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2023-02-28Fix typos in the remaining lib foldersThomas Huth2-4/+4
Found with the "codespell" utility. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2021-02-12virtio: Compile with -WextraAlexey Kardashevskiy2-5/+5
-Wextra enables a bunch of rather useful checks which this fixes. Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2020-03-11virtio-serial: Close device completelyAlexey Kardashevskiy1-0/+7
Linux closes stdout at the end of prom_init which triggers the FW quiesce code which closes the virtio-serial instance. This misses stopping the virtio queues. However this seemed working for a little longer (until the Linux driver took over) till 300384f3dc68 which moved the VQ descriptors around which caused use-after-free corruption. This adds virtio_queue_term_vq(), cleanup in the forth driver and a few checks. Fixes: 300384f3dc68 ("virtio: Store queue descriptors in virtio_device") Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> [groug: - fix changelog - don't restore emit] Signed-off-by: Greg Kurz <groug@kaod.org> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2020-03-06virtio: Fix typo in virtio_serial_init()Cédric Le Goater1-1/+1
Fixes: 300384f3dc68 ("virtio: Store queue descriptors in virtio_device") Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Greg Kurz <groug@kaod.org> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2019-12-05virtio: Enable IOMMUAlexey Kardashevskiy7-6/+116
When QEMU is started with iommu_platform=on, the guest driver must accept it or the device will fail. This enables IOMMU support for virtio-net, -scsi, -block, -serial, -9p devices. -serial and -9p are only compile tested though. For virtio-net we map all RX buffers once and TX when xmit() is called and unmap older pages when we are about to reuse the VQ descriptor. As all other devices are synchronous, we unmap IOMMU pages right after completion of a transaction. This depends on QEMU's: https://patchwork.ozlabs.org/patch/1194067/ Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Tested-by: Michael Roth <mdroth@linux.vnet.ibm.com> --- Changes: v5: * fixed queue size calculation * reworked virtio_free_desc() to only unmap what is has mapped v4: * ditched vqs->id in virtio_queue_init_vq v2: * added Mike's fs/dma-instance-function.fs * total rework
2019-12-05virtio-net: Init queues after features negotiationAlexey Kardashevskiy1-13/+14
Every virtio device negotiates virtio protocol features before setting up internal queue descriptors with one exception which is virtio-net. This moves virtio_queue_init_vq() later to have feature negotiation happened sooner. This is going to be used for IOMMU setup later. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2019-12-05virtio: Store queue descriptors in virtio_deviceAlexey Kardashevskiy9-251/+174
At the moment desc/avail/used pointers are read from the device every time we need them. This works for now unless iommu_platform=on is used, desc/avail/used stored in the config space are bus addresses while SLOF should keep using the guest physical addresses. virtio-net stores queue descriptors already, virtio-serial does it in global statics, move them into virtio_device. The next patch will use this to allow IOMMU. While at this, move repeating avail->flags/idx setup into virtio_queue_init_vq() except virtio-serial which vq_rx->avail->idx is setup differently. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> --- Changes: v4: * removed vqs::id as it is not really used * replaced vq_size with vq->size in virtio-serial.c
2019-11-11virtio: Make virtio_set_qaddr staticAlexey Kardashevskiy4-11/+1
It is never called outside of virtio, make it static. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2017-12-11libvirtio: Mark struct virtio_scsi_req_cmd as packedThomas Huth1-1/+1
The struct contains an uneven amount of bytes, so we should use the "packed" attribute to avoid padding problems here. So far the problems did not show up yet since the struct is filled by Forth code only and QEMU seems to be quite forgiving about the length of the descriptor, but anyway, let's better be safe than sorry here. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2017-08-07virtio-net: rework the driver to support multiple openNikunj A Dadhania5-92/+128
Found that virtio-net is using a around 200K receive buffer per device, if we connect more than 40 virtio-net devices the heap(8MB) gets over. Because of which allocation starts failing and the VM does not boot. Moreover, the driver did not support opening multiple device, which is possible using the OF client interface. As it was using globals to store the state information of the driver. Now the driver allocates a virtio_net structure during device open stage and fills in the state information. This details are used during various device functions and finally for cleaning up on close operation. Now as the buffer memory is allocated during open and freed during the close operations the heap usage is contained. Reported-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2017-02-06virtio-scsi: initialize vring avail queue buffersLaurent Vivier1-13/+15
virtioscsi_init() uses the result of virtio_get_vring_avail() whereas the queue is not enabled: on the first boot, its value is NULL and the driver uses this to communicate with the device. After a reboot, its value is the one given by the OS driver, and it works if the address is in a range SLOF can access. In some cases, for instance with NUMA nodes and hotplugged memory, SLOF cannot access the address set by the kernel, and virtioscsi_init() fails with a data storage exception. To set the vring avail buffer address, we need to enable the queue, what is done by virtio_set_qaddr(). This patch fixes the problem by calling virtio_queue_init_vq() (like other virtio drivers) in virtioscsi_init() as it allocates memory and enables the queue. virtio_queue_init_vq() also replaces the calls to virtio_vring_size() and virtio_get_vring_avail(). Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2017-02-03virtio: Remove global variables in block and 9p driverThomas Huth2-12/+6
No need for a global variable to store the virtqueue information here, thus let's remove the global vq variable and make it local to the init function instead. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-11-24virtio: Implement block write supportThomas Huth4-14/+28
Refactor the virtio-block code a little bit to provide block write access, too. Write access to the first 34 sectors is not allowed, though, to avoid that the user / client program accidentially destroys the partition table. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-11-24virtio-scsi: Fix descriptor order for SCSI WRITE commandsThomas Huth1-5/+14
Virtio needs the descriptors ordered: All descriptors for buffers that contain data that should go *to* the device have to be put into the queue first. The descriptors for buffers that read *from* the device have to be sorted in last. For SCSI WRITE commands (which we never used in the past), the order was wrong, so QEMU complains with a "Incorrect order for descriptors" message as soon as we use it for SCSI WRITE commands. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-11-10virtio: Fix stack comment of virtio-blk-readThomas Huth1-1/+1
The real parameters differ from the current stack comment. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-10-19virtio-serial: Fix compile errorAlexey Kardashevskiy1-1/+2
This stops using C99 declaration which breaks compile on gcc 4.8. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Tested-by: Thomas Huth <thuth@redhat.com>
2016-10-13Add virtio-serial device supportNikunj A Dadhania5-1/+269
Add support for virtio serial device to be used as a console device. Currently, SLOF only supports spapr-vty device. With this addition virtio console can be used during boot. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-06-27virtio-net: fix ring handling in receiveNikunj A Dadhania1-2/+4
A bug crept in while doing the virtio 1.0 enablement in commit 6e4d62c2 (virtio-net: enable virtio 1.0) + idx = virtio_modern16_to_cpu(&virtiodev, vq_rx.used->idx); [...] - vq_rx.avail->ring[vq_rx.avail->idx % vq_rx.size] = id - 1; + vq_rx.avail->ring[idx % vq_rx.size] = virtio_cpu_to_modern16(&virtiodev, id - 1); sync(); - vq_rx.avail->idx += 1; + vq_rx.avail->idx = virtio_cpu_to_modern16(&virtiodev, idx + 1); Should be using avail->idx in place of used->idx. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-05-02virtio: White space cleanup in virtio-9p.cThomas Huth1-6/+6
Simple cosmetical fix - some lines were indented with spaces instead of tabs. Change it to be in line with the coding conventions. Signed-off-by: Thomas Huth <thuth@redhat.com> Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-05-02virtio: Add modern version 1.0 support to 9p driverThomas Huth1-18/+19
Allow the new little-endian ring format for the 9p driver, too, just like it has already been done for the other virtio devices. Signed-off-by: Thomas Huth <thuth@redhat.com> Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-11virtio-scsi: enable virtio 1.0Nikunj A Dadhania1-15/+24
Also add a device file for non-transitional pci device id: 0x1048 Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-11virtio-scsi: use virtio_fill desc apiNikunj A Dadhania1-19/+15
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-11virtio-scsi: use idx during initializationNikunj A Dadhania1-1/+1
Fix the initialization of the virtqueues. It was always initializing the first virtqueue, while the objective is to init all the virtqueues. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-net: enable virtio 1.0Nikunj A Dadhania2-33/+64
Also add a device file for non-transitional pci device id: 0x1041 Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-blk: enable virtio 1.0Nikunj A Dadhania1-19/+31
Also add a device file for non-transitional pci device id: 0x1042 Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: 1.0 helper to read 16/32/64 bit valueNikunj A Dadhania1-0/+48
To avoid cluttering the driver code with modern/legacy code introduce virtio_cpu_to_modern{16,32,64} and virtio_modern{16,32,64}_to_cpu in a separate header file virtio-internal.h. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Suggested-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: add and enable 1.0 device setupNikunj A Dadhania8-18/+151
Introduce parsing routines for virtio capabilities. This would also determine whether we need to function in legacy mode or virtio 1.0. Update routine to start using the base address from the updated legacy structure. With the removal for base address setting in the Forth code and most of the device setup happening in C code, code in virtio.fs is redundant. Remove virtio.fs and move the allocation of the virtio_device structure to the C code instead of the Forth code in individual files. Also, drop the packed attribute for the virtio_{device,cap} structure. The structure is not shared anymore. Drivers need to negotiate the 1.0 feature capability before starting to use 1.0. Disable it in all the drivers until 1.0 is enabled. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: 1.0 guest features negotiationNikunj A Dadhania2-0/+44
With virtio 1.0, there feature negotiation step needs to be completed before starting to notify the device. This includes following steps: * Read host supported features * Check if virtio 1.0 is supported * Set guest supported features * Read host features and compare with the guest features. * Write FEATURES_OK and check it back to confirm. Add virtio_get_status supporting routine. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: update features set/get register accessorNikunj A Dadhania3-7/+41
The new specification has a 64-bit feature register, change the signature and update the routine to handle them. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: make all virtio apis 1.0 awareNikunj A Dadhania2-33/+118
Convert the following routines: virtio_get_qsize virtio_vring_desc virtio_get_vring_avail virtio_get_vring_used virtio_set_status: also use it in device reset. virtio_queue_notify virtio_set_qaddr virtio_{get,read}_config virtio_fill_desc Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: add 64-bit virtio helpers for 1.0Nikunj A Dadhania1-0/+25
64-bit fields are to be treated as two 32-bit fields, with low 32 bit part followed by the high 32 bit part. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: add virtio 1.0 related struct and definesNikunj A Dadhania2-1/+46
Traditionally, struct virtio_device is shared between SLOF and C code. This still remains shared with the addition of virtio_cap structure as well. Now both virtio_device and virtio_cap structures are shared. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: get rid of type variable in virtio_deviceNikunj A Dadhania3-46/+21
virtio device structure carries a type variable indicating whether virtio is over PCI or VIO. While VIO is not there and no plan to introduce other transport, there is no purpose of having this variable around and checking for PCI. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-net: move setup-mac to the open routineNikunj A Dadhania3-9/+8
MAC reading should be done after the initialization of the device after the features negotiation. Adjust the open routine accordingly. There is no point in sending the mac address to the virtionet_open. Change the signature. Also read the mac address directly from the config space to remove the dependency of getting the mac address from the open routine. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-net: make net_hdr_size a variableNikunj A Dadhania1-9/+12
Size of the net_hdr_size is different in legacy and modern devices. This helps in conversion of the driver to 1.0. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-net: replace vq array with vq_{tx,rx}Nikunj A Dadhania1-29/+30
Using an array here is not necassary, simplifies the code for readability. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-net: use virtio_fill_descNikunj A Dadhania1-24/+11
Simplifies the driver code and is helpful for migration to virtio 1.0 enablement. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-{net,blk,scsi,9p}: use status variableNikunj A Dadhania4-28/+43
The virtio_set_status lines were getting too long because of OR'ing the status on the same line of the call. Moreover, going forward we need to add FEATURES_OK status as well. The state progress is quite straight forward, so use status variable instead. Code looks cleaner and can easily make out the change in the state. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-blk: add helpers for filling descriptorsNikunj A Dadhania3-15/+44
Enable virtio_fill_desc/fill_blk_hdr with legacy and modern mode for further use Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-{blk,9p}: enable resetting the deviceNikunj A Dadhania2-9/+2
With the lack of the virtio_queue_init_vq routine, driver like virtio-blk and virtio-9p had disabled device reset in the initialization code. This helper will fix that problem, as the initialization can be done after the device reset. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: introduce helper for initializing virt queueNikunj A Dadhania6-51/+53
The routine takes care to allocate and set the queue address in the device. Add these calls in virtio-net, virtio-blk and virtio-9p. With the lack of this routine, devices like virtio-blk and virtio-9p did not do a device reset in the driver initialization code. This helper will fix that problem Change the signature of virtio_set_qaddr, accepting queue address as unsigned long argument. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio: fix code style/design issues.Nikunj A Dadhania5-123/+117
The patch does not make any functional changes. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-net: fix gcc warnings (-Wextra)Nikunj A Dadhania4-6/+6
Change rx_size type which originally should have been uint32_t. This also requires a change in the function prototype. Also change the return type of virtio_9p_load() to silence another gcc warning Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2016-02-08virtio-blk: fix gcc warnings (-Wextra)Nikunj A Dadhania2-2/+2
Change the prototype of virtioblk_read as blocknum wont be negative Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2015-03-23Include make.rules in the library MakefilesThomas Huth1-0/+2
Make sure to include make.rules from the Makefiles in the common lib folder to get some more sane console output during the build process. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2015-03-13virtio: Fix vring allocationAlexey Kardashevskiy1-2/+4
The value returned by virtio_vring_size() is used to allocate memory for vring. The used descriptor list (array of vring_used_elem) is counted by the header - vring_used struct - is not. This fixes virtio_vring_size() to return the correct size. At the moment rings are quite small (256) and allocated with 4096 alignment, this is why we have not been having issues with this so far. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> --- Changes: v2: * remove magic numbers
2014-04-25virtio-blk: support variable block sizeNikunj A Dadhania5-15/+49
Current code only works with 512 bytes read. Moreover, Qemu ignores the guest set features request. In the set features request SLOF indicates to qemu that it is not support VIRTIO_BLK_F_BLK_SIZE feature. Code in qemu suggests that virtio-blk is not implementing set_guest_feature. Tested-by: Bharata B Rao <bharata@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
2014-02-04virtio-9p: disable unused structureNikunj A Dadhania1-1/+2
In file included from ./board.code:140:0, from /home/nikunj/work/power/code/slof/SLOF/slof/paflof.c:106: /home/nikunj/work/power/code/slof/SLOF/slof/paflof.c: In function ‘engine’: /home/nikunj/work/power/code/slof/SLOF/lib/libvirtio/virtio-9p.h:23:3: warning: typedef ‘virtio_9p_config_t’ locally defined but not used [-Wunused-local-typedefs] } virtio_9p_config_t; Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
2013-11-18virtio: timeout after 5secNikunj A Dadhania3-12/+20
Remove adhoc timer and put 5sec timeout. On a busy host, code hits this. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
2013-11-17Increase virtio-net receive queue sizeAvik Sil1-1/+1
Since SLOF is poll based, in a high network traffic zone desired packet might be missed during receiving. Hence increase the receive queue size. Signed-off-by: Avik Sil <aviksil@linux.vnet.ibm.com>
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