From: Jerin Jacob <jer...@marvell.com>
This patch adds mailbox init and fini support.
Each RVU device has a dedicated 64KB mailbox region
shared with its peer for communication. RVU AF has
a separate mailbox region shared with each of RVU PFs
and an RVU PF has a separate region shared with
each of it's VF.
Signed-off-by: Jerin Jacob <jer...@marvell.com>
Signed-off-by: Vamsi Attunuru <vattun...@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpu...@marvell.com>
---
drivers/common/octeontx2/otx2_mbox.c | 133 +++++++++++++++++++++++++++
drivers/common/octeontx2/otx2_mbox.h | 5 +
2 files changed, 138 insertions(+)
diff --git a/drivers/common/octeontx2/otx2_mbox.c
b/drivers/common/octeontx2/otx2_mbox.c
index c9cdbdbbc..cb03f6503 100644
--- a/drivers/common/octeontx2/otx2_mbox.c
+++ b/drivers/common/octeontx2/otx2_mbox.c
@@ -2,4 +2,137 @@
* Copyright(C) 2019 Marvell International Ltd.
*/
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <rte_atomic.h>
+#include <rte_cycles.h>
+
#include "otx2_mbox.h"
+
+#define RVU_AF_AFPF_MBOX0 (0x02000)
+#define RVU_AF_AFPF_MBOX1 (0x02008)
+
+#define RVU_PF_PFAF_MBOX0 (0xC00)
+#define RVU_PF_PFAF_MBOX1 (0xC08)
+
+#define RVU_PF_VFX_PFVF_MBOX0 (0x0000)
+#define RVU_PF_VFX_PFVF_MBOX1 (0x0008)
+
+#define RVU_VF_VFPF_MBOX0 (0x0000)
+#define RVU_VF_VFPF_MBOX1 (0x0008)
+
+void
+otx2_mbox_fini(struct otx2_mbox *mbox)
+{
+ mbox->reg_base = 0;
+ mbox->hwbase = 0;
+ free(mbox->dev);
+ mbox->dev = NULL;
+}
+
+void
+otx2_mbox_reset(struct otx2_mbox *mbox, int devid)
+{
+ struct otx2_mbox_dev *mdev = &mbox->dev[devid];
+ struct mbox_hdr *tx_hdr =
+ (struct mbox_hdr *)((uintptr_t)mdev->mbase + mbox->tx_start);
+ struct mbox_hdr *rx_hdr =
+ (struct mbox_hdr *)((uintptr_t)mdev->mbase + mbox->rx_start);
+
+ rte_spinlock_lock(&mdev->mbox_lock);
+ mdev->msg_size = 0;
+ mdev->rsp_size = 0;
+ tx_hdr->msg_size = 0;
+ tx_hdr->num_msgs = 0;
+ rx_hdr->msg_size = 0;
+ rx_hdr->num_msgs = 0;
+ rte_spinlock_unlock(&mdev->mbox_lock);
+}
+
+int
+otx2_mbox_init(struct otx2_mbox *mbox, uintptr_t hwbase,
+ uintptr_t reg_base, int direction, int ndevs)
+{
+ struct otx2_mbox_dev *mdev;
+ int devid;
+
+ mbox->reg_base = reg_base;
+ mbox->hwbase = hwbase;
+
+ switch (direction) {
+ case MBOX_DIR_AFPF:
+ case MBOX_DIR_PFVF:
+ mbox->tx_start = MBOX_DOWN_TX_START;
+ mbox->rx_start = MBOX_DOWN_RX_START;
+ mbox->tx_size = MBOX_DOWN_TX_SIZE;
+ mbox->rx_size = MBOX_DOWN_RX_SIZE;
+ break;
+ case MBOX_DIR_PFAF:
+ case MBOX_DIR_VFPF:
+ mbox->tx_start = MBOX_DOWN_RX_START;
+ mbox->rx_start = MBOX_DOWN_TX_START;
+ mbox->tx_size = MBOX_DOWN_RX_SIZE;
+ mbox->rx_size = MBOX_DOWN_TX_SIZE;
+ break;
+ case MBOX_DIR_AFPF_UP:
+ case MBOX_DIR_PFVF_UP:
+ mbox->tx_start = MBOX_UP_TX_START;
+ mbox->rx_start = MBOX_UP_RX_START;
+ mbox->tx_size = MBOX_UP_TX_SIZE;
+ mbox->rx_size = MBOX_UP_RX_SIZE;
+ break;
+ case MBOX_DIR_PFAF_UP:
+ case MBOX_DIR_VFPF_UP:
+ mbox->tx_start = MBOX_UP_RX_START;
+ mbox->rx_start = MBOX_UP_TX_START;
+ mbox->tx_size = MBOX_UP_RX_SIZE;
+ mbox->rx_size = MBOX_UP_TX_SIZE;
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ switch (direction) {
+ case MBOX_DIR_AFPF:
+ case MBOX_DIR_AFPF_UP:
+ mbox->trigger = RVU_AF_AFPF_MBOX0;
+ mbox->tr_shift = 4;
+ break;
+ case MBOX_DIR_PFAF:
+ case MBOX_DIR_PFAF_UP:
+ mbox->trigger = RVU_PF_PFAF_MBOX1;
+ mbox->tr_shift = 0;
+ break;
+ case MBOX_DIR_PFVF:
+ case MBOX_DIR_PFVF_UP:
+ mbox->trigger = RVU_PF_VFX_PFVF_MBOX0;
+ mbox->tr_shift = 12;
+ break;
+ case MBOX_DIR_VFPF:
+ case MBOX_DIR_VFPF_UP:
+ mbox->trigger = RVU_VF_VFPF_MBOX1;
+ mbox->tr_shift = 0;
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ mbox->dev = malloc(ndevs * sizeof(struct otx2_mbox_dev));
+ if (!mbox->dev) {
+ otx2_mbox_fini(mbox);
+ return -ENOMEM;
+ }
+ mbox->ndevs = ndevs;
+ for (devid = 0; devid < ndevs; devid++) {
+ mdev = &mbox->dev[devid];
+ mdev->mbase = (void *)(mbox->hwbase + (devid * MBOX_SIZE));
+ rte_spinlock_init(&mdev->mbox_lock);
+ /* Init header to reset value */
+ otx2_mbox_reset(mbox, devid);
+ }
+
+ return 0;
+}
diff --git a/drivers/common/octeontx2/otx2_mbox.h
b/drivers/common/octeontx2/otx2_mbox.h
index e2d79c070..ac7de788f 100644
--- a/drivers/common/octeontx2/otx2_mbox.h
+++ b/drivers/common/octeontx2/otx2_mbox.h
@@ -1333,4 +1333,9 @@ struct tim_enable_rsp {
uint32_t __otx2_io currentbucket;
};
+void otx2_mbox_reset(struct otx2_mbox *mbox, int devid);
+int otx2_mbox_init(struct otx2_mbox *mbox, uintptr_t hwbase,
+ uintptr_t reg_base, int direction, int ndevs);
+void otx2_mbox_fini(struct otx2_mbox *mbox);
+
#endif /* __OTX2_MBOX_H__ */
--
2.21.0
