[v5,3/6] net/qede: configure VFs on hardware
diff mbox series

Message ID 20200730144221.29051-4-manishc@marvell.com
State New
Delegated to: Jerin Jacob
Headers show
Series
  • qede: SR-IOV PF driver support
Related show

Checks

Context Check Description
ci/Intel-compilation success Compilation OK
ci/checkpatch warning coding style issues

Commit Message

Manish Chopra July 30, 2020, 2:42 p.m. UTC
Based on number of VFs enabled at PCI, PF-PMD driver instance
enables/configures those VFs from hardware perspective, such
that in later patches they could get required HW access to
communicate with PFs for slowpath configuration and run the
fastpath themsleves.

This patch also add two new qede IOV files [qede_sriov(.c|.h)]
under qede directory to add non-base driver IOV APIs/contents there.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Rasesh Mody <rmody@marvell.com>
---
 drivers/net/qede/Makefile      |  1 +
 drivers/net/qede/meson.build   |  1 +
 drivers/net/qede/qede_ethdev.c |  1 +
 drivers/net/qede/qede_ethdev.h |  1 +
 drivers/net/qede/qede_if.h     |  1 +
 drivers/net/qede/qede_main.c   |  1 +
 drivers/net/qede/qede_sriov.c  | 85 ++++++++++++++++++++++++++++++++++
 drivers/net/qede/qede_sriov.h  |  9 ++++
 8 files changed, 100 insertions(+)
 create mode 100644 drivers/net/qede/qede_sriov.c
 create mode 100644 drivers/net/qede/qede_sriov.h

Patch
diff mbox series

diff --git a/drivers/net/qede/Makefile b/drivers/net/qede/Makefile
index 0e8a67b0d..c57bef0e3 100644
--- a/drivers/net/qede/Makefile
+++ b/drivers/net/qede/Makefile
@@ -105,5 +105,6 @@  SRCS-$(CONFIG_RTE_LIBRTE_QEDE_PMD) += qede_rxtx.c
 SRCS-$(CONFIG_RTE_LIBRTE_QEDE_PMD) += qede_filter.c
 SRCS-$(CONFIG_RTE_LIBRTE_QEDE_PMD) += qede_debug.c
 SRCS-$(CONFIG_RTE_LIBRTE_QEDE_PMD) += qede_regs.c
+SRCS-$(CONFIG_RTE_LIBRTE_QEDE_PMD) += qede_sriov.c
 
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/net/qede/meson.build b/drivers/net/qede/meson.build
index 05c9bff73..ff0ac0b03 100644
--- a/drivers/net/qede/meson.build
+++ b/drivers/net/qede/meson.build
@@ -11,6 +11,7 @@  sources = files(
 	'qede_rxtx.c',
 	'qede_debug.c',
 	'qede_regs.c',
+	'qede_sriov.c',
 )
 
 if cc.has_argument('-Wno-format-nonliteral')
diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index 70d48e48e..0235c0798 100644
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -2700,6 +2700,7 @@  static int qede_common_dev_init(struct rte_eth_dev *eth_dev, bool is_vf)
 		adapter->vxlan.enable = false;
 		adapter->geneve.enable = false;
 		adapter->ipgre.enable = false;
+		qed_ops->sriov_configure(edev, pci_dev->max_vfs);
 	}
 
 	DP_INFO(edev, "MAC address : %02x:%02x:%02x:%02x:%02x:%02x\n",
diff --git a/drivers/net/qede/qede_ethdev.h b/drivers/net/qede/qede_ethdev.h
index 76c5dae3b..4fb77b05c 100644
--- a/drivers/net/qede/qede_ethdev.h
+++ b/drivers/net/qede/qede_ethdev.h
@@ -34,6 +34,7 @@ 
 #include "base/ecore_l2.h"
 #include "base/ecore_vf.h"
 
+#include "qede_sriov.h"
 #include "qede_logs.h"
 #include "qede_if.h"
 #include "qede_rxtx.h"
diff --git a/drivers/net/qede/qede_if.h b/drivers/net/qede/qede_if.h
index c5ae3fb2e..1693a243f 100644
--- a/drivers/net/qede/qede_if.h
+++ b/drivers/net/qede/qede_if.h
@@ -82,6 +82,7 @@  struct qed_eth_ops {
 	const struct qed_common_ops *common;
 	int (*fill_dev_info)(struct ecore_dev *edev,
 			     struct qed_dev_eth_info *info);
+	void (*sriov_configure)(struct ecore_dev *edev, int num_vfs);
 };
 
 struct qed_link_params {
diff --git a/drivers/net/qede/qede_main.c b/drivers/net/qede/qede_main.c
index d919f9f11..c37e8ebe0 100644
--- a/drivers/net/qede/qede_main.c
+++ b/drivers/net/qede/qede_main.c
@@ -822,6 +822,7 @@  const struct qed_common_ops qed_common_ops_pass = {
 const struct qed_eth_ops qed_eth_ops_pass = {
 	INIT_STRUCT_FIELD(common, &qed_common_ops_pass),
 	INIT_STRUCT_FIELD(fill_dev_info, &qed_fill_eth_dev_info),
+	INIT_STRUCT_FIELD(sriov_configure, &qed_sriov_configure),
 };
 
 const struct qed_eth_ops *qed_get_eth_ops(void)
diff --git a/drivers/net/qede/qede_sriov.c b/drivers/net/qede/qede_sriov.c
new file mode 100644
index 000000000..ba4384e90
--- /dev/null
+++ b/drivers/net/qede/qede_sriov.c
@@ -0,0 +1,85 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2020 Marvell.
+ * All rights reserved.
+ * www.marvell.com
+ */
+
+#include "qede_sriov.h"
+
+static void qed_sriov_enable_qid_config(struct ecore_hwfn *hwfn,
+					u16 vfid,
+					struct ecore_iov_vf_init_params *params)
+{
+	u16 num_pf_l2_queues, base, i;
+
+	/* Since we have an equal resource distribution per-VF, and we assume
+	 * PF has acquired its first queues, we start setting sequentially from
+	 * there.
+	 */
+	num_pf_l2_queues = (u16)FEAT_NUM(hwfn, ECORE_PF_L2_QUE);
+
+	base = num_pf_l2_queues + vfid * params->num_queues;
+	params->rel_vf_id = vfid;
+
+	for (i = 0; i < params->num_queues; i++) {
+		params->req_rx_queue[i] = base + i;
+		params->req_tx_queue[i] = base + i;
+	}
+
+	/* PF uses indices 0 for itself; Set vport/RSS afterwards */
+	params->vport_id = vfid + 1;
+	params->rss_eng_id = vfid + 1;
+}
+
+static void qed_sriov_enable(struct ecore_dev *edev, int num)
+{
+	struct ecore_iov_vf_init_params params;
+	struct ecore_hwfn *p_hwfn;
+	struct ecore_ptt *p_ptt;
+	int i, j, rc;
+
+	if ((u32)num >= RESC_NUM(&edev->hwfns[0], ECORE_VPORT)) {
+		DP_NOTICE(edev, false, "Can start at most %d VFs\n",
+			  RESC_NUM(&edev->hwfns[0], ECORE_VPORT) - 1);
+		return;
+	}
+
+	OSAL_MEMSET(&params, 0, sizeof(struct ecore_iov_vf_init_params));
+
+	for_each_hwfn(edev, j) {
+		int feat_num;
+
+		p_hwfn = &edev->hwfns[j];
+		p_ptt = ecore_ptt_acquire(p_hwfn);
+		feat_num = FEAT_NUM(p_hwfn, ECORE_VF_L2_QUE) / num;
+
+		params.num_queues = OSAL_MIN_T(int, feat_num, 16);
+
+		for (i = 0; i < num; i++) {
+			if (!ecore_iov_is_valid_vfid(p_hwfn, i, false, true))
+				continue;
+
+			qed_sriov_enable_qid_config(p_hwfn, i, &params);
+
+			rc = ecore_iov_init_hw_for_vf(p_hwfn, p_ptt, &params);
+			if (rc) {
+				DP_ERR(edev, "Failed to enable VF[%d]\n", i);
+				ecore_ptt_release(p_hwfn, p_ptt);
+				return;
+			}
+		}
+
+		ecore_ptt_release(p_hwfn, p_ptt);
+	}
+}
+
+void qed_sriov_configure(struct ecore_dev *edev, int num_vfs_param)
+{
+	if (!IS_ECORE_SRIOV(edev)) {
+		DP_VERBOSE(edev, ECORE_MSG_IOV, "SR-IOV is not supported\n");
+		return;
+	}
+
+	if (num_vfs_param)
+		qed_sriov_enable(edev, num_vfs_param);
+}
diff --git a/drivers/net/qede/qede_sriov.h b/drivers/net/qede/qede_sriov.h
new file mode 100644
index 000000000..6c85b1dd5
--- /dev/null
+++ b/drivers/net/qede/qede_sriov.h
@@ -0,0 +1,9 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2020 Marvell.
+ * All rights reserved.
+ * www.marvell.com
+ */
+
+#include "qede_ethdev.h"
+
+void qed_sriov_configure(struct ecore_dev *edev, int num_vfs_param);