[dpdk-dev] [PATCH 22/40] net/virtio: remove last PCI refs in non-PCI code

Maxime Coquelin maxime.coquelin at redhat.com
Thu Jan 14 09:46:00 CET 2021
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On 12/30/20 4:25 AM, Xia, Chenbo wrote:
> Hi Maxime,
> 
>> -----Original Message-----
>> From: Maxime Coquelin <maxime.coquelin at redhat.com>
>> Sent: Monday, December 21, 2020 5:14 AM
>> To: dev at dpdk.org; Xia, Chenbo <chenbo.xia at intel.com>; olivier.matz at 6wind.com;
>> amorenoz at redhat.com; david.marchand at redhat.com
>> Cc: Maxime Coquelin <maxime.coquelin at redhat.com>
>> Subject: [PATCH 22/40] net/virtio: remove last PCI refs in non-PCI code
>>
>> This patch finalizes the bus isolation part of this
>> refactoring.
>>
>> Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
> 
> I think this one is also the remove-dependency part? Because you said first 21 patches
> are the first part :P

Yes, that's what I mean by bus isolation.

> I think the first part is very great clean-up. It does make our code cleaner!
>
> For this patch:
> 
> Reviewed-by: Chenbo Xia <chenbo.xia at intel.com>


Thanks, your review is much apopreciated.

Maxime

> 
>> ---
>>  drivers/net/virtio/virtio_ethdev.c          | 21 +++++++++------------
>>  drivers/net/virtio/virtio_rxtx.c            | 18 +++++++++---------
>>  drivers/net/virtio/virtio_rxtx_packed_avx.c |  2 +-
>>  drivers/net/virtio/virtio_user/vhost.h      |  4 +++-
>>  drivers/net/virtio/virtqueue.c              |  2 +-
>>  drivers/net/virtio/virtqueue.h              |  6 +++---
>>  6 files changed, 26 insertions(+), 27 deletions(-)
>>
>> diff --git a/drivers/net/virtio/virtio_ethdev.c
>> b/drivers/net/virtio/virtio_ethdev.c
>> index 1ca8715832..96871b7b70 100644
>> --- a/drivers/net/virtio/virtio_ethdev.c
>> +++ b/drivers/net/virtio/virtio_ethdev.c
>> @@ -9,14 +9,11 @@
>>  #include <unistd.h>
>>
>>  #include <rte_ethdev_driver.h>
>> -#include <rte_ethdev_pci.h>
>>  #include <rte_memcpy.h>
>>  #include <rte_string_fns.h>
>>  #include <rte_memzone.h>
>>  #include <rte_malloc.h>
>>  #include <rte_branch_prediction.h>
>> -#include <rte_pci.h>
>> -#include <rte_bus_pci.h>
>>  #include <rte_ether.h>
>>  #include <rte_ip.h>
>>  #include <rte_arp.h>
>> @@ -32,7 +29,7 @@
>>  #include <rte_kvargs.h>
>>
>>  #include "virtio_ethdev.h"
>> -#include "virtio_pci.h"
>> +#include "virtio.h"
>>  #include "virtio_logs.h"
>>  #include "virtqueue.h"
>>  #include "virtio_rxtx.h"
>> @@ -422,7 +419,7 @@ virtio_init_vring(struct virtqueue *vq)
>>  }
>>
>>  static int
>> -virtio_init_queue(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx)
>> +virtio_init_queue(struct rte_eth_dev *dev, uint16_t queue_idx)
>>  {
>>  	char vq_name[VIRTQUEUE_MAX_NAME_SZ];
>>  	char vq_hdr_name[VIRTQUEUE_MAX_NAME_SZ];
>> @@ -435,18 +432,18 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t
>> vtpci_queue_idx)
>>  	struct virtqueue *vq;
>>  	size_t sz_hdr_mz = 0;
>>  	void *sw_ring = NULL;
>> -	int queue_type = virtio_get_queue_type(hw, vtpci_queue_idx);
>> +	int queue_type = virtio_get_queue_type(hw, queue_idx);
>>  	int ret;
>>  	int numa_node = dev->device->numa_node;
>>
>>  	PMD_INIT_LOG(INFO, "setting up queue: %u on NUMA node %d",
>> -			vtpci_queue_idx, numa_node);
>> +			queue_idx, numa_node);
>>
>>  	/*
>>  	 * Read the virtqueue size from the Queue Size field
>>  	 * Always power of 2 and if 0 virtqueue does not exist
>>  	 */
>> -	vq_size = VIRTIO_OPS(hw)->get_queue_num(hw, vtpci_queue_idx);
>> +	vq_size = VIRTIO_OPS(hw)->get_queue_num(hw, queue_idx);
>>  	PMD_INIT_LOG(DEBUG, "vq_size: %u", vq_size);
>>  	if (vq_size == 0) {
>>  		PMD_INIT_LOG(ERR, "virtqueue does not exist");
>> @@ -459,7 +456,7 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t
>> vtpci_queue_idx)
>>  	}
>>
>>  	snprintf(vq_name, sizeof(vq_name), "port%d_vq%d",
>> -		 dev->data->port_id, vtpci_queue_idx);
>> +		 dev->data->port_id, queue_idx);
>>
>>  	size = RTE_ALIGN_CEIL(sizeof(*vq) +
>>  				vq_size * sizeof(struct vq_desc_extra),
>> @@ -481,10 +478,10 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t
>> vtpci_queue_idx)
>>  		PMD_INIT_LOG(ERR, "can not allocate vq");
>>  		return -ENOMEM;
>>  	}
>> -	hw->vqs[vtpci_queue_idx] = vq;
>> +	hw->vqs[queue_idx] = vq;
>>
>>  	vq->hw = hw;
>> -	vq->vq_queue_index = vtpci_queue_idx;
>> +	vq->vq_queue_index = queue_idx;
>>  	vq->vq_nentries = vq_size;
>>  	if (virtio_with_packed_queue(hw)) {
>>  		vq->vq_packed.used_wrap_counter = 1;
>> @@ -527,7 +524,7 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t
>> vtpci_queue_idx)
>>
>>  	if (sz_hdr_mz) {
>>  		snprintf(vq_hdr_name, sizeof(vq_hdr_name), "port%d_vq%d_hdr",
>> -			 dev->data->port_id, vtpci_queue_idx);
>> +			 dev->data->port_id, queue_idx);
>>  		hdr_mz = rte_memzone_reserve_aligned(vq_hdr_name, sz_hdr_mz,
>>  				numa_node, RTE_MEMZONE_IOVA_CONTIG,
>>  				RTE_CACHE_LINE_SIZE);
>> diff --git a/drivers/net/virtio/virtio_rxtx.c
>> b/drivers/net/virtio/virtio_rxtx.c
>> index 10989118b0..aca6eb9cd0 100644
>> --- a/drivers/net/virtio/virtio_rxtx.c
>> +++ b/drivers/net/virtio/virtio_rxtx.c
>> @@ -27,7 +27,7 @@
>>
>>  #include "virtio_logs.h"
>>  #include "virtio_ethdev.h"
>> -#include "virtio_pci.h"
>> +#include "virtio.h"
>>  #include "virtqueue.h"
>>  #include "virtio_rxtx.h"
>>  #include "virtio_rxtx_simple.h"
>> @@ -628,9 +628,9 @@ virtio_dev_rx_queue_setup(struct rte_eth_dev *dev,
>>  			const struct rte_eth_rxconf *rx_conf,
>>  			struct rte_mempool *mp)
>>  {
>> -	uint16_t vtpci_queue_idx = 2 * queue_idx + VTNET_SQ_RQ_QUEUE_IDX;
>> +	uint16_t vq_idx = 2 * queue_idx + VTNET_SQ_RQ_QUEUE_IDX;
>>  	struct virtio_hw *hw = dev->data->dev_private;
>> -	struct virtqueue *vq = hw->vqs[vtpci_queue_idx];
>> +	struct virtqueue *vq = hw->vqs[vq_idx];
>>  	struct virtnet_rx *rxvq;
>>  	uint16_t rx_free_thresh;
>>
>> @@ -678,9 +678,9 @@ virtio_dev_rx_queue_setup(struct rte_eth_dev *dev,
>>  int
>>  virtio_dev_rx_queue_setup_finish(struct rte_eth_dev *dev, uint16_t queue_idx)
>>  {
>> -	uint16_t vtpci_queue_idx = 2 * queue_idx + VTNET_SQ_RQ_QUEUE_IDX;
>> +	uint16_t vq_idx = 2 * queue_idx + VTNET_SQ_RQ_QUEUE_IDX;
>>  	struct virtio_hw *hw = dev->data->dev_private;
>> -	struct virtqueue *vq = hw->vqs[vtpci_queue_idx];
>> +	struct virtqueue *vq = hw->vqs[vq_idx];
>>  	struct virtnet_rx *rxvq = &vq->rxq;
>>  	struct rte_mbuf *m;
>>  	uint16_t desc_idx;
>> @@ -779,9 +779,9 @@ virtio_dev_tx_queue_setup(struct rte_eth_dev *dev,
>>  			unsigned int socket_id __rte_unused,
>>  			const struct rte_eth_txconf *tx_conf)
>>  {
>> -	uint8_t vtpci_queue_idx = 2 * queue_idx + VTNET_SQ_TQ_QUEUE_IDX;
>> +	uint8_t vq_idx = 2 * queue_idx + VTNET_SQ_TQ_QUEUE_IDX;
>>  	struct virtio_hw *hw = dev->data->dev_private;
>> -	struct virtqueue *vq = hw->vqs[vtpci_queue_idx];
>> +	struct virtqueue *vq = hw->vqs[vq_idx];
>>  	struct virtnet_tx *txvq;
>>  	uint16_t tx_free_thresh;
>>
>> @@ -823,9 +823,9 @@ int
>>  virtio_dev_tx_queue_setup_finish(struct rte_eth_dev *dev,
>>  				uint16_t queue_idx)
>>  {
>> -	uint8_t vtpci_queue_idx = 2 * queue_idx + VTNET_SQ_TQ_QUEUE_IDX;
>> +	uint8_t vq_idx = 2 * queue_idx + VTNET_SQ_TQ_QUEUE_IDX;
>>  	struct virtio_hw *hw = dev->data->dev_private;
>> -	struct virtqueue *vq = hw->vqs[vtpci_queue_idx];
>> +	struct virtqueue *vq = hw->vqs[vq_idx];
>>
>>  	PMD_INIT_FUNC_TRACE();
>>
>> diff --git a/drivers/net/virtio/virtio_rxtx_packed_avx.c
>> b/drivers/net/virtio/virtio_rxtx_packed_avx.c
>> index c272766a9f..a3dcc01a43 100644
>> --- a/drivers/net/virtio/virtio_rxtx_packed_avx.c
>> +++ b/drivers/net/virtio/virtio_rxtx_packed_avx.c
>> @@ -12,7 +12,7 @@
>>
>>  #include "virtio_logs.h"
>>  #include "virtio_ethdev.h"
>> -#include "virtio_pci.h"
>> +#include "virtio.h"
>>  #include "virtqueue.h"
>>
>>  #define BYTE_SIZE 8
>> diff --git a/drivers/net/virtio/virtio_user/vhost.h
>> b/drivers/net/virtio/virtio_user/vhost.h
>> index 210a3704e7..9d2a8505b3 100644
>> --- a/drivers/net/virtio/virtio_user/vhost.h
>> +++ b/drivers/net/virtio/virtio_user/vhost.h
>> @@ -9,7 +9,9 @@
>>  #include <linux/types.h>
>>  #include <linux/ioctl.h>
>>
>> -#include "../virtio_pci.h"
>> +#include <rte_errno.h>
>> +
>> +#include "../virtio.h"
>>  #include "../virtio_logs.h"
>>  #include "../virtqueue.h"
>>
>> diff --git a/drivers/net/virtio/virtqueue.c b/drivers/net/virtio/virtqueue.c
>> index 59a2cb6599..1f9af3c31b 100644
>> --- a/drivers/net/virtio/virtqueue.c
>> +++ b/drivers/net/virtio/virtqueue.c
>> @@ -7,7 +7,7 @@
>>
>>  #include "virtqueue.h"
>>  #include "virtio_logs.h"
>> -#include "virtio_pci.h"
>> +#include "virtio.h"
>>  #include "virtio_rxtx_simple.h"
>>
>>  /*
>> diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h
>> index 6c1df6f8e5..9274c48080 100644
>> --- a/drivers/net/virtio/virtqueue.h
>> +++ b/drivers/net/virtio/virtqueue.h
>> @@ -449,11 +449,11 @@ virtqueue_full(const struct virtqueue *vq)
>>  }
>>
>>  static inline int
>> -virtio_get_queue_type(struct virtio_hw *hw, uint16_t vtpci_queue_idx)
>> +virtio_get_queue_type(struct virtio_hw *hw, uint16_t vq_idx)
>>  {
>> -	if (vtpci_queue_idx == hw->max_queue_pairs * 2)
>> +	if (vq_idx == hw->max_queue_pairs * 2)
>>  		return VTNET_CQ;
>> -	else if (vtpci_queue_idx % 2 == 0)
>> +	else if (vq_idx % 2 == 0)
>>  		return VTNET_RQ;
>>  	else
>>  		return VTNET_TQ;
>> --
>> 2.29.2
>
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