[v3,3/7] dma/odm: add dev init and fini

Message ID 20240419064319.149-4-anoobj@marvell.com (mailing list archive)
State Changes Requested
Delegated to: Jerin Jacob
Headers
Series Add ODM DMA device |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Anoob Joseph April 19, 2024, 6:43 a.m. UTC
  From: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>

Add ODM device init and fini.

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>
Signed-off-by: Vidya Sagar Velumuri <vvelumuri@marvell.com>
---
 drivers/dma/odm/meson.build  |  2 +-
 drivers/dma/odm/odm.c        | 97 ++++++++++++++++++++++++++++++++++++
 drivers/dma/odm/odm.h        | 10 ++++
 drivers/dma/odm/odm_dmadev.c | 13 +++++
 4 files changed, 121 insertions(+), 1 deletion(-)
 create mode 100644 drivers/dma/odm/odm.c
  

Patch

diff --git a/drivers/dma/odm/meson.build b/drivers/dma/odm/meson.build
index 227b10c890..d597762d37 100644
--- a/drivers/dma/odm/meson.build
+++ b/drivers/dma/odm/meson.build
@@ -9,6 +9,6 @@  endif
 
 deps += ['bus_pci', 'dmadev', 'eal', 'mempool', 'pci']
 
-sources = files('odm_dmadev.c')
+sources = files('odm_dmadev.c', 'odm.c')
 
 pmd_supports_disable_iova_as_pa = true
diff --git a/drivers/dma/odm/odm.c b/drivers/dma/odm/odm.c
new file mode 100644
index 0000000000..c0963da451
--- /dev/null
+++ b/drivers/dma/odm/odm.c
@@ -0,0 +1,97 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2024 Marvell.
+ */
+
+#include <stdint.h>
+
+#include <bus_pci_driver.h>
+
+#include <rte_io.h>
+
+#include "odm.h"
+#include "odm_priv.h"
+
+static void
+odm_vchan_resc_free(struct odm_dev *odm, int qno)
+{
+	RTE_SET_USED(odm);
+	RTE_SET_USED(qno);
+}
+
+static int
+send_mbox_to_pf(struct odm_dev *odm, union odm_mbox_msg *msg, union odm_mbox_msg *rsp)
+{
+	int retry_cnt = ODM_MBOX_RETRY_CNT;
+	union odm_mbox_msg pf_msg;
+
+	msg->d.err = ODM_MBOX_ERR_CODE_MAX;
+	odm_write64(msg->u[0], odm->rbase + ODM_MBOX_VF_PF_DATA(0));
+	odm_write64(msg->u[1], odm->rbase + ODM_MBOX_VF_PF_DATA(1));
+
+	pf_msg.u[0] = 0;
+	pf_msg.u[1] = 0;
+	pf_msg.u[0] = odm_read64(odm->rbase + ODM_MBOX_VF_PF_DATA(0));
+
+	while (pf_msg.d.rsp == 0 && retry_cnt > 0) {
+		pf_msg.u[0] = odm_read64(odm->rbase + ODM_MBOX_VF_PF_DATA(0));
+		--retry_cnt;
+	}
+
+	if (retry_cnt <= 0)
+		return -EBADE;
+
+	pf_msg.u[1] = odm_read64(odm->rbase + ODM_MBOX_VF_PF_DATA(1));
+
+	if (rsp) {
+		rsp->u[0] = pf_msg.u[0];
+		rsp->u[1] = pf_msg.u[1];
+	}
+
+	if (pf_msg.d.rsp == msg->d.err && pf_msg.d.err != 0)
+		return -EBADE;
+
+	return 0;
+}
+
+int
+odm_dev_init(struct odm_dev *odm)
+{
+	struct rte_pci_device *pci_dev = odm->pci_dev;
+	union odm_mbox_msg mbox_msg;
+	uint16_t vfid;
+	int rc;
+
+	odm->rbase = pci_dev->mem_resource[0].addr;
+	vfid = ((pci_dev->addr.devid & 0x1F) << 3) | (pci_dev->addr.function & 0x7);
+	vfid -= 1;
+	odm->vfid = vfid;
+	odm->num_qs = 0;
+
+	mbox_msg.u[0] = 0;
+	mbox_msg.u[1] = 0;
+	mbox_msg.q.vfid = odm->vfid;
+	mbox_msg.q.cmd = ODM_DEV_INIT;
+	rc = send_mbox_to_pf(odm, &mbox_msg, &mbox_msg);
+	if (!rc)
+		odm->max_qs = 1 << (4 - mbox_msg.d.nvfs);
+
+	return rc;
+}
+
+int
+odm_dev_fini(struct odm_dev *odm)
+{
+	union odm_mbox_msg mbox_msg;
+	int qno, rc = 0;
+
+	mbox_msg.u[0] = 0;
+	mbox_msg.u[1] = 0;
+	mbox_msg.q.vfid = odm->vfid;
+	mbox_msg.q.cmd = ODM_DEV_CLOSE;
+	rc = send_mbox_to_pf(odm, &mbox_msg, &mbox_msg);
+
+	for (qno = 0; qno < odm->num_qs; qno++)
+		odm_vchan_resc_free(odm, qno);
+
+	return rc;
+}
diff --git a/drivers/dma/odm/odm.h b/drivers/dma/odm/odm.h
index 7564ffbed4..9fd3e30ad8 100644
--- a/drivers/dma/odm/odm.h
+++ b/drivers/dma/odm/odm.h
@@ -5,6 +5,10 @@ 
 #ifndef _ODM_H_
 #define _ODM_H_
 
+#include <stdint.h>
+
+#include <rte_common.h>
+#include <rte_compat.h>
 #include <rte_log.h>
 
 extern int odm_logtype;
@@ -50,6 +54,9 @@  extern int odm_logtype;
 
 #define ODM_MAX_QUEUES_PER_DEV 16
 
+#define odm_read64(addr)       rte_read64_relaxed((volatile void *)(addr))
+#define odm_write64(val, addr) rte_write64_relaxed((val), (volatile void *)(addr))
+
 #define odm_err(...)                                                                               \
 	rte_log(RTE_LOG_ERR, odm_logtype,                                                          \
 		RTE_FMT("%s(): %u" RTE_FMT_HEAD(__VA_ARGS__, ), __func__, __LINE__,                \
@@ -142,4 +149,7 @@  struct __rte_cache_aligned odm_dev {
 	uint8_t num_qs;
 };
 
+int odm_dev_init(struct odm_dev *odm);
+int odm_dev_fini(struct odm_dev *odm);
+
 #endif /* _ODM_H_ */
diff --git a/drivers/dma/odm/odm_dmadev.c b/drivers/dma/odm/odm_dmadev.c
index cc3342cf7b..bef335c10c 100644
--- a/drivers/dma/odm/odm_dmadev.c
+++ b/drivers/dma/odm/odm_dmadev.c
@@ -23,6 +23,7 @@  odm_dmadev_probe(struct rte_pci_driver *pci_drv __rte_unused, struct rte_pci_dev
 	char name[RTE_DEV_NAME_MAX_LEN];
 	struct odm_dev *odm = NULL;
 	struct rte_dma_dev *dmadev;
+	int rc;
 
 	if (!pci_dev->mem_resource[0].addr)
 		return -ENODEV;
@@ -37,8 +38,20 @@  odm_dmadev_probe(struct rte_pci_driver *pci_drv __rte_unused, struct rte_pci_dev
 	}
 
 	odm_info("DMA device %s probed", name);
+	odm = dmadev->data->dev_private;
+
+	odm->pci_dev = pci_dev;
+
+	rc = odm_dev_init(odm);
+	if (rc < 0)
+		goto dma_pmd_release;
 
 	return 0;
+
+dma_pmd_release:
+	rte_dma_pmd_release(name);
+
+	return rc;
 }
 
 static int