[PATCH v5 1/3] common/cnxk: dma result to an offset of the event

[Amit Prakash Shukla <amitprakashs@marvell.com>]

Adds support to configure writing result to offset of the DMA
response event.

Signed-off-by: Amit Prakash Shukla <amitprakashs@marvell.com>
---
v5:
- Fixed checkpatch warning.

v4:
- Fixed compilation error.
- Updated release notes.

v3:
- Rebased and fixed compilation error.

v2:
- Added dual workslot enqueue support.
- Fixed compilation error.

 drivers/common/cnxk/roc_dpi.c       |  6 +++++-
 drivers/common/cnxk/roc_dpi.h       |  2 +-
 drivers/common/cnxk/roc_dpi_priv.h  |  4 ++++
 drivers/common/cnxk/roc_idev.c      | 20 ++++++++++++++++++++
 drivers/common/cnxk/roc_idev_priv.h |  3 +++
 drivers/dma/cnxk/cnxk_dmadev.c      |  2 +-
 6 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/drivers/common/cnxk/roc_dpi.c b/drivers/common/cnxk/roc_dpi.c
index c241168294..1ee777d779 100644
--- a/drivers/common/cnxk/roc_dpi.c
+++ b/drivers/common/cnxk/roc_dpi.c
@@ -83,6 +83,9 @@ roc_dpi_configure(struct roc_dpi *roc_dpi, uint32_t chunk_sz, uint64_t aura, uin
 	mbox_msg.s.aura = aura;
 	mbox_msg.s.sso_pf_func = idev_sso_pffunc_get();
 	mbox_msg.s.npa_pf_func = idev_npa_pffunc_get();
+	mbox_msg.s.wqecsoff = idev_dma_cs_offset_get();
+	if (mbox_msg.s.wqecsoff)
+		mbox_msg.s.wqecs = 1;
 
 	rc = send_msg_to_pf(&pci_dev->addr, (const char *)&mbox_msg,
 			    sizeof(dpi_mbox_msg_t));
@@ -94,7 +97,7 @@ roc_dpi_configure(struct roc_dpi *roc_dpi, uint32_t chunk_sz, uint64_t aura, uin
 }
 
 int
-roc_dpi_dev_init(struct roc_dpi *roc_dpi)
+roc_dpi_dev_init(struct roc_dpi *roc_dpi, uint8_t offset)
 {
 	struct plt_pci_device *pci_dev = roc_dpi->pci_dev;
 	uint16_t vfid;
@@ -103,6 +106,7 @@ roc_dpi_dev_init(struct roc_dpi *roc_dpi)
 	vfid = ((pci_dev->addr.devid & 0x1F) << 3) | (pci_dev->addr.function & 0x7);
 	vfid -= 1;
 	roc_dpi->vfid = vfid;
+	idev_dma_cs_offset_set(offset);
 
 	return 0;
 }
diff --git a/drivers/common/cnxk/roc_dpi.h b/drivers/common/cnxk/roc_dpi.h
index 4ebde5b8a6..978e2badb2 100644
--- a/drivers/common/cnxk/roc_dpi.h
+++ b/drivers/common/cnxk/roc_dpi.h
@@ -11,7 +11,7 @@ struct roc_dpi {
 	uint16_t vfid;
 } __plt_cache_aligned;
 
-int __roc_api roc_dpi_dev_init(struct roc_dpi *roc_dpi);
+int __roc_api roc_dpi_dev_init(struct roc_dpi *roc_dpi, uint8_t offset);
 int __roc_api roc_dpi_dev_fini(struct roc_dpi *roc_dpi);
 
 int __roc_api roc_dpi_configure(struct roc_dpi *dpi, uint32_t chunk_sz, uint64_t aura,
diff --git a/drivers/common/cnxk/roc_dpi_priv.h b/drivers/common/cnxk/roc_dpi_priv.h
index 518a3e7351..52962c8bc0 100644
--- a/drivers/common/cnxk/roc_dpi_priv.h
+++ b/drivers/common/cnxk/roc_dpi_priv.h
@@ -31,6 +31,10 @@ typedef union dpi_mbox_msg_t {
 		uint64_t sso_pf_func : 16;
 		/* NPA PF function */
 		uint64_t npa_pf_func : 16;
+		/* WQE queue DMA completion status enable */
+		uint64_t wqecs : 1;
+		/* WQE queue DMA completion status offset */
+		uint64_t wqecsoff : 8;
 	} s;
 } dpi_mbox_msg_t;
 
diff --git a/drivers/common/cnxk/roc_idev.c b/drivers/common/cnxk/roc_idev.c
index 48df3518b0..d0307c666c 100644
--- a/drivers/common/cnxk/roc_idev.c
+++ b/drivers/common/cnxk/roc_idev.c
@@ -301,6 +301,26 @@ idev_sso_set(struct roc_sso *sso)
 		__atomic_store_n(&idev->sso, sso, __ATOMIC_RELEASE);
 }
 
+void
+idev_dma_cs_offset_set(uint8_t offset)
+{
+	struct idev_cfg *idev = idev_get_cfg();
+
+	if (idev != NULL)
+		idev->dma_cs_offset = offset;
+}
+
+uint8_t
+idev_dma_cs_offset_get(void)
+{
+	struct idev_cfg *idev = idev_get_cfg();
+
+	if (idev != NULL)
+		return idev->dma_cs_offset;
+
+	return 0;
+}
+
 uint64_t
 roc_idev_nix_inl_meta_aura_get(void)
 {
diff --git a/drivers/common/cnxk/roc_idev_priv.h b/drivers/common/cnxk/roc_idev_priv.h
index 8dc1cb25bf..6628b18152 100644
--- a/drivers/common/cnxk/roc_idev_priv.h
+++ b/drivers/common/cnxk/roc_idev_priv.h
@@ -43,6 +43,7 @@ struct idev_cfg {
 	struct idev_nix_inl_rx_inj_cfg inl_rx_inj_cfg;
 	plt_spinlock_t nix_inl_dev_lock;
 	plt_spinlock_t npa_dev_lock;
+	uint8_t dma_cs_offset;
 };
 
 /* Generic */
@@ -61,6 +62,8 @@ void idev_sso_pffunc_set(uint16_t sso_pf_func);
 uint16_t idev_sso_pffunc_get(void);
 struct roc_sso *idev_sso_get(void);
 void idev_sso_set(struct roc_sso *sso);
+void idev_dma_cs_offset_set(uint8_t offset);
+uint8_t idev_dma_cs_offset_get(void);
 
 /* idev lmt */
 uint16_t idev_lmt_pffunc_get(void);
diff --git a/drivers/dma/cnxk/cnxk_dmadev.c b/drivers/dma/cnxk/cnxk_dmadev.c
index 1e7f49792c..48ab09cc38 100644
--- a/drivers/dma/cnxk/cnxk_dmadev.c
+++ b/drivers/dma/cnxk/cnxk_dmadev.c
@@ -592,7 +592,7 @@ cnxk_dmadev_probe(struct rte_pci_driver *pci_drv __rte_unused, struct rte_pci_de
 	rdpi = &dpivf->rdpi;
 
 	rdpi->pci_dev = pci_dev;
-	rc = roc_dpi_dev_init(rdpi);
+	rc = roc_dpi_dev_init(rdpi, 0);
 	if (rc < 0)
 		goto err_out_free;
 
-- 
2.34.1