net/sfc: minimum port control sufficient to receive traffic

[dpdk.git] / drivers / net / sfc / sfc_port.c

diff --git a/drivers/net/sfc/sfc_port.c b/drivers/net/sfc/sfc_port.c
new file mode 100644 (file)
index 0000000..844363c
--- /dev/null
+++ b/drivers/net/sfc/sfc_port.c
@@ -0,0 +1,131 @@
+/*-
+ * Copyright (c) 2016 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * This software was jointly developed between OKTET Labs (under contract
+ * for Solarflare) and Solarflare Communications, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * 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 "efx.h"
+
+#include "sfc.h"
+#include "sfc_log.h"
+
+
+int
+sfc_port_start(struct sfc_adapter *sa)
+{
+       struct sfc_port *port = &sa->port;
+       int rc;
+
+       sfc_log_init(sa, "entry");
+
+       sfc_log_init(sa, "init filters");
+       rc = efx_filter_init(sa->nic);
+       if (rc != 0)
+               goto fail_filter_init;
+
+       sfc_log_init(sa, "init port");
+       rc = efx_port_init(sa->nic);
+       if (rc != 0)
+               goto fail_port_init;
+
+       sfc_log_init(sa, "set MAC PDU %u", (unsigned int)port->pdu);
+       rc = efx_mac_pdu_set(sa->nic, port->pdu);
+       if (rc != 0)
+               goto fail_mac_pdu_set;
+
+       sfc_log_init(sa, "set MAC address");
+       rc = efx_mac_addr_set(sa->nic,
+                             sa->eth_dev->data->mac_addrs[0].addr_bytes);
+       if (rc != 0)
+               goto fail_mac_addr_set;
+
+       sfc_log_init(sa, "set MAC filters");
+       rc = efx_mac_filter_set(sa->nic, B_TRUE, B_TRUE, B_TRUE, B_TRUE);
+       if (rc != 0)
+               goto fail_mac_filter_set;
+
+       sfc_log_init(sa, "disable MAC drain");
+       rc = efx_mac_drain(sa->nic, B_FALSE);
+       if (rc != 0)
+               goto fail_mac_drain;
+
+       sfc_log_init(sa, "done");
+       return 0;
+
+fail_mac_drain:
+fail_mac_filter_set:
+fail_mac_addr_set:
+fail_mac_pdu_set:
+       efx_port_fini(sa->nic);
+
+fail_port_init:
+       efx_filter_fini(sa->nic);
+
+fail_filter_init:
+       sfc_log_init(sa, "failed %d", rc);
+       return rc;
+}
+
+void
+sfc_port_stop(struct sfc_adapter *sa)
+{
+       sfc_log_init(sa, "entry");
+
+       efx_mac_drain(sa->nic, B_TRUE);
+       efx_port_fini(sa->nic);
+       efx_filter_fini(sa->nic);
+
+       sfc_log_init(sa, "done");
+}
+
+int
+sfc_port_init(struct sfc_adapter *sa)
+{
+       const struct rte_eth_dev_data *dev_data = sa->eth_dev->data;
+       struct sfc_port *port = &sa->port;
+
+       sfc_log_init(sa, "entry");
+
+       /* Enable flow control by default */
+       port->flow_ctrl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
+       port->flow_ctrl_autoneg = B_TRUE;
+
+       if (dev_data->dev_conf.rxmode.jumbo_frame)
+               port->pdu = dev_data->dev_conf.rxmode.max_rx_pkt_len;
+       else
+               port->pdu = EFX_MAC_PDU(dev_data->mtu);
+
+       sfc_log_init(sa, "done");
+       return 0;
+}
+
+void
+sfc_port_fini(struct sfc_adapter *sa)
+{
+       sfc_log_init(sa, "entry");
+
+       sfc_log_init(sa, "done");
+}