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Message-ID: <20260206021608.85381-11-illusion.wang@nebula-matrix.com>
Date: Fri, 6 Feb 2026 10:16:02 +0800
From: "illusion.wang" <illusion.wang@...ula-matrix.com>
To: dimon.zhao@...ula-matrix.com,
illusion.wang@...ula-matrix.com,
alvin.wang@...ula-matrix.com,
sam.chen@...ula-matrix.com,
netdev@...r.kernel.org
Cc: andrew+netdev@...n.ch,
corbet@....net,
kuba@...nel.org,
linux-doc@...r.kernel.org,
lorenzo@...nel.org,
pabeni@...hat.com,
horms@...nel.org,
vadim.fedorenko@...ux.dev,
lukas.bulwahn@...hat.com,
edumazet@...gle.com,
linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v4 net-next 10/11] net/nebula-matrix: add common/ctrl dev init/reinit operation
Common Device Setup: nbl_dev_setup_common_dev configures mailbox queues,
registers cleanup tasks, and requests IRQs.
Control Device Setup (optional): nbl_dev_setup_ctrl_dev initializes
the chip and configures all channel queues.
Signed-off-by: illusion.wang <illusion.wang@...ula-matrix.com>
---
.../nebula-matrix/nbl/nbl_core/nbl_dev.c | 178 ++++++++++++++++++
.../nebula-matrix/nbl/nbl_core/nbl_dev.h | 35 ++++
2 files changed, 213 insertions(+)
diff --git a/drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_dev.c b/drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_dev.c
index fd7c97f3b0fe..9927dd3a1791 100644
--- a/drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_dev.c
+++ b/drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_dev.c
@@ -6,6 +6,164 @@
#include "nbl_dev.h"
+static void nbl_dev_register_common_irq(struct nbl_dev_mgt *dev_mgt)
+{
+ struct nbl_dev_common *dev_common = dev_mgt->common_dev;
+ struct nbl_msix_info *msix_info = &dev_common->msix_info;
+
+ msix_info->serv_info[NBL_MSIX_MAILBOX_TYPE].num = 1;
+}
+
+/* ---------- Channel config ---------- */
+static int nbl_dev_setup_chan_qinfo(struct nbl_dev_mgt *dev_mgt, u8 chan_type)
+{
+ struct nbl_channel_ops *chan_ops = dev_mgt->chan_ops_tbl->ops;
+ struct nbl_channel_mgt *priv = dev_mgt->chan_ops_tbl->priv;
+ struct device *dev = dev_mgt->common->dev;
+ int ret = 0;
+
+ if (!chan_ops->check_queue_exist(priv, chan_type))
+ return 0;
+
+ ret = chan_ops->cfg_chan_qinfo_map_table(priv, chan_type);
+ if (ret)
+ dev_err(dev, "setup chan:%d, qinfo map table failed\n",
+ chan_type);
+
+ return ret;
+}
+
+static int nbl_dev_setup_chan_queue(struct nbl_dev_mgt *dev_mgt, u8 chan_type)
+{
+ struct nbl_channel_ops *chan_ops = dev_mgt->chan_ops_tbl->ops;
+ struct nbl_channel_mgt *priv = dev_mgt->chan_ops_tbl->priv;
+ int ret = 0;
+
+ if (chan_ops->check_queue_exist(priv, chan_type))
+ ret = chan_ops->setup_queue(priv, chan_type);
+
+ return ret;
+}
+
+static int nbl_dev_remove_chan_queue(struct nbl_dev_mgt *dev_mgt, u8 chan_type)
+{
+ struct nbl_channel_ops *chan_ops = dev_mgt->chan_ops_tbl->ops;
+ struct nbl_channel_mgt *priv = dev_mgt->chan_ops_tbl->priv;
+ int ret = 0;
+
+ if (chan_ops->check_queue_exist(priv, chan_type))
+ ret = chan_ops->teardown_queue(priv, chan_type);
+
+ return ret;
+}
+
+static void nbl_dev_register_chan_task(struct nbl_dev_mgt *dev_mgt,
+ u8 chan_type, struct work_struct *task)
+{
+ struct nbl_channel_ops *chan_ops = dev_mgt->chan_ops_tbl->ops;
+
+ if (chan_ops->check_queue_exist(dev_mgt->chan_ops_tbl->priv, chan_type))
+ chan_ops->register_chan_task(dev_mgt->chan_ops_tbl->priv,
+ chan_type, task);
+}
+
+/* ---------- Tasks config ---------- */
+static void nbl_dev_clean_mailbox_task(struct work_struct *work)
+{
+ struct nbl_dev_common *common_dev =
+ container_of(work, struct nbl_dev_common, clean_mbx_task);
+ struct nbl_dev_mgt *dev_mgt = common_dev->dev_mgt;
+ struct nbl_channel_ops *chan_ops = dev_mgt->chan_ops_tbl->ops;
+
+ chan_ops->clean_queue_subtask(dev_mgt->chan_ops_tbl->priv,
+ NBL_CHAN_TYPE_MAILBOX);
+}
+
+/* ---------- Dev init process ---------- */
+static int nbl_dev_setup_common_dev(struct nbl_adapter *adapter,
+ struct nbl_init_param *param)
+{
+ struct nbl_dev_mgt *dev_mgt =
+ (struct nbl_dev_mgt *)NBL_ADAP_TO_DEV_MGT(adapter);
+ struct nbl_dispatch_ops *disp_ops = dev_mgt->disp_ops_tbl->ops;
+ struct nbl_dispatch_mgt *priv = dev_mgt->disp_ops_tbl->priv;
+ struct nbl_common_info *common = dev_mgt->common;
+ struct nbl_dev_common *common_dev;
+
+ common_dev = devm_kzalloc(&adapter->pdev->dev,
+ sizeof(struct nbl_dev_common), GFP_KERNEL);
+ if (!common_dev)
+ return -ENOMEM;
+ common_dev->dev_mgt = dev_mgt;
+
+ if (nbl_dev_setup_chan_queue(dev_mgt, NBL_CHAN_TYPE_MAILBOX))
+ goto setup_chan_fail;
+
+ INIT_WORK(&common_dev->clean_mbx_task, nbl_dev_clean_mailbox_task);
+ common->vsi_id = disp_ops->get_vsi_id(priv, 0, NBL_VSI_DATA);
+ disp_ops->get_eth_id(priv, common->vsi_id,
+ &common->eth_mode, &common->eth_id,
+ &common->logic_eth_id);
+
+ nbl_dev_register_chan_task(dev_mgt, NBL_CHAN_TYPE_MAILBOX,
+ &common_dev->clean_mbx_task);
+
+ dev_mgt->common_dev = common_dev;
+ nbl_dev_register_common_irq(dev_mgt);
+ return 0;
+
+setup_chan_fail:
+ return -EFAULT;
+}
+
+static void nbl_dev_remove_common_dev(struct nbl_adapter *adapter)
+{
+ struct nbl_dev_mgt *dev_mgt =
+ (struct nbl_dev_mgt *)NBL_ADAP_TO_DEV_MGT(adapter);
+ struct nbl_dev_common *common_dev = dev_mgt->common_dev;
+
+ if (!common_dev)
+ return;
+
+ nbl_dev_register_chan_task(dev_mgt, NBL_CHAN_TYPE_MAILBOX, NULL);
+ cancel_work_sync(&common_dev->clean_mbx_task);
+ nbl_dev_remove_chan_queue(dev_mgt, NBL_CHAN_TYPE_MAILBOX);
+}
+
+static int nbl_dev_setup_ctrl_dev(struct nbl_adapter *adapter,
+ struct nbl_init_param *param)
+{
+ struct nbl_dev_mgt *dev_mgt =
+ (struct nbl_dev_mgt *)NBL_ADAP_TO_DEV_MGT(adapter);
+ struct nbl_dispatch_ops *disp_ops = dev_mgt->disp_ops_tbl->ops;
+ int i, ret = 0;
+
+ ret = disp_ops->init_chip_module(dev_mgt->disp_ops_tbl->priv);
+ if (ret)
+ goto chip_init_fail;
+
+ for (i = 0; i < NBL_CHAN_TYPE_MAX; i++) {
+ ret = nbl_dev_setup_chan_qinfo(dev_mgt, i);
+ if (ret)
+ goto setup_chan_q_fail;
+ }
+
+ return 0;
+setup_chan_q_fail:
+ disp_ops->deinit_chip_module(dev_mgt->disp_ops_tbl->priv);
+chip_init_fail:
+ return ret;
+}
+
+static void nbl_dev_remove_ctrl_dev(struct nbl_adapter *adapter)
+{
+ struct nbl_dev_mgt *dev_mgt =
+ (struct nbl_dev_mgt *)NBL_ADAP_TO_DEV_MGT(adapter);
+ struct nbl_dispatch_ops *disp_ops = dev_mgt->disp_ops_tbl->ops;
+
+ disp_ops->deinit_chip_module(dev_mgt->disp_ops_tbl->priv);
+}
+
static int nbl_dev_setup_dev_mgt(struct nbl_common_info *common,
struct nbl_dev_mgt **dev_mgt)
{
@@ -35,13 +193,33 @@ int nbl_dev_init(struct nbl_adapter *adapter, struct nbl_init_param *param)
(*dev_mgt)->disp_ops_tbl = disp_ops_tbl;
(*dev_mgt)->chan_ops_tbl = chan_ops_tbl;
+
+ ret = nbl_dev_setup_common_dev(adapter, param);
+ if (ret)
+ goto setup_common_dev_fail;
+
+ if (common->is_ctrl) {
+ ret = nbl_dev_setup_ctrl_dev(adapter, param);
+ if (ret)
+ goto setup_ctrl_dev_fail;
+ }
+
return 0;
+
+setup_ctrl_dev_fail:
+ nbl_dev_remove_common_dev(adapter);
+setup_common_dev_fail:
setup_mgt_fail:
return ret;
}
void nbl_dev_remove(struct nbl_adapter *adapter)
{
+ struct nbl_common_info *common = &adapter->common;
+
+ if (common->is_ctrl)
+ nbl_dev_remove_ctrl_dev(adapter);
+ nbl_dev_remove_common_dev(adapter);
}
/* ---------- Dev start process ---------- */
diff --git a/drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_dev.h b/drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_dev.h
index d41ba06d00fb..1d48a91cd230 100644
--- a/drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_dev.h
+++ b/drivers/net/ethernet/nebula-matrix/nbl/nbl_core/nbl_dev.h
@@ -9,10 +9,45 @@
#include "nbl_core.h"
+#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | \
+ NETIF_MSG_LINK | NETIF_MSG_IFDOWN | \
+ NETIF_MSG_IFUP)
+
+#define NBL_STRING_NAME_LEN 32
+
+enum nbl_msix_serv_type {
+ /* virtio_dev has a config vector_id, and the vector_id need is 0 */
+ NBL_MSIX_VIRTIO_TYPE = 0,
+ NBL_MSIX_NET_TYPE,
+ NBL_MSIX_MAILBOX_TYPE,
+ NBL_MSIX_TYPE_MAX
+};
+
+struct nbl_msix_serv_info {
+ char irq_name[NBL_STRING_NAME_LEN];
+ u16 num;
+ u16 base_vector_id;
+ /* true: hw report msix, hw need to mask actively */
+ bool hw_self_mask_en;
+};
+
+struct nbl_msix_info {
+ struct nbl_msix_serv_info serv_info[NBL_MSIX_TYPE_MAX];
+};
+
+struct nbl_dev_common {
+ struct nbl_dev_mgt *dev_mgt;
+ struct nbl_msix_info msix_info;
+ char mailbox_name[NBL_STRING_NAME_LEN];
+ // for ctrl-dev/net-dev mailbox recv msg
+ struct work_struct clean_mbx_task;
+};
+
struct nbl_dev_mgt {
struct nbl_common_info *common;
struct nbl_dispatch_ops_tbl *disp_ops_tbl;
struct nbl_channel_ops_tbl *chan_ops_tbl;
+ struct nbl_dev_common *common_dev;
};
#endif
--
2.47.3
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