--- /dev/null
+/*
+ * 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_SIENA && EFSYS_OPT_MCDI
+
+#define SIENA_MCDI_PDU(_emip) \
+ (((emip)->emi_port == 1) \
+ ? MC_SMEM_P0_PDU_OFST >> 2 \
+ : MC_SMEM_P1_PDU_OFST >> 2)
+
+#define SIENA_MCDI_DOORBELL(_emip) \
+ (((emip)->emi_port == 1) \
+ ? MC_SMEM_P0_DOORBELL_OFST >> 2 \
+ : MC_SMEM_P1_DOORBELL_OFST >> 2)
+
+#define SIENA_MCDI_STATUS(_emip) \
+ (((emip)->emi_port == 1) \
+ ? MC_SMEM_P0_STATUS_OFST >> 2 \
+ : MC_SMEM_P1_STATUS_OFST >> 2)
+
+
+ void
+siena_mcdi_send_request(
+ __in efx_nic_t *enp,
+ __in_bcount(hdr_len) void *hdrp,
+ __in size_t hdr_len,
+ __in_bcount(sdu_len) void *sdup,
+ __in size_t sdu_len)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ efx_dword_t dword;
+ unsigned int pdur;
+ unsigned int dbr;
+ unsigned int pos;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
+
+ EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
+ pdur = SIENA_MCDI_PDU(emip);
+ dbr = SIENA_MCDI_DOORBELL(emip);
+
+ /* Write the header */
+ EFSYS_ASSERT3U(hdr_len, ==, sizeof (efx_dword_t));
+ dword = *(efx_dword_t *)hdrp;
+ EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, pdur, &dword, B_TRUE);
+
+ /* Write the payload */
+ for (pos = 0; pos < sdu_len; pos += sizeof (efx_dword_t)) {
+ dword = *(efx_dword_t *)((uint8_t *)sdup + pos);
+ EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM,
+ pdur + 1 + (pos >> 2), &dword, B_FALSE);
+ }
+
+ /* Ring the doorbell */
+ EFX_POPULATE_DWORD_1(dword, EFX_DWORD_0, 0xd004be11);
+ EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, dbr, &dword, B_FALSE);
+}
+
+ efx_rc_t
+siena_mcdi_poll_reboot(
+ __in efx_nic_t *enp)
+{
+#if 1
+ /*
+ * XXX Bug 25922, bug 26099: This function is not being used
+ * properly. Until its callers are fixed, it should always
+ * return 0.
+ */
+ _NOTE(ARGUNUSED(enp))
+ return (0);
+#else
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ unsigned int rebootr;
+ efx_dword_t dword;
+ uint32_t value;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
+ EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
+ rebootr = SIENA_MCDI_STATUS(emip);
+
+ EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM, rebootr, &dword, B_FALSE);
+ value = EFX_DWORD_FIELD(dword, EFX_DWORD_0);
+
+ if (value == 0)
+ return (0);
+
+ EFX_ZERO_DWORD(dword);
+ EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, rebootr, &dword, B_FALSE);
+
+ if (value == MC_STATUS_DWORD_ASSERT)
+ return (EINTR);
+ else
+ return (EIO);
+#endif
+}
+
+extern __checkReturn boolean_t
+siena_mcdi_poll_response(
+ __in efx_nic_t *enp)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ efx_dword_t hdr;
+ unsigned int pdur;
+
+ EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
+ pdur = SIENA_MCDI_PDU(emip);
+
+ EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM, pdur, &hdr, B_FALSE);
+ return (EFX_DWORD_FIELD(hdr, MCDI_HEADER_RESPONSE) ? B_TRUE : B_FALSE);
+}
+
+ void
+siena_mcdi_read_response(
+ __in efx_nic_t *enp,
+ __out_bcount(length) void *bufferp,
+ __in size_t offset,
+ __in size_t length)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ unsigned int pdur;
+ unsigned int pos;
+ efx_dword_t data;
+
+ EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
+ pdur = SIENA_MCDI_PDU(emip);
+
+ for (pos = 0; pos < length; pos += sizeof (efx_dword_t)) {
+ EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM,
+ pdur + ((offset + pos) >> 2), &data, B_FALSE);
+ memcpy((uint8_t *)bufferp + pos, &data,
+ MIN(sizeof (data), length - pos));
+ }
+}
+
+ __checkReturn efx_rc_t
+siena_mcdi_init(
+ __in efx_nic_t *enp,
+ __in const efx_mcdi_transport_t *mtp)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ efx_oword_t oword;
+ unsigned int portnum;
+ efx_rc_t rc;
+
+ _NOTE(ARGUNUSED(mtp))
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
+
+ /* Determine the port number to use for MCDI */
+ EFX_BAR_READO(enp, FR_AZ_CS_DEBUG_REG, &oword);
+ portnum = EFX_OWORD_FIELD(oword, FRF_CZ_CS_PORT_NUM);
+
+ if (portnum == 0) {
+ /* Presumably booted from ROM; only MCDI port 1 will work */
+ emip->emi_port = 1;
+ } else if (portnum <= 2) {
+ emip->emi_port = portnum;
+ } else {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ /* Siena BootROM and firmware only support MCDIv1 */
+ emip->emi_max_version = 1;
+
+ /*
+ * Wipe the atomic reboot status so subsequent MCDI requests succeed.
+ * BOOT_STATUS is preserved so eno_nic_probe() can boot out of the
+ * assertion handler.
+ */
+ (void) siena_mcdi_poll_reboot(enp);
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ void
+siena_mcdi_fini(
+ __in efx_nic_t *enp)
+{
+ _NOTE(ARGUNUSED(enp))
+}
+
+ __checkReturn efx_rc_t
+siena_mcdi_feature_supported(
+ __in efx_nic_t *enp,
+ __in efx_mcdi_feature_id_t id,
+ __out boolean_t *supportedp)
+{
+ efx_rc_t rc;
+
+ EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
+
+ switch (id) {
+ case EFX_MCDI_FEATURE_FW_UPDATE:
+ case EFX_MCDI_FEATURE_LINK_CONTROL:
+ case EFX_MCDI_FEATURE_MACADDR_CHANGE:
+ case EFX_MCDI_FEATURE_MAC_SPOOFING:
+ *supportedp = B_TRUE;
+ break;
+ default:
+ rc = ENOTSUP;
+ goto fail1;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+/* Default timeout for MCDI command processing. */
+#define SIENA_MCDI_CMD_TIMEOUT_US (10 * 1000 * 1000)
+
+ void
+siena_mcdi_get_timeout(
+ __in efx_nic_t *enp,
+ __in efx_mcdi_req_t *emrp,
+ __out uint32_t *timeoutp)
+{
+ _NOTE(ARGUNUSED(enp, emrp))
+
+ *timeoutp = SIENA_MCDI_CMD_TIMEOUT_US;
+}
+
+
+#endif /* EFSYS_OPT_SIENA && EFSYS_OPT_MCDI */
Code Review / deb_dpdk.git / blobdiff