French ;
> linux-c...@vger.kernel.org; samba-techni...@lists.samba.org; linux-
> ker...@vger.kernel.org
> Subject: RE: [[PATCH v1] 19/37] [CIFS] SMBD: Manage credits
> -Original Message-
> From: Tom Talpey
> Sent: Monday, August 14, 2017 1:23 PM
> To: Long Li ; Steve French ;
> linux-c...@vger.kernel.org; samba-techni...@lists.samba.org; linux-
> ker...@vger.kernel.org
> Subject: RE: [[PATCH v1] 14/37] [CIFS] SMBD: Post a SMBD da
> -Original Message-
> From: Tom Talpey
> Sent: Monday, August 14, 2017 12:29 PM
> To: Christoph Hellwig ; Long Li
> Cc: Steve French ; linux-c...@vger.kernel.org; samba-
> techni...@lists.samba.org; linux-kernel@vger.kernel.org
> Subject: RE: [[PATCH v1] 04/37] [C
> -Original Message-
> From: Tom Talpey
> Sent: Monday, August 14, 2017 12:10 PM
> To: Long Li ; Steve French ;
> linux-c...@vger.kernel.org; samba-techni...@lists.samba.org; linux-
> ker...@vger.kernel.org
> Subject: RE: [[PATCH v1] 01/37] [CIFS] SMBD: Add parsing
> -Original Message-
> From: Tom Talpey
> Sent: Monday, August 14, 2017 12:00 PM
> To: Long Li ; Christoph Hellwig
> Cc: Steve French ; linux-c...@vger.kernel.org; samba-
> techni...@lists.samba.org; linux-kernel@vger.kernel.org
> Subject: RE: [[PATCH v1] 16/37] [CI
> -Original Message-
> From: Christoph Hellwig [mailto:h...@infradead.org]
> Sent: Sunday, August 13, 2017 3:24 AM
> To: Long Li
> Cc: Steve French ; linux-c...@vger.kernel.org; samba-
> techni...@lists.samba.org; linux-kernel@vger.kernel.org; Long Li
>
> Subjec
> -Original Message-
> From: Christoph Hellwig [mailto:h...@infradead.org]
> Sent: Sunday, August 13, 2017 3:20 AM
> To: Long Li
> Cc: Steve French ; linux-c...@vger.kernel.org; samba-
> techni...@lists.samba.org; linux-kernel@vger.kernel.org; Long Li
>
> Subjec
> -Original Message-
> From: Stefan Metzmacher [mailto:me...@samba.org]
> Sent: Monday, August 14, 2017 6:41 AM
> To: Long Li ; Steve French ;
> linux-c...@vger.kernel.org; samba-techni...@lists.samba.org; linux-
> ker...@vger.kernel.org; linux-r...@vger.kernel.org;
> -Original Message-
> From: Christoph Hellwig [mailto:h...@infradead.org]
> Sent: Sunday, August 13, 2017 3:28 AM
> To: Long Li
> Cc: Steve French ; linux-c...@vger.kernel.org; samba-
> techni...@lists.samba.org; linux-kernel@vger.kernel.org; Long Li
>
> Subjec
> -Original Message-
> From: Stefan Metzmacher [mailto:me...@samba.org]
> Sent: Monday, August 7, 2017 11:58 PM
> To: Steve French ; linux-c...@vger.kernel.org; samba-
> techni...@lists.samba.org; linux-kernel@vger.kernel.org
> Cc: Long Li
> Subject: Re: [[PATCH v
From: Long Li
Define the packet format for a SMBD data packet with payload
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.h | 15 +++
1 file changed, 15 insertions(+)
diff --git a/fs/cifs/cifsrdma.h b/fs/cifs/cifsrdma.h
index 78ce2bf..ed0ff54 100644
--- a/fs/cifs/cifsrdma.h
+++ b/fs
From: Long Li
Implement the code for connecting to SMBD server. The client and server are
connected using RC Queue Pair over RDMA API, which suppports Infiniband, RoCE
and iWARP. Upper layer code can call cifs_create_rdma_session to establish a
SMBD RDMA connection.
Signed-off-by: Long Li
From: Long Li
Define a new structure for SMBD transport. This stucture will have all the
information on the transport, and it will be stored in the current SMB session.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 56 ++
fs/cifs
From: Long Li
For each channel, SMBD defines per-channel parameters. Those can be negotiated
with the server, and are restricted by RDMA hardware limitations.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 14 ++
fs/cifs/cifsrdma.h | 13 +
2 files changed, 27
From: Long Li
In preparation for handling sending SMBD requests, add code to handle the send
completion. In send complemention, the SMBD transport is responsible for
freeing resources used in send.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 25 +
1 file changed
From: Long Li
Add code to post a receive request to RDMA. Before the SMB server can send a
packet to SMB client via SMBD, a receive request must be posted to local RDMA
layer.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 124 +
fs/cifs
From: Long Li
Implement cifs_rdma_write for send an upper layer data. Upper layer uses this
function to do a RDMA send. This function is also used to pass SMB packets for
doing a RDMA read/write via memory registration.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 177
From: Long Li
Define SMBD request. Unlike SMBD response, SMBD request doesn't use
pre-allocated buffers. Data payload is passed from upper layer provided data
buffers. SMBD requests are allocated through per-channel mempool.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c
From: Long Li
All the data recevied via SMBD are placed in the reassembly queue. When upper
layer reads data, it looks into reassembly queue. The SMBD layer is responsibe
for passing a complete SMB packet to upper layer.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 52
From: Long Li
Introduce status for tracking the status of SMBD transport. They are used in
transport reconnect and shutdown.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 25 +
fs/cifs/cifsrdma.h | 11 +++
2 files changed, 36 insertions(+)
diff --git a/fs
From: Long Li
Similar to sending transfer message with page payload, this function creates a
SMBD data packet and send it over to RDMA, from iov passed from upper layer.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 119 +
1 file changed
From: Long Li
Now we have all the code in place to support SMBD protocol negotiation with SMB
server. SMBD negotiation is defined in [MS-SMBD] 3.1.5. After negotiation, the
client and server are connected through SMBD, and they can use SMBD to transfer
data payloads.
Signed-off-by: Long Li
From: Long Li
Add the function to send a SMBD data transfer message to server with page
passed from upper layer.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 113 +
1 file changed, 113 insertions(+)
diff --git a/fs/cifs/cifsrdma.c b/fs
From: Long Li
With reassembly queue in place, implement the API for upper layer to recevie
data. This call may sleep if there is not enough data in the reassembly queue.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 110 +
fs/cifs
From: Long Li
Define wait queue in preparation for implement SMBD send. SMBD uses credit
based flow control system, if the client doesn't have enough credits then it
must wait for credits.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 1 +
fs/cifs/cifsrdma.h | 2 ++
2 files chang
From: Long Li
SMBD transport code will use those logging functions for debug.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 52
1 file changed, 52 insertions(+)
diff --git a/fs/cifs/cifsrdma.c b/fs/cifs/cifsrdma.c
index a2c0478..3c9f478
From: Long Li
Implement the function to send a SMBD message with no payload. This is required
at times when we want to extend credtis to server to have it continue to send
data, without sending any actual data payload.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 96
From: Long Li
SMBD tranport defines several debug counters. Add them to common CIFS to export
those under /proc.
Signed-off-by: Long Li
---
fs/cifs/cifs_debug.c | 23 +++
1 file changed, 23 insertions(+)
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index
From: Long Li
When CIFS wants to reconnect a SMB session, use SMBD if it's being used.
Signed-off-by: Long Li
---
fs/cifs/connect.c | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 1ba5b92..54c1f7c 100644
--- a/fs
From: Long Li
When receiving data, upper layer looks at which transport is being used. If
SMBD is used, read from SMBD.
Signed-off-by: Long Li
---
fs/cifs/connect.c | 8
1 file changed, 8 insertions(+)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index cc58cd8..5ac8af0 100644
From: Long Li
With the SMBD transport implemented, now add to the SMB session context. Now
the upper layer can use SMBD transport in a SMB session.
Signed-off-by: Long Li
---
fs/cifs/cifsglob.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index
From: Long Li
This is part of the keep alive protocol. Each peer maintains a timer, and will
send a message to peer when it expires.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 25 +
fs/cifs/cifsrdma.h | 6 --
2 files changed, 29 insertions(+), 2 deletions
From: Long Li
At times when credits is exhausted and nearing exhausted, the peer needs to
promptly extend credits to peers after freeing local resources for RDMA
operations. When there is no data to send and we want to extend credits to
server, an empty packet is used to extend credits to
From: Long Li
When RDMA connection is terminated, the transport needs to destroy the
transport and free its resources. At this point, we no longer have a RDMA
connection to server.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 56 ++
fs
From: Long Li
Upper layer calls to destroy transport when SMB directory is umounted or system
is in shutdown state. SMBD is responsible for disconnecting from remote peer
and freeing all the resources after it's disconnected.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c
From: Long Li
Upper layer may request to reconnect to server for multiple reason. Disconnect
can happen at SMB layer or at SMBD layer. Add function to support reconnect
when transport is disconnected.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 24
fs/cifs
From: Long Li
Sometime Queue Pair may have errors if hardware is having trouble with
connectivity issues. In this case, SMBD should terminate the RDMA connetion.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 18 ++
fs/cifs/cifsrdma.h | 1 +
2 files changed, 19 insertions
From: Long Li
SMBD uses a keep alive protocol to help peers detect if the remote is dead.
When peer request keep alive, the transport needs to respond accordingly.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 30 ++
fs/cifs/cifsrdma.h | 7 +++
2 files
From: Long Li
Signed-off-by: Long Li
---
fs/cifs/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile
index eed7eb0..7175e25 100644
--- a/fs/cifs/Makefile
+++ b/fs/cifs/Makefile
@@ -18,4 +18,4 @@ cifs-$(CONFIG_CIFS_DFS_UPCALL
From: Long Li
When SMBD is used in the SMB session, destroy it on exit.
Signed-off-by: Long Li
---
fs/cifs/connect.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 54c1f7c..cc58cd8 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
From: Long Li
When "-o rdma" is specified, attempt to connect to SMB server via SMBD.
Signed-off-by: Long Li
---
fs/cifs/connect.c | 23 +++
1 file changed, 19 insertions(+), 4 deletions(-)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 0dc942c..1ba5
From: Long Li
Create recevie buffers to handling SMBD response messages. Each SMBD response
message is assocated with a receive buffer, where the message payload is
received. The number of receive buffer is determine after negotiating SMBD
transport with the server.
Signed-off-by: Long Li
From: Long Li
When sending data, send to SMBD is it's currently used.
Signed-off-by: Long Li
---
fs/cifs/transport.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index ba62aaf..10b9d15 100644
--- a/fs/cifs/transport.c
+++ b/fs
From: Long Li
Sometimes upper layer may also want to read data to a page. Implement this API.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 30 ++
fs/cifs/cifsrdma.h | 2 ++
2 files changed, 32 insertions(+)
diff --git a/fs/cifs/cifsrdma.c b/fs/cifs/cifsrdma.c
From: Long Li
SMB client and server maintain a credit system on the SMBD transport. Credits
are used to tell when the client or server can send a packet to the peer, based
on current memory or resource usage.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 45
From: Long Li
Define the data structure for receiving a SMBD response. SMBD responses are
allocated through a per-channel mempool. For each server initiated response
message, the SMB client must post a SMBD response to the local hardware.
Signed-off-by: Long Li
---
fs/cifs/cifsrdma.c | 13
From: Long Li
SMB3 defines a protocol for transfer data over RDMA transport such as
Infiniband, RoCE and iWARP. The prococol is published in [MS-SMBD]
(https://msdn.microsoft.com/en-us/library/hh536346.aspx).
This is the series 1 of two patch sets. This patch set implements the SMBD
From: Long Li
When doing mount with "-o rdma", user can specify this is for connecting to a
SMBD session.
Signed-off-by: Long Li
---
fs/cifs/cifs_debug.c | 2 ++
fs/cifs/cifsfs.c | 2 ++
fs/cifs/cifsglob.h | 2 ++
fs/cifs/connect.c| 10 +-
4 files changed, 15
From: Long Li
In cifs_call_async, server may respond as soon as I/O is submitted. Because
mid entry is freed on the return path, it should not be modified after I/O
is submitted.
cifs_save_when_sent modifies the sent timestamp in mid entry, and should not
be called after I/O. Call it before I/O
From: Long Li
In cifs_call_async, server may respond as soon as I/O is submitted. Because
mid entry is freed on the return path, it should not be modified after I/O
is submitted.
cifs_save_when_sent modifies the sent timestamp in mid entry, and should not
be called after I/O. Call it before I/O
From: Long Li
In cifs_call_async, server may respond as soon as I/O is submitted. Because
mid entry is freed on the return path, it should not be modified after I/O
is submitted.
cifs_save_when_sent modifies the sent timestamp in mid entry, and should not
be called after I/O. Call it before I
> -Original Message-
> From: Pavel Shilovsky [mailto:piastr...@gmail.com]
> Sent: Wednesday, June 28, 2017 11:23 AM
> To: Long Li
> Cc: Steve French ; linux-cifs c...@vger.kernel.org>; samba-technical ;
> Kernel Mailing List ; Long Li
>
> Subject: Re:
From: Long Li
In cifs_call_async, server response may return as soon as I/O is submitted.
Because mid entry is freed on the return path, do not modify it after I/O is
submitted.
Signed-off-by: Long Li
---
fs/cifs/transport.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a
From: Long Li
In cifs_call_async, server response may return as soon as I/O is submitted.
Do not touch it after that.
Signed-off-by: Long Li
---
fs/cifs/transport.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 47a125e
> -Original Message-
> From: Johannes Thumshirn [mailto:jthumsh...@suse.de]
> Sent: Wednesday, June 14, 2017 1:25 AM
> To: Long Li ; James E.J. Bottomley
> ; Martin K. Petersen ;
> linux-s...@vger.kernel.org; linux-kernel@vger.kernel.org; KY Srinivasan
> ; Bart Van
From: Long Li
FC disks issue I/O directly to the host storage port driver, this is
diffirent to VHD disks where I/O is virtualized and timeout is handled
by the host VSP (Virtualization Service Provider).
FC disks are usually setup in a multipath system, and they don't want to
reset timer
> -Original Message-
> From: Bart Van Assche [mailto:bart.vanass...@sandisk.com]
> Sent: Tuesday, June 13, 2017 8:38 AM
> To: linux-kernel@vger.kernel.org; KY Srinivasan ;
> martin.peter...@oracle.com; linux-s...@vger.kernel.org; Stephen Hemminger
> ; Long Li ;
> j.
From: Long Li
FC disks are usually setup in a multipath system, and they don't want to
unconditionaly reset I/O on timeout. I/O timeout is detected by multipath
as a good time to failover and recover.
Signed-off-by: Long Li
---
drivers/scsi/storvsc_drv.c | 7 +++
1 file chang
From: Long Li
In lower layer driver's (LLD) scsi_host_template, the driver may optionally
ask SCSI to allocate its private driver memory for each command, by
specifying cmd_size. This memory is allocated at the end of scsi_cmnd by SCSI.
Later when SCSI queues a command, the LLD ca
> -Original Message-
> From: Bart Van Assche [mailto:bart.vanass...@sandisk.com]
> Sent: Thursday, May 18, 2017 8:52 AM
> To: h...@infradead.org
> Cc: j...@linux.vnet.ibm.com; linux-s...@vger.kernel.org; linux-
> ker...@vger.kernel.org; Stephen Hemminger ; KY
>
> -Original Message-
> From: Bart Van Assche [mailto:bart.vanass...@sandisk.com]
> Sent: Monday, May 15, 2017 5:01 PM
> To: j...@linux.vnet.ibm.com; linux-s...@vger.kernel.org; linux-
> ker...@vger.kernel.org; Long Li ;
> martin.peter...@oracle.com
> Cc: Stephen Hemm
> -Original Message-
> From: Bart Van Assche [mailto:bart.vanass...@sandisk.com]
> Sent: Monday, May 15, 2017 4:03 PM
> To: j...@linux.vnet.ibm.com; linux-s...@vger.kernel.org; linux-
> ker...@vger.kernel.org; Long Li ;
> martin.peter...@oracle.com
> Cc: Long Li
>
> -Original Message-
> From: Long Li [mailto:lon...@exchange.microsoft.com]
> Sent: Wednesday, May 10, 2017 2:07 PM
> To: James E.J. Bottomley ; Martin K. Petersen
> ; linux-s...@vger.kernel.org; linux-
> ker...@vger.kernel.org
> Cc: Long Li
> Subject: [PATCH] s
From: Long Li
Lower layer driver may not initialize private data before use. Zero them
out to prevent use of stale data.
Signed-off-by: Long Li
---
drivers/scsi/scsi_lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
> -Original Message-
> From: linux-block-ow...@vger.kernel.org [mailto:linux-block-
> ow...@vger.kernel.org] On Behalf Of Long Li
> Sent: Friday, April 14, 2017 1:12 AM
> To: Bart Van Assche ; linux-
> ker...@vger.kernel.org; linux-bl...@vger.kernel.org; KY Srinivasan
&
> -Original Message-
> From: Bart Van Assche [mailto:bart.vanass...@sandisk.com]
> Sent: Monday, April 10, 2017 4:48 PM
> To: linux-kernel@vger.kernel.org; linux-bl...@vger.kernel.org; KY Srinivasan
> ; Long Li ; ax...@kernel.dk
> Cc: Stephen Hemminger
> Subject:
> -Original Message-
> From: KY Srinivasan
> Sent: Wednesday, April 5, 2017 9:21 PM
> To: Bart Van Assche ; linux-
> ker...@vger.kernel.org; linux-bl...@vger.kernel.org; Long Li
> ; ax...@kernel.dk
> Cc: Stephen Hemminger
> Subject: RE: [PATCH] block-mq:
> -Original Message-
> From: Bart Van Assche [mailto:bart.vanass...@sandisk.com]
> Sent: Wednesday, April 5, 2017 5:32 PM
> To: linux-kernel@vger.kernel.org; linux-bl...@vger.kernel.org; Long Li
> ; ax...@kernel.dk
> Cc: Stephen Hemminger ; KY Srinivasan
> ; L
From: Long Li
Under heavy I/O, one hardware queue may be unable to dispatch any I/O to the
device layer. This poses a problem with restarting this hardware queue on I/O
finish in blk_mq_sched_restart_queues(), becaue there is nothing pending that
will finish in future on this hardware qeueu
Srinivasan
>
> The memory allocation here needs to be non-blocking.
> Fix the issue.
>
> Signed-off-by: K. Y. Srinivasan
> Cc:
Reviewed-by: Long Li
> ---
> drivers/pci/host/pci-hyperv.c |2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> di
inity
>
> From: K. Y. Srinivasan
>
> When we have 32 or more CPUs in the affinity mask, we should use a special
> constant to specify that to the host. Fix this issue.
>
> Signed-off-by: K. Y. Srinivasan
> Cc:
Reviewed-by: Long Li
> ---
> drivers/pci/host/pci-hyp
From: Long Li
The host may send multiple negotiation packets (due to timeout) before the
KVP user-mode daemon is connected. We need to defer processing those packets
until the daemon is negotiated and connected. It's okay for guest to respond
to all negotiation packets.
In addition, the
From: Long Li
The host may send multiple negotiation packets (due to timeout) before the
KVP user-mode daemon is connected. We need to defer processing those packets
until the daemon is negotiated and connected. It's okay for guest to respond
to all negotiation packets.
In addition, the
From: Long Li
hv_pci_devices_present is called in hv_pci_remove when we remove a PCI
device from host (e.g. by disabling SRIOV on a device). In hv_pci_remove,
the bus is already removed before the call, so we don't need to rescan the
bus in the workqueue scheduled from hv_pci_devices_pr
From: Long Li
A PCI_EJECT message can arrive at the same time we are calling
pci_scan_child_bus in the workqueue for the previous PCI_BUS_RELATIONS
message or in create_root_hv_pci_bus(), in this case we could potentially
modify the bus from multiple places.
Properly lock the bus access
> -Original Message-
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> Sent: Thursday, March 23, 2017 9:04 AM
> To: Long Li
> Cc: KY Srinivasan ; Haiyang Zhang
> ; Stephen Hemminger
> ; de...@linuxdriverproject.org; linux-
> ker...@vger.kernel.org; sta...@v
> -Original Message-
> From: Bjorn Helgaas [mailto:helg...@kernel.org]
> Sent: Thursday, March 16, 2017 1:07 PM
> To: Long Li
> Cc: KY Srinivasan ; Haiyang Zhang
> ; Bjorn Helgaas ;
> de...@linuxdriverproject.org; linux-...@vger.kernel.org; linux-
> ker...@vger.
send multiple staged KVP requests as soon as
negotiation is done. We need to properly process those packets using
one tasklet for exclusive access to ring buffer.
This patch is based on the work of Nick Meier
The patch v2 has incorporated suggestion from Vitaly Kuznetsov
.
Signed-off-by: Lo
> -Original Message-
> From: Long Li
> Sent: Sunday, March 19, 2017 7:49 PM
> To: 'Vitaly Kuznetsov'
> Cc: KY Srinivasan ; Haiyang Zhang
> ; Stephen Hemminger
> ; de...@linuxdriverproject.org; linux-
> ker...@vger.kernel.org
> Subject: RE: [PATCH
> -Original Message-
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> Sent: Friday, March 17, 2017 9:16 AM
> To: Long Li
> Cc: KY Srinivasan ; Haiyang Zhang
> ; Stephen Hemminger
> ; de...@linuxdriverproject.org; linux-
> ker...@vger.kernel.org
> Subjec
> -Original Message-
> From: Bjorn Helgaas [mailto:helg...@kernel.org]
> Sent: Thursday, March 16, 2017 1:07 PM
> To: Long Li
> Cc: KY Srinivasan ; Haiyang Zhang
> ; Bjorn Helgaas ;
> de...@linuxdriverproject.org; linux-...@vger.kernel.org; linux-
> ker...@vger.
The host may send multiple KVP packets before the negotiation with daemon
is finished. We need to keep those packets in ring buffer until the daemon
is negotiated and connected.
This patch is based on the work of Nick Meier
Signed-off-by: Long Li
---
drivers/hv/hv_kvp.c | 9 +
1 file
ucing status hv_pcibus_removed, we can avoid this situation.
Signed-off-by: Long Li
Reported-by: Xiaofeng Wang
Acked-by: K. Y. Srinivasan
---
drivers/pci/host/pci-hyperv.c | 20 +---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/host/pci-hyperv.c b/dr
for pointing out the race condition in
create_root_hv_pci_bus().
Signed-off-by: Long Li
Reported-by: Xiaofeng Wang
Acked-by: K. Y. Srinivasan
---
drivers/pci/host/pci-hyperv.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/pci/host/pci-hyperv.c b/drivers/pci/host/pci
Ok, I will resend.
> -Original Message-
> From: Greg KH [mailto:g...@kroah.com]
> Sent: Saturday, February 25, 2017 12:02 AM
> To: Long Li
> Cc: KY Srinivasan ; Haiyang Zhang
> ; Bjorn Helgaas ;
> de...@linuxdriverproject.org; linux-kernel@vger.kernel.org; linux-
&
for pointing out the race condition in
create_root_hv_pci_bus().
Signed-off-by: Long Li
Reported-by: Xiaofeng Wang
Acked-by: K. Y. Srinivasan
---
drivers/pci/host/pci-hyperv.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/pci/host/pci-hyperv.c b/drivers/pci/host/pci-hyperv.c
ucing status
hv_pcibus_removed, we can avoid this situation.
Signed-off-by: Long Li
Reported-by: Xiaofeng Wang
Acked-by: K. Y. Srinivasan
---
drivers/pci/host/pci-hyperv.c | 20 +---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/host/pci-hyper
> -Original Message-
> From: Bjorn Helgaas [mailto:bhelg...@google.com]
> Sent: Saturday, February 11, 2017 9:35 AM
> To: Long Li
> Cc: KY Srinivasan ; Haiyang Zhang
> ; de...@linuxdriverproject.org; linux-
> p...@vger.kernel.org; linux-kernel@vger.kernel.org
> Su
> Sent: Friday, January 27, 2017 10:42 AM
> To: Long Li ; Haiyang Zhang
> ; Bjorn Helgaas
> Cc: de...@linuxdriverproject.org; linux-...@vger.kernel.org; linux-
> ker...@vger.kernel.org; Long Li
> Subject: RE: [Resend PATCH 1/2 v3] pci-hyperv: properly handle pci bus
> remove
> -Original Message-
> From: Dexuan Cui
> Sent: Sunday, January 15, 2017 7:12 PM
> To: Long Li ; KY Srinivasan ;
> Haiyang Zhang
> Cc: de...@linuxdriverproject.org; linux-kernel@vger.kernel.org
> Subject: RE: [PATCH] hv: use substraction to update ring buffer ind
Hi Bjorn,
The patch is still pending (along with 1/2 v3). Please let me know if you want
me to resend the two patches.
Thanks
Long
> -Original Message-
> From: KY Srinivasan
> Sent: Tuesday, October 4, 2016 1:49 PM
> To: Long Li ; Haiyang Zhang
> ; Bjorn He
Hi Bjorn
This patch is still pending. The patch has been ack'ed.
Do you want me to resend this patch?
Thanks
Long
> -Original Message-
> From: KY Srinivasan
> Sent: Friday, November 11, 2016 2:21 PM
> To: Bjorn Helgaas ; Long Li
> Cc: Haiyang Zhang ;
> -Original Message-
> From: Greg KH [mailto:g...@kroah.com]
> Sent: Friday, January 06, 2017 11:43 PM
> To: Long Li
> Cc: KY Srinivasan ; Haiyang Zhang
> ; de...@linuxdriverproject.org; linux-
> ker...@vger.kernel.org
> Subject: Re: [PATCH v2] hv: retry
> -Original Message-
> From: Greg KH [mailto:g...@kroah.com]
> Sent: Wednesday, January 04, 2017 11:48 PM
> To: Long Li
> Cc: KY Srinivasan ; Haiyang Zhang
> ; de...@linuxdriverproject.org; linux-
> ker...@vger.kernel.org
> Subject: Re: [PATCH v2] hv: retry
> -Original Message-
> From: Dan Carpenter [mailto:dan.carpen...@oracle.com]
> Sent: Thursday, January 05, 2017 3:40 AM
> To: Long Li
> Cc: KY Srinivasan ; Haiyang Zhang
> ; de...@linuxdriverproject.org; linux-
> ker...@vger.kernel.org
> Subject: Re: [PATCH]
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