From: Chaoyong He <chaoyong.he@corigine.com>
To: dev@dpdk.org
Cc: oss-drivers@corigine.com, Xinying Yu <xinying.yu@corigine.com>,
Chaoyong He <chaoyong.he@corigine.com>,
Long Wu <long.wu@corigine.com>,
Peng Zhang <peng.zhang@corigine.com>
Subject: [PATCH 08/10] vdpa/nfp: recover the ring index on new host
Date: Fri, 26 Apr 2024 15:48:29 +0800 [thread overview]
Message-ID: <20240426074831.1729792-9-chaoyong.he@corigine.com> (raw)
In-Reply-To: <20240426074831.1729792-1-chaoyong.he@corigine.com>
From: Xinying Yu <xinying.yu@corigine.com>
After migrate to new host, the vring information was
recovered by the value in offset 'NFP_NET_CFG_TX_USED_INDEX'
and 'NFP_NET_CFG_RX_USED_INDEX'.
Signed-off-by: Xinying Yu <xinying.yu@corigine.com>
Reviewed-by: Chaoyong He <chaoyong.he@corigine.com>
Reviewed-by: Long Wu <long.wu@corigine.com>
Reviewed-by: Peng Zhang <peng.zhang@corigine.com>
---
drivers/common/nfp/nfp_common_ctrl.h | 7 +++++--
drivers/vdpa/nfp/nfp_vdpa_core.c | 13 +++++++++++++
2 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/drivers/common/nfp/nfp_common_ctrl.h b/drivers/common/nfp/nfp_common_ctrl.h
index 9311d01590..4b273372a8 100644
--- a/drivers/common/nfp/nfp_common_ctrl.h
+++ b/drivers/common/nfp/nfp_common_ctrl.h
@@ -193,8 +193,11 @@ struct nfp_net_fw_ver {
#define NFP_NET_CFG_CAP_WORD1 0x00a4
-/* 16B reserved for future use (0x00b0 - 0x00c0). */
-#define NFP_NET_CFG_RESERVED 0x00b0
+#define NFP_NET_CFG_TX_USED_INDEX 0x00b0
+#define NFP_NET_CFG_RX_USED_INDEX 0x00b4
+
+/* 16B reserved for future use (0x00b8 - 0x0010). */
+#define NFP_NET_CFG_RESERVED 0x00b8
#define NFP_NET_CFG_RESERVED_SZ 0x0010
/*
diff --git a/drivers/vdpa/nfp/nfp_vdpa_core.c b/drivers/vdpa/nfp/nfp_vdpa_core.c
index 63a69aaf36..8f9aba9519 100644
--- a/drivers/vdpa/nfp/nfp_vdpa_core.c
+++ b/drivers/vdpa/nfp/nfp_vdpa_core.c
@@ -101,6 +101,16 @@ nfp_vdpa_hw_init(struct nfp_vdpa_hw *vdpa_hw,
return 0;
}
+static void
+nfp_vdpa_hw_queue_init(struct nfp_vdpa_hw *vdpa_hw)
+{
+ /* Distribute ring information to firmware */
+ nn_cfg_writel(&vdpa_hw->super, NFP_NET_CFG_TX_USED_INDEX,
+ vdpa_hw->vring[1].last_used_idx);
+ nn_cfg_writel(&vdpa_hw->super, NFP_NET_CFG_RX_USED_INDEX,
+ vdpa_hw->vring[0].last_used_idx);
+}
+
static uint32_t
nfp_vdpa_check_offloads(void)
{
@@ -199,6 +209,9 @@ nfp_vdpa_queue_config(struct nfp_vdpa_hw *vdpa_hw,
nn_cfg_writeq(hw, NFP_NET_CFG_RXR_ADDR(2), vdpa_hw->vring[0].used);
+ if (!relay)
+ nfp_vdpa_hw_queue_init(vdpa_hw);
+
rte_wmb();
}
--
2.39.1
next prev parent reply other threads:[~2024-04-26 7:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 7:48 [PATCH 00/10] support software live migration Chaoyong He
2024-04-26 7:48 ` [PATCH 01/10] mailmap: add new contributor Chaoyong He
2024-04-26 7:48 ` [PATCH 02/10] vdpa/nfp: fix logic in hardware init Chaoyong He
2024-04-26 7:48 ` [PATCH 03/10] vdpa/nfp: fix the logic of reconfiguration Chaoyong He
2024-04-26 7:48 ` [PATCH 04/10] vdpa/nfp: refactor the logic of datapath update Chaoyong He
2024-04-26 7:48 ` [PATCH 05/10] vdpa/nfp: add the live migration logic Chaoyong He
2024-04-26 7:48 ` [PATCH 06/10] vdpa/nfp: add the interrupt logic of vring relay Chaoyong He
2024-04-26 7:48 ` [PATCH 07/10] vdpa/nfp: setup the VF configure Chaoyong He
2024-04-26 7:48 ` Chaoyong He [this message]
2024-04-26 7:48 ` [PATCH 09/10] vdpa/nfp: setup vring relay thread Chaoyong He
2024-04-26 7:48 ` [PATCH 10/10] doc: update nfp document Chaoyong He
2024-04-26 21:31 ` Patrick Robb
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