diff mbox series

[15/15] net/octeontx_ep: Input output reset.

Message ID 20201231072247.5719-16-pnalla@marvell.com (mailing list archive)
State Superseded, archived
Delegated to: Ferruh Yigit
Headers show
Series Octeon Tx/Tx2 Endpoint pmd | expand

Checks

Context Check Description
ci/Intel-compilation fail Compilation issues
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-testing fail Testing issues
ci/iol-abi-testing success Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-broadcom-Performance success Performance Testing PASS
ci/iol-broadcom-Functional success Functional Testing PASS
ci/checkpatch success coding style OK

Commit Message

Nalla Pradeep Dec. 31, 2020, 7:22 a.m. UTC
From: "Nalla Pradeep" <pnalla@marvell.com>

Function to allow resetting input and output queues are added. Supports
both otx and otx2 endpoints.

Signed-off-by: Nalla Pradeep <pnalla@marvell.com>
---
 drivers/net/octeontx_ep/otx2_ep_vf.c | 120 ++++++++++++++++++++++
 drivers/net/octeontx_ep/otx_ep_vf.c  | 143 +++++++++++++++++++++++++++
 2 files changed, 263 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/octeontx_ep/otx2_ep_vf.c b/drivers/net/octeontx_ep/otx2_ep_vf.c
index 0fb8c26a5e..095c43b05a 100644
--- a/drivers/net/octeontx_ep/otx2_ep_vf.c
+++ b/drivers/net/octeontx_ep/otx2_ep_vf.c
@@ -7,6 +7,96 @@ 
 #include "otx_ep_common.h"
 #include "otx2_ep_vf.h"
 
+static int
+otx2_vf_reset_iq(struct otx_ep_device *otx_ep, int q_no)
+{
+	uint64_t loop = SDP_VF_BUSY_LOOP_COUNT;
+	volatile uint64_t d64 = 0ull;
+
+	/* There is no RST for a ring.
+	 * Clear all registers one by one after disabling the ring
+	 */
+
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_IN_ENABLE(q_no));
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_IN_INSTR_BADDR(q_no));
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_IN_INSTR_RSIZE(q_no));
+
+	d64 = 0xFFFFFFFF; /* ~0ull */
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_IN_INSTR_DBELL(q_no));
+	d64 = otx2_read64(otx_ep->hw_addr + SDP_VF_R_IN_INSTR_DBELL(q_no));
+
+	while ((d64 != 0) && loop--) {
+		otx2_write64(d64, otx_ep->hw_addr +
+			     SDP_VF_R_IN_INSTR_DBELL(q_no));
+
+		rte_delay_ms(1);
+
+		d64 = otx2_read64(otx_ep->hw_addr +
+				  SDP_VF_R_IN_INSTR_DBELL(q_no));
+	}
+
+	loop = SDP_VF_BUSY_LOOP_COUNT;
+	d64 = otx2_read64(otx_ep->hw_addr + SDP_VF_R_IN_CNTS(q_no));
+	while ((d64 != 0) && loop--) {
+		otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_IN_CNTS(q_no));
+
+		rte_delay_ms(1);
+
+		d64 = otx2_read64(otx_ep->hw_addr + SDP_VF_R_IN_CNTS(q_no));
+	}
+
+	d64 = 0ull;
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_IN_INT_LEVELS(q_no));
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_IN_PKT_CNT(q_no));
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_IN_BYTE_CNT(q_no));
+
+	return 0;
+}
+
+static int
+otx2_vf_reset_oq(struct otx_ep_device *otx_ep, int q_no)
+{
+	uint64_t loop = SDP_VF_BUSY_LOOP_COUNT;
+	volatile uint64_t d64 = 0ull;
+
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_OUT_ENABLE(q_no));
+
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_OUT_SLIST_BADDR(q_no));
+
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_OUT_SLIST_RSIZE(q_no));
+
+	d64 = 0xFFFFFFFF;
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_OUT_SLIST_DBELL(q_no));
+	d64 = otx2_read64(otx_ep->hw_addr + SDP_VF_R_OUT_SLIST_DBELL(q_no));
+
+	while ((d64 != 0) && loop--) {
+		otx2_write64(d64, otx_ep->hw_addr +
+			     SDP_VF_R_OUT_SLIST_DBELL(q_no));
+
+		rte_delay_ms(1);
+
+		d64 = otx2_read64(otx_ep->hw_addr +
+				  SDP_VF_R_OUT_SLIST_DBELL(q_no));
+	}
+
+	loop = SDP_VF_BUSY_LOOP_COUNT;
+	d64 = otx2_read64(otx_ep->hw_addr + SDP_VF_R_OUT_CNTS(q_no));
+	while ((d64 != 0) && (loop--)) {
+		otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_OUT_CNTS(q_no));
+
+		rte_delay_ms(1);
+
+		d64 = otx2_read64(otx_ep->hw_addr + SDP_VF_R_OUT_CNTS(q_no));
+	}
+
+	d64 = 0ull;
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_OUT_INT_LEVELS(q_no));
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_OUT_PKT_CNT(q_no));
+	otx2_write64(d64, otx_ep->hw_addr + SDP_VF_R_OUT_BYTE_CNT(q_no));
+
+	return 0;
+}
+
 static void
 otx2_vf_setup_global_iq_reg(struct otx_ep_device *otx_ep, int q_no)
 {
@@ -52,11 +142,39 @@  otx2_vf_setup_global_oq_reg(struct otx_ep_device *otx_ep, int q_no)
 	otx2_write64(reg_val, otx_ep->hw_addr + SDP_VF_R_OUT_CONTROL(q_no));
 }
 
+static int
+otx2_vf_reset_input_queues(struct otx_ep_device *otx_ep)
+{
+	uint32_t q_no = 0;
+
+	otx_ep_dbg("%s :", __func__);
+
+	for (q_no = 0; q_no < otx_ep->sriov_info.rings_per_vf; q_no++)
+		otx2_vf_reset_iq(otx_ep, q_no);
+
+	return 0;
+}
+
+static int
+otx2_vf_reset_output_queues(struct otx_ep_device *otx_ep)
+{
+	uint64_t q_no = 0ull;
+
+	otx_ep_dbg(" %s :", __func__);
+
+	for (q_no = 0; q_no < otx_ep->sriov_info.rings_per_vf; q_no++)
+		otx2_vf_reset_oq(otx_ep, q_no);
+
+	return 0;
+}
+
 static void
 otx2_vf_setup_global_input_regs(struct otx_ep_device *otx_ep)
 {
 	uint64_t q_no = 0ull;
 
+	otx2_vf_reset_input_queues(otx_ep);
+
 	for (q_no = 0; q_no < (otx_ep->sriov_info.rings_per_vf); q_no++)
 		otx2_vf_setup_global_iq_reg(otx_ep, q_no);
 }
@@ -66,6 +184,8 @@  otx2_vf_setup_global_output_regs(struct otx_ep_device *otx_ep)
 {
 	uint32_t q_no;
 
+	otx2_vf_reset_output_queues(otx_ep);
+
 	for (q_no = 0; q_no < (otx_ep->sriov_info.rings_per_vf); q_no++)
 		otx2_vf_setup_global_oq_reg(otx_ep, q_no);
 }
diff --git a/drivers/net/octeontx_ep/otx_ep_vf.c b/drivers/net/octeontx_ep/otx_ep_vf.c
index a7c9d48dbc..0280802aa1 100644
--- a/drivers/net/octeontx_ep/otx_ep_vf.c
+++ b/drivers/net/octeontx_ep/otx_ep_vf.c
@@ -11,6 +11,114 @@ 
 #include "otx_ep_common.h"
 #include "otx_ep_vf.h"
 
+#ifdef OTX_EP_RESET_IOQ
+static int
+otx_ep_reset_iq(struct otx_ep_device *otx_ep, int q_no)
+{
+	uint64_t loop = OTX_EP_BUSY_LOOP_COUNT;
+	volatile uint64_t d64 = 0ull;
+
+	/* There is no RST for a ring.
+	 * Clear all registers one by one after disabling the ring
+	 */
+
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_IN_ENABLE(q_no));
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_IN_INSTR_BADDR(q_no));
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_IN_INSTR_RSIZE(q_no));
+
+	d64 = 0xFFFFFFFF; /* ~0ull */
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_IN_INSTR_DBELL(q_no));
+	d64 = rte_read64(otx_ep->hw_addr + OTX_EP_R_IN_INSTR_DBELL(q_no));
+
+	while ((d64 != 0) && loop--) {
+		otx_ep_write64(d64, otx_ep->hw_addr,
+			       OTX_EP_R_IN_INSTR_DBELL(q_no));
+
+		rte_delay_ms(1);
+
+		d64 = rte_read64(otx_ep->hw_addr +
+				  OTX_EP_R_IN_INSTR_DBELL(q_no));
+	}
+	if (loop == 0) {
+		otx_ep_err("dbell reset failed\n");
+		return -1;
+	}
+
+	loop = OTX_EP_BUSY_LOOP_COUNT;
+	d64 = rte_read64(otx_ep->hw_addr + OTX_EP_R_IN_CNTS(q_no));
+	while ((d64 != 0) && loop--) {
+		otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_IN_CNTS(q_no));
+
+		rte_delay_ms(1);
+
+		d64 = rte_read64(otx_ep->hw_addr + OTX_EP_R_IN_CNTS(q_no));
+	}
+	if (loop == 0) {
+		otx_ep_err("cnt reset failed\n");
+		return -1;
+	}
+
+	d64 = 0ull;
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_IN_INT_LEVELS(q_no));
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_IN_PKT_CNT(q_no));
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_IN_BYTE_CNT(q_no));
+
+	return 0;
+}
+
+static int
+otx_ep_reset_oq(struct otx_ep_device *otx_ep, int q_no)
+{
+	uint64_t loop = OTX_EP_BUSY_LOOP_COUNT;
+	volatile uint64_t d64 = 0ull;
+
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_OUT_ENABLE(q_no));
+
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_OUT_SLIST_BADDR(q_no));
+
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_OUT_SLIST_RSIZE(q_no));
+
+	d64 = 0xFFFFFFFF;
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_OUT_SLIST_DBELL(q_no));
+	d64 = rte_read64(otx_ep->hw_addr + OTX_EP_R_OUT_SLIST_DBELL(q_no));
+
+	while ((d64 != 0) && loop--) {
+		otx_ep_write64(d64, otx_ep->hw_addr,
+			       OTX_EP_R_OUT_SLIST_DBELL(q_no));
+
+		rte_delay_ms(1);
+
+		d64 = rte_read64(otx_ep->hw_addr +
+				  OTX_EP_R_OUT_SLIST_DBELL(q_no));
+	}
+	if (loop == 0) {
+		otx_ep_err("dbell reset failed\n");
+		return -1;
+	}
+
+	loop = OTX_EP_BUSY_LOOP_COUNT;
+	d64 = rte_read64(otx_ep->hw_addr + OTX_EP_R_OUT_CNTS(q_no));
+	while ((d64 != 0) && (loop--)) {
+		otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_OUT_CNTS(q_no));
+
+		rte_delay_ms(1);
+
+		d64 = rte_read64(otx_ep->hw_addr + OTX_EP_R_OUT_CNTS(q_no));
+	}
+	if (loop == 0) {
+		otx_ep_err("cnt reset failed\n");
+		return -1;
+	}
+
+
+	d64 = 0ull;
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_OUT_INT_LEVELS(q_no));
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_OUT_PKT_CNT(q_no));
+	otx_ep_write64(d64, otx_ep->hw_addr, OTX_EP_R_OUT_BYTE_CNT(q_no));
+
+	return 0;
+}
+#endif
 
 static void
 otx_ep_setup_global_iq_reg(struct otx_ep_device *otx_ep, int q_no)
@@ -64,11 +172,42 @@  otx_ep_setup_global_oq_reg(struct otx_ep_device *otx_ep, int q_no)
 	otx_ep_write64(reg_val, otx_ep->hw_addr, OTX_EP_R_OUT_CONTROL(q_no));
 }
 
+#ifdef OTX_EP_RESET_IOQ
+static int
+otx_ep_reset_input_queues(struct otx_ep_device *otx_ep)
+{
+	uint32_t q_no = 0;
+
+	otx_ep_dbg("%s :\n", __func__);
+
+	for (q_no = 0; q_no < otx_ep->sriov_info.rings_per_vf; q_no++)
+		otx_ep_reset_iq(otx_ep, q_no);
+
+	return 0;
+}
+
+static int
+otx_ep_reset_output_queues(struct otx_ep_device *otx_ep)
+{
+	uint64_t q_no = 0ull;
+
+	otx_ep_dbg(" %s :\n", __func__);
+
+	for (q_no = 0; q_no < otx_ep->sriov_info.rings_per_vf; q_no++)
+		otx_ep_reset_oq(otx_ep, q_no);
+
+	return 0;
+}
+#endif
+
 static void
 otx_ep_setup_global_input_regs(struct otx_ep_device *otx_ep)
 {
 	uint64_t q_no = 0ull;
 
+#ifdef OTX_EP_RESET_IOQ
+	otx_ep_reset_input_queues(otx_ep);
+#endif
 	for (q_no = 0; q_no < (otx_ep->sriov_info.rings_per_vf); q_no++)
 		otx_ep_setup_global_iq_reg(otx_ep, q_no);
 }
@@ -78,8 +217,12 @@  otx_ep_setup_global_output_regs(struct otx_ep_device *otx_ep)
 {
 	uint32_t q_no;
 
+#ifdef OTX_EP_RESET_IOQ
+	otx_ep_reset_output_queues(otx_ep);
+#endif
 	for (q_no = 0; q_no < (otx_ep->sriov_info.rings_per_vf); q_no++)
 		otx_ep_setup_global_oq_reg(otx_ep, q_no);
+
 }
 
 static int