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-rw-r--r--Documentation/networking/devlink/devlink-params.rst3
-rw-r--r--drivers/infiniband/hw/irdma/main.c3
-rw-r--r--drivers/net/ethernet/intel/ice/ice.h1
-rw-r--r--drivers/net/ethernet/intel/ice/ice_devlink.c144
-rw-r--r--drivers/net/ethernet/intel/ice/ice_devlink.h6
-rw-r--r--drivers/net/ethernet/intel/ice/ice_idc.c4
-rw-r--r--drivers/net/ethernet/intel/ice/ice_main.c9
-rw-r--r--include/linux/net/intel/iidc.h7
-rw-r--r--include/net/devlink.h4
-rw-r--r--net/core/devlink.c5
10 files changed, 180 insertions, 6 deletions
diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst
index 4878907e9232..b7dfe693a332 100644
--- a/Documentation/networking/devlink/devlink-params.rst
+++ b/Documentation/networking/devlink/devlink-params.rst
@@ -109,6 +109,9 @@ own name.
      - Boolean
      - When enabled, the device driver will instantiate VDPA networking
        specific auxiliary device of the devlink device.
+   * - ``enable_iwarp``
+     - Boolean
+     - Enable handling of iWARP traffic in the device.
    * - ``internal_err_reset``
      - Boolean
      - When enabled, the device driver will reset the device on internal
diff --git a/drivers/infiniband/hw/irdma/main.c b/drivers/infiniband/hw/irdma/main.c
index 51a41359e0b4..3fda7b78a9af 100644
--- a/drivers/infiniband/hw/irdma/main.c
+++ b/drivers/infiniband/hw/irdma/main.c
@@ -228,7 +228,8 @@ static void irdma_fill_device_info(struct irdma_device *iwdev, struct ice_pf *pf
 	rf->msix_count =  pf->num_rdma_msix;
 	rf->msix_entries = &pf->msix_entries[pf->rdma_base_vector];
 	rf->default_vsi.vsi_idx = vsi->vsi_num;
-	rf->protocol_used = IRDMA_ROCE_PROTOCOL_ONLY;
+	rf->protocol_used = pf->rdma_mode & IIDC_RDMA_PROTOCOL_ROCEV2 ?
+			    IRDMA_ROCE_PROTOCOL_ONLY : IRDMA_IWARP_PROTOCOL_ONLY;
 	rf->rdma_ver = IRDMA_GEN_2;
 	rf->rsrc_profile = IRDMA_HMC_PROFILE_DEFAULT;
 	rf->rst_to = IRDMA_RST_TIMEOUT_HZ;
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index b2db39ee5f85..b67ad51cbcc9 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -576,6 +576,7 @@ struct ice_pf {
 	struct ice_hw_port_stats stats_prev;
 	struct ice_hw hw;
 	u8 stat_prev_loaded:1; /* has previous stats been loaded */
+	u8 rdma_mode;
 	u16 dcbx_cap;
 	u32 tx_timeout_count;
 	unsigned long tx_timeout_last_recovery;
diff --git a/drivers/net/ethernet/intel/ice/ice_devlink.c b/drivers/net/ethernet/intel/ice/ice_devlink.c
index b9bd9f9472f6..478412b28a76 100644
--- a/drivers/net/ethernet/intel/ice/ice_devlink.c
+++ b/drivers/net/ethernet/intel/ice/ice_devlink.c
@@ -430,6 +430,120 @@ static const struct devlink_ops ice_devlink_ops = {
 	.flash_update = ice_devlink_flash_update,
 };
 
+static int
+ice_devlink_enable_roce_get(struct devlink *devlink, u32 id,
+			    struct devlink_param_gset_ctx *ctx)
+{
+	struct ice_pf *pf = devlink_priv(devlink);
+
+	ctx->val.vbool = pf->rdma_mode & IIDC_RDMA_PROTOCOL_ROCEV2;
+
+	return 0;
+}
+
+static int
+ice_devlink_enable_roce_set(struct devlink *devlink, u32 id,
+			    struct devlink_param_gset_ctx *ctx)
+{
+	struct ice_pf *pf = devlink_priv(devlink);
+	bool roce_ena = ctx->val.vbool;
+	int ret;
+
+	if (!roce_ena) {
+		ice_unplug_aux_dev(pf);
+		pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_ROCEV2;
+		return 0;
+	}
+
+	pf->rdma_mode |= IIDC_RDMA_PROTOCOL_ROCEV2;
+	ret = ice_plug_aux_dev(pf);
+	if (ret)
+		pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_ROCEV2;
+
+	return ret;
+}
+
+static int
+ice_devlink_enable_roce_validate(struct devlink *devlink, u32 id,
+				 union devlink_param_value val,
+				 struct netlink_ext_ack *extack)
+{
+	struct ice_pf *pf = devlink_priv(devlink);
+
+	if (!test_bit(ICE_FLAG_RDMA_ENA, pf->flags))
+		return -EOPNOTSUPP;
+
+	if (pf->rdma_mode & IIDC_RDMA_PROTOCOL_IWARP) {
+		NL_SET_ERR_MSG_MOD(extack, "iWARP is currently enabled. This device cannot enable iWARP and RoCEv2 simultaneously");
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int
+ice_devlink_enable_iw_get(struct devlink *devlink, u32 id,
+			  struct devlink_param_gset_ctx *ctx)
+{
+	struct ice_pf *pf = devlink_priv(devlink);
+
+	ctx->val.vbool = pf->rdma_mode & IIDC_RDMA_PROTOCOL_IWARP;
+
+	return 0;
+}
+
+static int
+ice_devlink_enable_iw_set(struct devlink *devlink, u32 id,
+			  struct devlink_param_gset_ctx *ctx)
+{
+	struct ice_pf *pf = devlink_priv(devlink);
+	bool iw_ena = ctx->val.vbool;
+	int ret;
+
+	if (!iw_ena) {
+		ice_unplug_aux_dev(pf);
+		pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_IWARP;
+		return 0;
+	}
+
+	pf->rdma_mode |= IIDC_RDMA_PROTOCOL_IWARP;
+	ret = ice_plug_aux_dev(pf);
+	if (ret)
+		pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_IWARP;
+
+	return ret;
+}
+
+static int
+ice_devlink_enable_iw_validate(struct devlink *devlink, u32 id,
+			       union devlink_param_value val,
+			       struct netlink_ext_ack *extack)
+{
+	struct ice_pf *pf = devlink_priv(devlink);
+
+	if (!test_bit(ICE_FLAG_RDMA_ENA, pf->flags))
+		return -EOPNOTSUPP;
+
+	if (pf->rdma_mode & IIDC_RDMA_PROTOCOL_ROCEV2) {
+		NL_SET_ERR_MSG_MOD(extack, "RoCEv2 is currently enabled. This device cannot enable iWARP and RoCEv2 simultaneously");
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static const struct devlink_param ice_devlink_params[] = {
+	DEVLINK_PARAM_GENERIC(ENABLE_ROCE, BIT(DEVLINK_PARAM_CMODE_RUNTIME),
+			      ice_devlink_enable_roce_get,
+			      ice_devlink_enable_roce_set,
+			      ice_devlink_enable_roce_validate),
+	DEVLINK_PARAM_GENERIC(ENABLE_IWARP, BIT(DEVLINK_PARAM_CMODE_RUNTIME),
+			      ice_devlink_enable_iw_get,
+			      ice_devlink_enable_iw_set,
+			      ice_devlink_enable_iw_validate),
+
+};
+
 static void ice_devlink_free(void *devlink_ptr)
 {
 	devlink_free((struct devlink *)devlink_ptr);
@@ -484,6 +598,36 @@ void ice_devlink_unregister(struct ice_pf *pf)
 	devlink_unregister(priv_to_devlink(pf));
 }
 
+int ice_devlink_register_params(struct ice_pf *pf)
+{
+	struct devlink *devlink = priv_to_devlink(pf);
+	union devlink_param_value value;
+	int err;
+
+	err = devlink_params_register(devlink, ice_devlink_params,
+				      ARRAY_SIZE(ice_devlink_params));
+	if (err)
+		return err;
+
+	value.vbool = false;
+	devlink_param_driverinit_value_set(devlink,
+					   DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
+					   value);
+
+	value.vbool = test_bit(ICE_FLAG_RDMA_ENA, pf->flags) ? true : false;
+	devlink_param_driverinit_value_set(devlink,
+					   DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
+					   value);
+
+	return 0;
+}
+
+void ice_devlink_unregister_params(struct ice_pf *pf)
+{
+	devlink_params_unregister(priv_to_devlink(pf), ice_devlink_params,
+				  ARRAY_SIZE(ice_devlink_params));
+}
+
 /**
  * ice_devlink_create_pf_port - Create a devlink port for this PF
  * @pf: the PF to create a devlink port for
diff --git a/drivers/net/ethernet/intel/ice/ice_devlink.h b/drivers/net/ethernet/intel/ice/ice_devlink.h
index b7f9551e4fc4..faea757fcf5d 100644
--- a/drivers/net/ethernet/intel/ice/ice_devlink.h
+++ b/drivers/net/ethernet/intel/ice/ice_devlink.h
@@ -4,10 +4,16 @@
 #ifndef _ICE_DEVLINK_H_
 #define _ICE_DEVLINK_H_
 
+enum ice_devlink_param_id {
+	ICE_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
+};
+
 struct ice_pf *ice_allocate_pf(struct device *dev);
 
 void ice_devlink_register(struct ice_pf *pf);
 void ice_devlink_unregister(struct ice_pf *pf);
+int ice_devlink_register_params(struct ice_pf *pf);
+void ice_devlink_unregister_params(struct ice_pf *pf);
 int ice_devlink_create_pf_port(struct ice_pf *pf);
 void ice_devlink_destroy_pf_port(struct ice_pf *pf);
 int ice_devlink_create_vf_port(struct ice_vf *vf);
diff --git a/drivers/net/ethernet/intel/ice/ice_idc.c b/drivers/net/ethernet/intel/ice/ice_idc.c
index adcc9a251595..fc3580167e7b 100644
--- a/drivers/net/ethernet/intel/ice/ice_idc.c
+++ b/drivers/net/ethernet/intel/ice/ice_idc.c
@@ -288,7 +288,7 @@ int ice_plug_aux_dev(struct ice_pf *pf)
 	adev->id = pf->aux_idx;
 	adev->dev.release = ice_adev_release;
 	adev->dev.parent = &pf->pdev->dev;
-	adev->name = IIDC_RDMA_ROCE_NAME;
+	adev->name = pf->rdma_mode & IIDC_RDMA_PROTOCOL_ROCEV2 ? "roce" : "iwarp";
 
 	ret = auxiliary_device_init(adev);
 	if (ret) {
@@ -335,6 +335,6 @@ int ice_init_rdma(struct ice_pf *pf)
 		dev_err(dev, "failed to reserve vectors for RDMA\n");
 		return ret;
 	}
-
+	pf->rdma_mode |= IIDC_RDMA_PROTOCOL_ROCEV2;
 	return ice_plug_aux_dev(pf);
 }
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index f099797f35e3..f2a5f2f965d1 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -4705,6 +4705,10 @@ probe_done:
 	if (err)
 		goto err_netdev_reg;
 
+	err = ice_devlink_register_params(pf);
+	if (err)
+		goto err_netdev_reg;
+
 	/* ready to go, so clear down state bit */
 	clear_bit(ICE_DOWN, pf->state);
 	if (ice_is_aux_ena(pf)) {
@@ -4712,7 +4716,7 @@ probe_done:
 		if (pf->aux_idx < 0) {
 			dev_err(dev, "Failed to allocate device ID for AUX driver\n");
 			err = -ENOMEM;
-			goto err_netdev_reg;
+			goto err_devlink_reg_param;
 		}
 
 		err = ice_init_rdma(pf);
@@ -4731,6 +4735,8 @@ probe_done:
 err_init_aux_unroll:
 	pf->adev = NULL;
 	ida_free(&ice_aux_ida, pf->aux_idx);
+err_devlink_reg_param:
+	ice_devlink_unregister_params(pf);
 err_netdev_reg:
 err_send_version_unroll:
 	ice_vsi_release_all(pf);
@@ -4845,6 +4851,7 @@ static void ice_remove(struct pci_dev *pdev)
 	ice_unplug_aux_dev(pf);
 	if (pf->aux_idx >= 0)
 		ida_free(&ice_aux_ida, pf->aux_idx);
+	ice_devlink_unregister_params(pf);
 	set_bit(ICE_DOWN, pf->state);
 
 	mutex_destroy(&(&pf->hw)->fdir_fltr_lock);
diff --git a/include/linux/net/intel/iidc.h b/include/linux/net/intel/iidc.h
index e32f6712aee0..1289593411d3 100644
--- a/include/linux/net/intel/iidc.h
+++ b/include/linux/net/intel/iidc.h
@@ -26,6 +26,11 @@ enum iidc_reset_type {
 	IIDC_GLOBR,
 };
 
+enum iidc_rdma_protocol {
+	IIDC_RDMA_PROTOCOL_IWARP = BIT(0),
+	IIDC_RDMA_PROTOCOL_ROCEV2 = BIT(1),
+};
+
 #define IIDC_MAX_USER_PRIORITY		8
 
 /* Struct to hold per RDMA Qset info */
@@ -70,8 +75,6 @@ int ice_rdma_request_reset(struct ice_pf *pf, enum iidc_reset_type reset_type);
 int ice_rdma_update_vsi_filter(struct ice_pf *pf, u16 vsi_id, bool enable);
 void ice_get_qos_params(struct ice_pf *pf, struct iidc_qos_params *qos);
 
-#define IIDC_RDMA_ROCE_NAME	"roce"
-
 /* Structure representing auxiliary driver tailored information about the core
  * PCI dev, each auxiliary driver using the IIDC interface will have an
  * instance of this struct dedicated to it.
diff --git a/include/net/devlink.h b/include/net/devlink.h
index aab3d007c577..e3c88fabd700 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -485,6 +485,7 @@ enum devlink_param_generic_id {
 	DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
 	DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
 	DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
+	DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
 
 	/* add new param generic ids above here*/
 	__DEVLINK_PARAM_GENERIC_ID_MAX,
@@ -534,6 +535,9 @@ enum devlink_param_generic_id {
 #define DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME "enable_vnet"
 #define DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE DEVLINK_PARAM_TYPE_BOOL
 
+#define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME "enable_iwarp"
+#define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE DEVLINK_PARAM_TYPE_BOOL
+
 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)	\
 {									\
 	.id = DEVLINK_PARAM_GENERIC_ID_##_id,				\
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 5ad72dbfcd07..d144a62cbf73 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -4432,6 +4432,11 @@ static const struct devlink_param devlink_param_generic[] = {
 		.name = DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME,
 		.type = DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE,
 	},
+	{
+		.id = DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
+		.name = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME,
+		.type = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE,
+	},
 };
 
 static int devlink_param_generic_verify(const struct devlink_param *param)
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-09-24 20:29:31 +0000