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-rw-r--r--drivers/net/ark/ark_udm.c226
1 files changed, 226 insertions, 0 deletions
diff --git a/drivers/net/ark/ark_udm.c b/drivers/net/ark/ark_udm.c
new file mode 100644
index 00000000..1ba7d26d
--- /dev/null
+++ b/drivers/net/ark/ark_udm.c
@@ -0,0 +1,226 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright (c) 2015-2017 Atomic Rules LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <unistd.h>
+
+#include "ark_logs.h"
+#include "ark_udm.h"
+
+int
+ark_udm_verify(struct ark_udm_t *udm)
+{
+ if (sizeof(struct ark_udm_t) != ARK_UDM_EXPECT_SIZE) {
+ PMD_DRV_LOG(ERR,
+ "ARK: UDM structure looks incorrect %d vs %zd\n",
+ ARK_UDM_EXPECT_SIZE, sizeof(struct ark_udm_t));
+ return -1;
+ }
+
+ if (udm->setup.const0 != ARK_UDM_CONST) {
+ PMD_DRV_LOG(ERR,
+ "ARK: UDM module not found as expected 0x%08x\n",
+ udm->setup.const0);
+ return -1;
+ }
+ return 0;
+}
+
+int
+ark_udm_stop(struct ark_udm_t *udm, const int wait)
+{
+ int cnt = 0;
+
+ udm->cfg.command = 2;
+
+ while (wait && (udm->cfg.stop_flushed & 0x01) == 0) {
+ if (cnt++ > 1000)
+ return 1;
+
+ usleep(10);
+ }
+ return 0;
+}
+
+int
+ark_udm_reset(struct ark_udm_t *udm)
+{
+ int status;
+
+ status = ark_udm_stop(udm, 1);
+ if (status != 0) {
+ PMD_DEBUG_LOG(INFO, "%s stop failed doing forced reset\n",
+ __func__);
+ udm->cfg.command = 4;
+ usleep(10);
+ udm->cfg.command = 3;
+ status = ark_udm_stop(udm, 0);
+ PMD_DEBUG_LOG(INFO, "%s stop status %d post failure"
+ " and forced reset\n",
+ __func__, status);
+ } else {
+ udm->cfg.command = 3;
+ }
+
+ return status;
+}
+
+void
+ark_udm_start(struct ark_udm_t *udm)
+{
+ udm->cfg.command = 1;
+}
+
+void
+ark_udm_stats_reset(struct ark_udm_t *udm)
+{
+ udm->pcibp.pci_clear = 1;
+ udm->tlp_ps.tlp_clear = 1;
+}
+
+void
+ark_udm_configure(struct ark_udm_t *udm,
+ uint32_t headroom,
+ uint32_t dataroom,
+ uint32_t write_interval_ns)
+{
+ /* headroom and data room are in DWords in the UDM */
+ udm->cfg.dataroom = dataroom / 4;
+ udm->cfg.headroom = headroom / 4;
+
+ /* 4 NS period ns */
+ udm->rt_cfg.write_interval = write_interval_ns / 4;
+}
+
+void
+ark_udm_write_addr(struct ark_udm_t *udm, phys_addr_t addr)
+{
+ udm->rt_cfg.hw_prod_addr = addr;
+}
+
+int
+ark_udm_is_flushed(struct ark_udm_t *udm)
+{
+ return (udm->cfg.stop_flushed & 0x01) != 0;
+}
+
+uint64_t
+ark_udm_dropped(struct ark_udm_t *udm)
+{
+ return udm->qstats.q_pkt_drop;
+}
+
+uint64_t
+ark_udm_bytes(struct ark_udm_t *udm)
+{
+ return udm->qstats.q_byte_count;
+}
+
+uint64_t
+ark_udm_packets(struct ark_udm_t *udm)
+{
+ return udm->qstats.q_ff_packet_count;
+}
+
+void
+ark_udm_dump_stats(struct ark_udm_t *udm, const char *msg)
+{
+ PMD_STATS_LOG(INFO, "UDM Stats: %s"
+ ARK_SU64 ARK_SU64 ARK_SU64 ARK_SU64 ARK_SU64 "\n",
+ msg,
+ "Pkts Received", udm->stats.rx_packet_count,
+ "Pkts Finalized", udm->stats.rx_sent_packets,
+ "Pkts Dropped", udm->tlp.pkt_drop,
+ "Bytes Count", udm->stats.rx_byte_count,
+ "MBuf Count", udm->stats.rx_mbuf_count);
+}
+
+void
+ark_udm_dump_queue_stats(struct ark_udm_t *udm, const char *msg, uint16_t qid)
+{
+ PMD_STATS_LOG(INFO, "UDM Queue %3u Stats: %s"
+ ARK_SU64 ARK_SU64
+ ARK_SU64 ARK_SU64
+ ARK_SU64 "\n",
+ qid, msg,
+ "Pkts Received", udm->qstats.q_packet_count,
+ "Pkts Finalized", udm->qstats.q_ff_packet_count,
+ "Pkts Dropped", udm->qstats.q_pkt_drop,
+ "Bytes Count", udm->qstats.q_byte_count,
+ "MBuf Count", udm->qstats.q_mbuf_count);
+}
+
+void
+ark_udm_dump(struct ark_udm_t *udm, const char *msg)
+{
+ PMD_DEBUG_LOG(DEBUG, "UDM Dump: %s Stopped: %d\n", msg,
+ udm->cfg.stop_flushed);
+}
+
+void
+ark_udm_dump_setup(struct ark_udm_t *udm, uint16_t q_id)
+{
+ PMD_DEBUG_LOG(DEBUG, "UDM Setup Q: %u"
+ ARK_SU64X ARK_SU32 "\n",
+ q_id,
+ "hw_prod_addr", udm->rt_cfg.hw_prod_addr,
+ "prod_idx", udm->rt_cfg.prod_idx);
+}
+
+void
+ark_udm_dump_perf(struct ark_udm_t *udm, const char *msg)
+{
+ struct ark_udm_pcibp_t *bp = &udm->pcibp;
+
+ PMD_STATS_LOG(INFO, "UDM Performance %s"
+ ARK_SU32 ARK_SU32 ARK_SU32 ARK_SU32 ARK_SU32 ARK_SU32
+ "\n",
+ msg,
+ "PCI Empty", bp->pci_empty,
+ "PCI Q1", bp->pci_q1,
+ "PCI Q2", bp->pci_q2,
+ "PCI Q3", bp->pci_q3,
+ "PCI Q4", bp->pci_q4,
+ "PCI Full", bp->pci_full);
+}
+
+void
+ark_udm_queue_stats_reset(struct ark_udm_t *udm)
+{
+ udm->qstats.q_byte_count = 1;
+}
+
+void
+ark_udm_queue_enable(struct ark_udm_t *udm, int enable)
+{
+ udm->qstats.q_enable = enable ? 1 : 0;
+}