net/sfc/base: import SFN7xxx family support
[dpdk.git] / drivers / net / sfc / base / ef10_phy.c
diff --git a/drivers/net/sfc/base/ef10_phy.c b/drivers/net/sfc/base/ef10_phy.c
new file mode 100644 (file)
index 0000000..36e2603
--- /dev/null
@@ -0,0 +1,393 @@
+/*
+ * Copyright (c) 2012-2016 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing official
+ * policies, either expressed or implied, of the FreeBSD Project.
+ */
+
+#include "efx.h"
+#include "efx_impl.h"
+
+#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
+
+static                 void
+mcdi_phy_decode_cap(
+       __in            uint32_t mcdi_cap,
+       __out           uint32_t *maskp)
+{
+       uint32_t mask;
+
+       mask = 0;
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN))
+               mask |= (1 << EFX_PHY_CAP_10HDX);
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN))
+               mask |= (1 << EFX_PHY_CAP_10FDX);
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN))
+               mask |= (1 << EFX_PHY_CAP_100HDX);
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN))
+               mask |= (1 << EFX_PHY_CAP_100FDX);
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN))
+               mask |= (1 << EFX_PHY_CAP_1000HDX);
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
+               mask |= (1 << EFX_PHY_CAP_1000FDX);
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
+               mask |= (1 << EFX_PHY_CAP_10000FDX);
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN))
+               mask |= (1 << EFX_PHY_CAP_40000FDX);
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN))
+               mask |= (1 << EFX_PHY_CAP_PAUSE);
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN))
+               mask |= (1 << EFX_PHY_CAP_ASYM);
+       if (mcdi_cap & (1 << MC_CMD_PHY_CAP_AN_LBN))
+               mask |= (1 << EFX_PHY_CAP_AN);
+
+       *maskp = mask;
+}
+
+static                 void
+mcdi_phy_decode_link_mode(
+       __in            efx_nic_t *enp,
+       __in            uint32_t link_flags,
+       __in            unsigned int speed,
+       __in            unsigned int fcntl,
+       __out           efx_link_mode_t *link_modep,
+       __out           unsigned int *fcntlp)
+{
+       boolean_t fd = !!(link_flags &
+                   (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN));
+       boolean_t up = !!(link_flags &
+                   (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN));
+
+       _NOTE(ARGUNUSED(enp))
+
+       if (!up)
+               *link_modep = EFX_LINK_DOWN;
+       else if (speed == 40000 && fd)
+               *link_modep = EFX_LINK_40000FDX;
+       else if (speed == 10000 && fd)
+               *link_modep = EFX_LINK_10000FDX;
+       else if (speed == 1000)
+               *link_modep = fd ? EFX_LINK_1000FDX : EFX_LINK_1000HDX;
+       else if (speed == 100)
+               *link_modep = fd ? EFX_LINK_100FDX : EFX_LINK_100HDX;
+       else if (speed == 10)
+               *link_modep = fd ? EFX_LINK_10FDX : EFX_LINK_10HDX;
+       else
+               *link_modep = EFX_LINK_UNKNOWN;
+
+       if (fcntl == MC_CMD_FCNTL_OFF)
+               *fcntlp = 0;
+       else if (fcntl == MC_CMD_FCNTL_RESPOND)
+               *fcntlp = EFX_FCNTL_RESPOND;
+       else if (fcntl == MC_CMD_FCNTL_GENERATE)
+               *fcntlp = EFX_FCNTL_GENERATE;
+       else if (fcntl == MC_CMD_FCNTL_BIDIR)
+               *fcntlp = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
+       else {
+               EFSYS_PROBE1(mc_pcol_error, int, fcntl);
+               *fcntlp = 0;
+       }
+}
+
+
+                       void
+ef10_phy_link_ev(
+       __in            efx_nic_t *enp,
+       __in            efx_qword_t *eqp,
+       __out           efx_link_mode_t *link_modep)
+{
+       efx_port_t *epp = &(enp->en_port);
+       unsigned int link_flags;
+       unsigned int speed;
+       unsigned int fcntl;
+       efx_link_mode_t link_mode;
+       uint32_t lp_cap_mask;
+
+       /*
+        * Convert the LINKCHANGE speed enumeration into mbit/s, in the
+        * same way as GET_LINK encodes the speed
+        */
+       switch (MCDI_EV_FIELD(eqp, LINKCHANGE_SPEED)) {
+       case MCDI_EVENT_LINKCHANGE_SPEED_100M:
+               speed = 100;
+               break;
+       case MCDI_EVENT_LINKCHANGE_SPEED_1G:
+               speed = 1000;
+               break;
+       case MCDI_EVENT_LINKCHANGE_SPEED_10G:
+               speed = 10000;
+               break;
+       case MCDI_EVENT_LINKCHANGE_SPEED_40G:
+               speed = 40000;
+               break;
+       default:
+               speed = 0;
+               break;
+       }
+
+       link_flags = MCDI_EV_FIELD(eqp, LINKCHANGE_LINK_FLAGS);
+       mcdi_phy_decode_link_mode(enp, link_flags, speed,
+                                   MCDI_EV_FIELD(eqp, LINKCHANGE_FCNTL),
+                                   &link_mode, &fcntl);
+       mcdi_phy_decode_cap(MCDI_EV_FIELD(eqp, LINKCHANGE_LP_CAP),
+                           &lp_cap_mask);
+
+       /*
+        * It's safe to update ep_lp_cap_mask without the driver's port lock
+        * because presumably any concurrently running efx_port_poll() is
+        * only going to arrive at the same value.
+        *
+        * ep_fcntl has two meanings. It's either the link common fcntl
+        * (if the PHY supports AN), or it's the forced link state. If
+        * the former, it's safe to update the value for the same reason as
+        * for ep_lp_cap_mask. If the latter, then just ignore the value,
+        * because we can race with efx_mac_fcntl_set().
+        */
+       epp->ep_lp_cap_mask = lp_cap_mask;
+       epp->ep_fcntl = fcntl;
+
+       *link_modep = link_mode;
+}
+
+       __checkReturn   efx_rc_t
+ef10_phy_power(
+       __in            efx_nic_t *enp,
+       __in            boolean_t power)
+{
+       efx_rc_t rc;
+
+       if (!power)
+               return (0);
+
+       /* Check if the PHY is a zombie */
+       if ((rc = ef10_phy_verify(enp)) != 0)
+               goto fail1;
+
+       enp->en_reset_flags |= EFX_RESET_PHY;
+
+       return (0);
+
+fail1:
+       EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+       return (rc);
+}
+
+       __checkReturn   efx_rc_t
+ef10_phy_get_link(
+       __in            efx_nic_t *enp,
+       __out           ef10_link_state_t *elsp)
+{
+       efx_mcdi_req_t req;
+       uint8_t payload[MAX(MC_CMD_GET_LINK_IN_LEN,
+                           MC_CMD_GET_LINK_OUT_LEN)];
+       efx_rc_t rc;
+
+       (void) memset(payload, 0, sizeof (payload));
+       req.emr_cmd = MC_CMD_GET_LINK;
+       req.emr_in_buf = payload;
+       req.emr_in_length = MC_CMD_GET_LINK_IN_LEN;
+       req.emr_out_buf = payload;
+       req.emr_out_length = MC_CMD_GET_LINK_OUT_LEN;
+
+       efx_mcdi_execute(enp, &req);
+
+       if (req.emr_rc != 0) {
+               rc = req.emr_rc;
+               goto fail1;
+       }
+
+       if (req.emr_out_length_used < MC_CMD_GET_LINK_OUT_LEN) {
+               rc = EMSGSIZE;
+               goto fail2;
+       }
+
+       mcdi_phy_decode_cap(MCDI_OUT_DWORD(req, GET_LINK_OUT_CAP),
+                           &elsp->els_adv_cap_mask);
+       mcdi_phy_decode_cap(MCDI_OUT_DWORD(req, GET_LINK_OUT_LP_CAP),
+                           &elsp->els_lp_cap_mask);
+
+       mcdi_phy_decode_link_mode(enp, MCDI_OUT_DWORD(req, GET_LINK_OUT_FLAGS),
+                           MCDI_OUT_DWORD(req, GET_LINK_OUT_LINK_SPEED),
+                           MCDI_OUT_DWORD(req, GET_LINK_OUT_FCNTL),
+                           &elsp->els_link_mode, &elsp->els_fcntl);
+
+       elsp->els_mac_up = MCDI_OUT_DWORD(req, GET_LINK_OUT_MAC_FAULT) == 0;
+
+       return (0);
+
+fail2:
+       EFSYS_PROBE(fail2);
+fail1:
+       EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+       return (rc);
+}
+
+       __checkReturn   efx_rc_t
+ef10_phy_reconfigure(
+       __in            efx_nic_t *enp)
+{
+       efx_port_t *epp = &(enp->en_port);
+       efx_mcdi_req_t req;
+       uint8_t payload[MAX(MC_CMD_SET_LINK_IN_LEN,
+                           MC_CMD_SET_LINK_OUT_LEN)];
+       uint32_t cap_mask;
+       unsigned int led_mode;
+       unsigned int speed;
+       boolean_t supported;
+       efx_rc_t rc;
+
+       if ((rc = efx_mcdi_link_control_supported(enp, &supported)) != 0)
+               goto fail1;
+       if (supported == B_FALSE)
+               goto out;
+
+       (void) memset(payload, 0, sizeof (payload));
+       req.emr_cmd = MC_CMD_SET_LINK;
+       req.emr_in_buf = payload;
+       req.emr_in_length = MC_CMD_SET_LINK_IN_LEN;
+       req.emr_out_buf = payload;
+       req.emr_out_length = MC_CMD_SET_LINK_OUT_LEN;
+
+       cap_mask = epp->ep_adv_cap_mask;
+       MCDI_IN_POPULATE_DWORD_10(req, SET_LINK_IN_CAP,
+               PHY_CAP_10HDX, (cap_mask >> EFX_PHY_CAP_10HDX) & 0x1,
+               PHY_CAP_10FDX, (cap_mask >> EFX_PHY_CAP_10FDX) & 0x1,
+               PHY_CAP_100HDX, (cap_mask >> EFX_PHY_CAP_100HDX) & 0x1,
+               PHY_CAP_100FDX, (cap_mask >> EFX_PHY_CAP_100FDX) & 0x1,
+               PHY_CAP_1000HDX, (cap_mask >> EFX_PHY_CAP_1000HDX) & 0x1,
+               PHY_CAP_1000FDX, (cap_mask >> EFX_PHY_CAP_1000FDX) & 0x1,
+               PHY_CAP_10000FDX, (cap_mask >> EFX_PHY_CAP_10000FDX) & 0x1,
+               PHY_CAP_PAUSE, (cap_mask >> EFX_PHY_CAP_PAUSE) & 0x1,
+               PHY_CAP_ASYM, (cap_mask >> EFX_PHY_CAP_ASYM) & 0x1,
+               PHY_CAP_AN, (cap_mask >> EFX_PHY_CAP_AN) & 0x1);
+       /* Too many fields for for POPULATE macros, so insert this afterwards */
+       MCDI_IN_SET_DWORD_FIELD(req, SET_LINK_IN_CAP,
+           PHY_CAP_40000FDX, (cap_mask >> EFX_PHY_CAP_40000FDX) & 0x1);
+
+       MCDI_IN_SET_DWORD(req, SET_LINK_IN_LOOPBACK_MODE, MC_CMD_LOOPBACK_NONE);
+       speed = 0;
+       MCDI_IN_SET_DWORD(req, SET_LINK_IN_LOOPBACK_SPEED, speed);
+
+       MCDI_IN_SET_DWORD(req, SET_LINK_IN_FLAGS, 0);
+
+       efx_mcdi_execute(enp, &req);
+
+       if (req.emr_rc != 0) {
+               rc = req.emr_rc;
+               goto fail2;
+       }
+
+       /* And set the blink mode */
+       (void) memset(payload, 0, sizeof (payload));
+       req.emr_cmd = MC_CMD_SET_ID_LED;
+       req.emr_in_buf = payload;
+       req.emr_in_length = MC_CMD_SET_ID_LED_IN_LEN;
+       req.emr_out_buf = payload;
+       req.emr_out_length = MC_CMD_SET_ID_LED_OUT_LEN;
+
+       MCDI_IN_SET_DWORD(req, SET_ID_LED_IN_STATE, MC_CMD_LED_DEFAULT);
+
+       efx_mcdi_execute(enp, &req);
+
+       if (req.emr_rc != 0) {
+               rc = req.emr_rc;
+               goto fail3;
+       }
+out:
+       return (0);
+
+fail3:
+       EFSYS_PROBE(fail3);
+fail2:
+       EFSYS_PROBE(fail2);
+fail1:
+       EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+       return (rc);
+}
+
+       __checkReturn   efx_rc_t
+ef10_phy_verify(
+       __in            efx_nic_t *enp)
+{
+       efx_mcdi_req_t req;
+       uint8_t payload[MAX(MC_CMD_GET_PHY_STATE_IN_LEN,
+                           MC_CMD_GET_PHY_STATE_OUT_LEN)];
+       uint32_t state;
+       efx_rc_t rc;
+
+       (void) memset(payload, 0, sizeof (payload));
+       req.emr_cmd = MC_CMD_GET_PHY_STATE;
+       req.emr_in_buf = payload;
+       req.emr_in_length = MC_CMD_GET_PHY_STATE_IN_LEN;
+       req.emr_out_buf = payload;
+       req.emr_out_length = MC_CMD_GET_PHY_STATE_OUT_LEN;
+
+       efx_mcdi_execute(enp, &req);
+
+       if (req.emr_rc != 0) {
+               rc = req.emr_rc;
+               goto fail1;
+       }
+
+       if (req.emr_out_length_used < MC_CMD_GET_PHY_STATE_OUT_LEN) {
+               rc = EMSGSIZE;
+               goto fail2;
+       }
+
+       state = MCDI_OUT_DWORD(req, GET_PHY_STATE_OUT_STATE);
+       if (state != MC_CMD_PHY_STATE_OK) {
+               if (state != MC_CMD_PHY_STATE_ZOMBIE)
+                       EFSYS_PROBE1(mc_pcol_error, int, state);
+               rc = ENOTACTIVE;
+               goto fail3;
+       }
+
+       return (0);
+
+fail3:
+       EFSYS_PROBE(fail3);
+fail2:
+       EFSYS_PROBE(fail2);
+fail1:
+       EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+       return (rc);
+}
+
+       __checkReturn   efx_rc_t
+ef10_phy_oui_get(
+       __in            efx_nic_t *enp,
+       __out           uint32_t *ouip)
+{
+       _NOTE(ARGUNUSED(enp, ouip))
+
+       return (ENOTSUP);
+}
+
+#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */