Re: [dpdk-dev] [PATCH v1] net/ice: use rx/tx DMA iova instead of phys_addr which is deprecated

[Ye Xiaolong <xiaolong.ye@intel.com>]

Hi, Haiyue

On 07/12, Haiyue Wang wrote:
>The phys_addr concept is deprecated in rte_memzone, change it to access
>iova member, and use the type 'rte_iova_t'.
>

It seems this issue also exists in other PMDs, like ixgbe, i40e, iavf..., do
you have plan to fix them all?

For the patch, Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>

Thanks,
Xiaolong

>Also rename the rx/tx_ring_phys_addr definitions to rx/tx_ring_dma that
>matches the IOVA concept design.
>
>Fixes: 50370662b727 ("net/ice: support device and queue ops")
>Cc: stable@dpdk.org
>
>Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
>---
> drivers/net/ice/ice_rxtx.c | 8 ++++----
> drivers/net/ice/ice_rxtx.h | 4 ++--
> 2 files changed, 6 insertions(+), 6 deletions(-)
>
>diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
>index 035ed84..3353f23 100644
>--- a/drivers/net/ice/ice_rxtx.c
>+++ b/drivers/net/ice/ice_rxtx.c
>@@ -70,7 +70,7 @@ ice_program_hw_rx_queue(struct ice_rx_queue *rxq)
> 
> 	memset(&rx_ctx, 0, sizeof(rx_ctx));
> 
>-	rx_ctx.base = rxq->rx_ring_phys_addr / ICE_QUEUE_BASE_ADDR_UNIT;
>+	rx_ctx.base = rxq->rx_ring_dma / ICE_QUEUE_BASE_ADDR_UNIT;
> 	rx_ctx.qlen = rxq->nb_rx_desc;
> 	rx_ctx.dbuf = rxq->rx_buf_len >> ICE_RLAN_CTX_DBUF_S;
> 	rx_ctx.hbuf = rxq->rx_hdr_len >> ICE_RLAN_CTX_HBUF_S;
>@@ -442,7 +442,7 @@ ice_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
> 	txq_elem.num_txqs = 1;
> 	txq_elem.txqs[0].txq_id = rte_cpu_to_le_16(txq->reg_idx);
> 
>-	tx_ctx.base = txq->tx_ring_phys_addr / ICE_QUEUE_BASE_ADDR_UNIT;
>+	tx_ctx.base = txq->tx_ring_dma / ICE_QUEUE_BASE_ADDR_UNIT;
> 	tx_ctx.qlen = txq->nb_tx_desc;
> 	tx_ctx.pf_num = hw->pf_id;
> 	tx_ctx.vmvf_type = ICE_TLAN_CTX_VMVF_TYPE_PF;
>@@ -663,7 +663,7 @@ ice_rx_queue_setup(struct rte_eth_dev *dev,
> 	/* Zero all the descriptors in the ring. */
> 	memset(rz->addr, 0, ring_size);
> 
>-	rxq->rx_ring_phys_addr = rz->phys_addr;
>+	rxq->rx_ring_dma = rz->iova;
> 	rxq->rx_ring = (union ice_rx_desc *)rz->addr;
> 
> #ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
>@@ -881,7 +881,7 @@ ice_tx_queue_setup(struct rte_eth_dev *dev,
> 	txq->vsi = vsi;
> 	txq->tx_deferred_start = tx_conf->tx_deferred_start;
> 
>-	txq->tx_ring_phys_addr = tz->phys_addr;
>+	txq->tx_ring_dma = tz->iova;
> 	txq->tx_ring = (struct ice_tx_desc *)tz->addr;
> 
> 	/* Allocate software ring */
>diff --git a/drivers/net/ice/ice_rxtx.h b/drivers/net/ice/ice_rxtx.h
>index 9040e3f..e921411 100644
>--- a/drivers/net/ice/ice_rxtx.h
>+++ b/drivers/net/ice/ice_rxtx.h
>@@ -46,7 +46,7 @@ struct ice_rx_entry {
> struct ice_rx_queue {
> 	struct rte_mempool *mp; /* mbuf pool to populate RX ring */
> 	volatile union ice_rx_desc *rx_ring;/* RX ring virtual address */
>-	uint64_t rx_ring_phys_addr; /* RX ring DMA address */
>+	rte_iova_t rx_ring_dma; /* RX ring DMA address */
> 	struct ice_rx_entry *sw_ring; /* address of RX soft ring */
> 	uint16_t nb_rx_desc; /* number of RX descriptors */
> 	uint16_t rx_free_thresh; /* max free RX desc to hold */
>@@ -87,7 +87,7 @@ struct ice_tx_entry {
> 
> struct ice_tx_queue {
> 	uint16_t nb_tx_desc; /* number of TX descriptors */
>-	uint64_t tx_ring_phys_addr; /* TX ring DMA address */
>+	rte_iova_t tx_ring_dma; /* TX ring DMA address */
> 	volatile struct ice_tx_desc *tx_ring; /* TX ring virtual address */
> 	struct ice_tx_entry *sw_ring; /* virtual address of SW ring */
> 	uint16_t tx_tail; /* current value of tail register */
>-- 
>2.7.4
>