[v4,4/6] net/qede: add infrastructure support for VF load
diff mbox series

Message ID 20200727220341.29084-5-manishc@marvell.com
State Deferred
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 27, 2020, 10:03 p.m. UTC
This patch adds necessary infrastructure support (required to handle
messages from VF and sending ramrod on behalf of VF's configuration
request from alarm handler context) to start/load the VF-PMD driver
instance on top of PF-PMD driver instance.

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/base/bcm_osal.c      | 26 ++++++++++++
 drivers/net/qede/base/bcm_osal.h      | 11 +++--
 drivers/net/qede/base/ecore.h         |  4 ++
 drivers/net/qede/base/ecore_iov_api.h |  3 ++
 drivers/net/qede/qede_ethdev.c        |  2 +
 drivers/net/qede/qede_main.c          |  4 +-
 drivers/net/qede/qede_sriov.c         | 61 +++++++++++++++++++++++++++
 drivers/net/qede/qede_sriov.h         | 16 ++++++-
 8 files changed, 121 insertions(+), 6 deletions(-)

Patch
diff mbox series

diff --git a/drivers/net/qede/base/bcm_osal.c b/drivers/net/qede/base/bcm_osal.c
index 65837b53d..ef47339df 100644
--- a/drivers/net/qede/base/bcm_osal.c
+++ b/drivers/net/qede/base/bcm_osal.c
@@ -14,6 +14,32 @@ 
 #include "ecore_iov_api.h"
 #include "ecore_mcp_api.h"
 #include "ecore_l2_api.h"
+#include "../qede_sriov.h"
+
+int osal_pf_vf_msg(struct ecore_hwfn *p_hwfn)
+{
+	int rc;
+
+	rc = qed_schedule_iov(p_hwfn, QED_IOV_WQ_MSG_FLAG);
+	if (rc) {
+		DP_VERBOSE(p_hwfn, ECORE_MSG_IOV,
+			   "Failed to schedule alarm handler rc=%d\n", rc);
+	}
+
+	return rc;
+}
+
+void osal_poll_mode_dpc(osal_int_ptr_t hwfn_cookie)
+{
+	struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)hwfn_cookie;
+
+	if (!p_hwfn)
+		return;
+
+	OSAL_SPIN_LOCK(&p_hwfn->spq_lock);
+	ecore_int_sp_dpc((osal_int_ptr_t)(p_hwfn));
+	OSAL_SPIN_UNLOCK(&p_hwfn->spq_lock);
+}
 
 /* Array of memzone pointers */
 static const struct rte_memzone *ecore_mz_mapping[RTE_MAX_MEMZONE];
diff --git a/drivers/net/qede/base/bcm_osal.h b/drivers/net/qede/base/bcm_osal.h
index 5f55cc2ee..cf58db8bf 100644
--- a/drivers/net/qede/base/bcm_osal.h
+++ b/drivers/net/qede/base/bcm_osal.h
@@ -178,9 +178,12 @@  typedef pthread_mutex_t osal_mutex_t;
 
 /* DPC */
 
+void osal_poll_mode_dpc(osal_int_ptr_t hwfn_cookie);
 #define OSAL_DPC_ALLOC(hwfn) OSAL_ALLOC(hwfn, GFP, sizeof(osal_dpc_t))
-#define OSAL_DPC_INIT(dpc, hwfn) nothing
-#define OSAL_POLL_MODE_DPC(hwfn) nothing
+#define OSAL_DPC_INIT(dpc, hwfn) \
+	OSAL_SPIN_LOCK_INIT(&(hwfn)->spq_lock)
+#define OSAL_POLL_MODE_DPC(hwfn) \
+	osal_poll_mode_dpc((osal_int_ptr_t)(p_hwfn))
 #define OSAL_DPC_SYNC(hwfn) nothing
 
 /* Lists */
@@ -345,10 +348,12 @@  u32 qede_find_first_zero_bit(u32 *bitmap, u32 length);
 
 /* SR-IOV channel */
 
+int osal_pf_vf_msg(struct ecore_hwfn *p_hwfn);
 #define OSAL_VF_FLR_UPDATE(hwfn) nothing
 #define OSAL_VF_SEND_MSG2PF(dev, done, msg, reply_addr, msg_size, reply_size) 0
 #define OSAL_VF_CQE_COMPLETION(_dev_p, _cqe, _protocol)	(0)
-#define OSAL_PF_VF_MSG(hwfn, vfid) 0
+#define OSAL_PF_VF_MSG(hwfn, vfid) \
+	osal_pf_vf_msg(hwfn)
 #define OSAL_PF_VF_MALICIOUS(hwfn, vfid) nothing
 #define OSAL_IOV_CHK_UCAST(hwfn, vfid, params) 0
 #define OSAL_IOV_POST_START_VPORT(hwfn, vf, vport_id, opaque_fid) nothing
diff --git a/drivers/net/qede/base/ecore.h b/drivers/net/qede/base/ecore.h
index 750e99a8f..6c8e6d407 100644
--- a/drivers/net/qede/base/ecore.h
+++ b/drivers/net/qede/base/ecore.h
@@ -714,6 +714,10 @@  struct ecore_hwfn {
 
 	/* @DPDK */
 	struct ecore_ptt		*p_arfs_ptt;
+
+	/* DPDK specific, not the part of vanilla ecore */
+	osal_spinlock_t spq_lock;
+	u32 iov_task_flags;
 };
 
 enum ecore_mf_mode {
diff --git a/drivers/net/qede/base/ecore_iov_api.h b/drivers/net/qede/base/ecore_iov_api.h
index 545001812..bd7c5703f 100644
--- a/drivers/net/qede/base/ecore_iov_api.h
+++ b/drivers/net/qede/base/ecore_iov_api.h
@@ -14,6 +14,9 @@ 
 #define ECORE_ETH_VF_NUM_VLAN_FILTERS 2
 #define ECORE_VF_ARRAY_LENGTH (3)
 
+#define ECORE_VF_ARRAY_GET_VFID(arr, vfid)	\
+	(((arr)[(vfid) / 64]) & (1ULL << ((vfid) % 64)))
+
 #define IS_VF(p_dev)		((p_dev)->b_is_vf)
 #define IS_PF(p_dev)		(!((p_dev)->b_is_vf))
 #ifdef CONFIG_ECORE_SRIOV
diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index 0235c0798..210a3b10f 100644
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -281,7 +281,9 @@  qede_fw_version_get(struct rte_eth_dev *dev, char *fw_ver, size_t fw_size)
 
 static void qede_interrupt_action(struct ecore_hwfn *p_hwfn)
 {
+	OSAL_SPIN_LOCK(&p_hwfn->spq_lock);
 	ecore_int_sp_dpc((osal_int_ptr_t)(p_hwfn));
+	OSAL_SPIN_UNLOCK(&p_hwfn->spq_lock);
 }
 
 static void
diff --git a/drivers/net/qede/qede_main.c b/drivers/net/qede/qede_main.c
index c37e8ebe0..0afacc064 100644
--- a/drivers/net/qede/qede_main.c
+++ b/drivers/net/qede/qede_main.c
@@ -221,7 +221,9 @@  static void qed_stop_iov_task(struct ecore_dev *edev)
 
 	for_each_hwfn(edev, i) {
 		p_hwfn = &edev->hwfns[i];
-		if (!IS_PF(edev))
+		if (IS_PF(edev))
+			rte_eal_alarm_cancel(qed_iov_pf_task, p_hwfn);
+		else
 			rte_eal_alarm_cancel(qede_vf_task, p_hwfn);
 	}
 }
diff --git a/drivers/net/qede/qede_sriov.c b/drivers/net/qede/qede_sriov.c
index ba4384e90..6d620dde8 100644
--- a/drivers/net/qede/qede_sriov.c
+++ b/drivers/net/qede/qede_sriov.c
@@ -4,6 +4,14 @@ 
  * www.marvell.com
  */
 
+#include <rte_alarm.h>
+
+#include "base/bcm_osal.h"
+#include "base/ecore.h"
+#include "base/ecore_sriov.h"
+#include "base/ecore_mcp.h"
+#include "base/ecore_vf.h"
+
 #include "qede_sriov.h"
 
 static void qed_sriov_enable_qid_config(struct ecore_hwfn *hwfn,
@@ -83,3 +91,56 @@  void qed_sriov_configure(struct ecore_dev *edev, int num_vfs_param)
 	if (num_vfs_param)
 		qed_sriov_enable(edev, num_vfs_param);
 }
+
+static void qed_handle_vf_msg(struct ecore_hwfn *hwfn)
+{
+	u64 events[ECORE_VF_ARRAY_LENGTH];
+	struct ecore_ptt *ptt;
+	int i;
+
+	ptt = ecore_ptt_acquire(hwfn);
+	if (!ptt) {
+		DP_NOTICE(hwfn, true, "PTT acquire failed\n");
+		qed_schedule_iov(hwfn, QED_IOV_WQ_MSG_FLAG);
+		return;
+	}
+
+	ecore_iov_pf_get_pending_events(hwfn, events);
+
+	ecore_for_each_vf(hwfn, i) {
+		/* Skip VFs with no pending messages */
+		if (!ECORE_VF_ARRAY_GET_VFID(events, i))
+			continue;
+
+		DP_VERBOSE(hwfn, ECORE_MSG_IOV,
+			   "Handling VF message from VF 0x%02x [Abs 0x%02x]\n",
+			   i, hwfn->p_dev->p_iov_info->first_vf_in_pf + i);
+
+		/* Copy VF's message to PF's request buffer for that VF */
+		if (ecore_iov_copy_vf_msg(hwfn, ptt, i))
+			continue;
+
+		ecore_iov_process_mbx_req(hwfn, ptt, i);
+	}
+
+	ecore_ptt_release(hwfn, ptt);
+}
+
+void qed_iov_pf_task(void *arg)
+{
+	struct ecore_hwfn *p_hwfn = arg;
+
+	if (OSAL_GET_BIT(QED_IOV_WQ_MSG_FLAG, &p_hwfn->iov_task_flags)) {
+		OSAL_CLEAR_BIT(QED_IOV_WQ_MSG_FLAG, &p_hwfn->iov_task_flags);
+		qed_handle_vf_msg(p_hwfn);
+	}
+}
+
+int qed_schedule_iov(struct ecore_hwfn *p_hwfn, enum qed_iov_wq_flag flag)
+{
+	DP_VERBOSE(p_hwfn, ECORE_MSG_IOV, "Scheduling iov task [Flag: %d]\n",
+		   flag);
+
+	OSAL_SET_BIT(flag, &p_hwfn->iov_task_flags);
+	return rte_eal_alarm_set(1, qed_iov_pf_task, p_hwfn);
+}
diff --git a/drivers/net/qede/qede_sriov.h b/drivers/net/qede/qede_sriov.h
index 6c85b1dd5..8b7fa7daa 100644
--- a/drivers/net/qede/qede_sriov.h
+++ b/drivers/net/qede/qede_sriov.h
@@ -4,6 +4,18 @@ 
  * www.marvell.com
  */
 
-#include "qede_ethdev.h"
-
 void qed_sriov_configure(struct ecore_dev *edev, int num_vfs_param);
+
+enum qed_iov_wq_flag {
+	QED_IOV_WQ_MSG_FLAG,
+	QED_IOV_WQ_SET_UNICAST_FILTER_FLAG,
+	QED_IOV_WQ_BULLETIN_UPDATE_FLAG,
+	QED_IOV_WQ_STOP_WQ_FLAG,
+	QED_IOV_WQ_FLR_FLAG,
+	QED_IOV_WQ_TRUST_FLAG,
+	QED_IOV_WQ_VF_FORCE_LINK_QUERY_FLAG,
+	QED_IOV_WQ_DB_REC_HANDLER,
+};
+
+int qed_schedule_iov(struct ecore_hwfn *p_hwfn, enum qed_iov_wq_flag flag);
+void qed_iov_pf_task(void *arg);