-/*-
- * Copyright (c) 2016 Solarflare Communications Inc.
- * All rights reserved.
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright(c) 2019-2020 Xilinx, Inc.
+ * Copyright(c) 2016-2019 Solarflare Communications Inc.
*
* 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 <rte_cycles.h>
#include "sfc.h"
#include "sfc_log.h"
+#include "sfc_ev.h"
#define SFC_MCDI_POLL_INTERVAL_MIN_US 10 /* 10us in 1us units */
#define SFC_MCDI_POLL_INTERVAL_MAX_US (US_PER_S / 10) /* 100ms in 1us units */
sfc_panic(sa, "MCDI timeout handling is not implemented\n");
}
+static inline boolean_t
+sfc_mcdi_proxy_event_available(struct sfc_adapter *sa)
+{
+ struct sfc_mcdi *mcdi = &sa->mcdi;
+
+ mcdi->proxy_handle = 0;
+ mcdi->proxy_result = ETIMEDOUT;
+ sfc_ev_mgmt_qpoll(sa);
+ if (mcdi->proxy_result != ETIMEDOUT)
+ return B_TRUE;
+
+ return B_FALSE;
+}
+
static void
-sfc_mcdi_poll(struct sfc_adapter *sa)
+sfc_mcdi_poll(struct sfc_adapter *sa, boolean_t proxy)
{
efx_nic_t *enp;
unsigned int delay_total;
enp = sa->nic;
do {
- if (efx_mcdi_request_poll(enp))
+ boolean_t poll_completed;
+
+ poll_completed = (proxy) ? sfc_mcdi_proxy_event_available(sa) :
+ efx_mcdi_request_poll(enp);
+ if (poll_completed)
return;
if (delay_total > SFC_MCDI_WATCHDOG_INTERVAL_US) {
- aborted = efx_mcdi_request_abort(enp);
- SFC_ASSERT(aborted);
- sfc_mcdi_timeout(sa);
+ if (!proxy) {
+ aborted = efx_mcdi_request_abort(enp);
+ SFC_ASSERT(aborted);
+ sfc_mcdi_timeout(sa);
+ }
+
return;
}
{
struct sfc_adapter *sa = (struct sfc_adapter *)arg;
struct sfc_mcdi *mcdi = &sa->mcdi;
+ uint32_t proxy_handle;
rte_spinlock_lock(&mcdi->lock);
SFC_ASSERT(mcdi->state == SFC_MCDI_INITIALIZED);
efx_mcdi_request_start(sa->nic, emrp, B_FALSE);
- sfc_mcdi_poll(sa);
+ sfc_mcdi_poll(sa, B_FALSE);
+
+ if (efx_mcdi_get_proxy_handle(sa->nic, emrp, &proxy_handle) == 0) {
+ /*
+ * Authorization is required for the MCDI request;
+ * wait for an MCDI proxy response event to bring
+ * a non-zero proxy handle (should be the same as
+ * the value obtained above) and operation status
+ */
+ sfc_mcdi_poll(sa, B_TRUE);
+
+ if ((mcdi->proxy_handle != 0) &&
+ (mcdi->proxy_handle != proxy_handle)) {
+ sfc_err(sa, "Unexpected MCDI proxy event");
+ emrp->emr_rc = EFAULT;
+ } else if (mcdi->proxy_result == 0) {
+ /*
+ * Authorization succeeded; re-issue the original
+ * request and poll for an ordinary MCDI response
+ */
+ efx_mcdi_request_start(sa->nic, emrp, B_FALSE);
+ sfc_mcdi_poll(sa, B_FALSE);
+ } else {
+ emrp->emr_rc = mcdi->proxy_result;
+ sfc_err(sa, "MCDI proxy authorization failed "
+ "(handle=%08x, result=%d)",
+ proxy_handle, mcdi->proxy_result);
+ }
+ }
rte_spinlock_unlock(&mcdi->lock);
}
(eme == EFX_MCDI_EXCEPTION_MC_REBOOT) ? "REBOOT" :
(eme == EFX_MCDI_EXCEPTION_MC_BADASSERT) ? "BADASSERT" : "UNKNOWN");
- sfc_panic(sa, "MCDI exceptions handling is not implemented\n");
+ sfc_schedule_restart(sa);
+}
+
+#define SFC_MCDI_LOG_BUF_SIZE 128
+
+static size_t
+sfc_mcdi_do_log(const struct sfc_adapter *sa,
+ char *buffer, void *data, size_t data_size,
+ size_t pfxsize, size_t position)
+{
+ uint32_t *words = data;
+ /* Space separator plus 2 characters per byte */
+ const size_t word_str_space = 1 + 2 * sizeof(*words);
+ size_t i;
+
+ for (i = 0; i < data_size; i += sizeof(*words)) {
+ if (position + word_str_space >=
+ SFC_MCDI_LOG_BUF_SIZE) {
+ /* Flush at SFC_MCDI_LOG_BUF_SIZE with backslash
+ * at the end which is required by netlogdecode.
+ */
+ buffer[position] = '\0';
+ sfc_log_mcdi(sa, "%s \\", buffer);
+ /* Preserve prefix for the next log message */
+ position = pfxsize;
+ }
+ position += snprintf(buffer + position,
+ SFC_MCDI_LOG_BUF_SIZE - position,
+ " %08x", *words);
+ words++;
+ }
+ return position;
+}
+
+static void
+sfc_mcdi_logger(void *arg, efx_log_msg_t type,
+ void *header, size_t header_size,
+ void *data, size_t data_size)
+{
+ struct sfc_adapter *sa = (struct sfc_adapter *)arg;
+ char buffer[SFC_MCDI_LOG_BUF_SIZE];
+ size_t pfxsize;
+ size_t start;
+
+ /*
+ * Unlike the other cases, MCDI logging implies more onerous work
+ * needed to produce a message. If the dynamic log level prevents
+ * the end result from being printed, the CPU time will be wasted.
+ *
+ * To avoid wasting time, the actual level is examined in advance.
+ */
+ if (rte_log_get_level(sa->mcdi.logtype) < (int)SFC_LOG_LEVEL_MCDI)
+ return;
+
+ /* The format including prefix added by sfc_log_mcdi() is the format
+ * consumed by the Solarflare netlogdecode tool.
+ */
+ pfxsize = snprintf(buffer, sizeof(buffer), "MCDI RPC %s:",
+ type == EFX_LOG_MCDI_REQUEST ? "REQ" :
+ type == EFX_LOG_MCDI_RESPONSE ? "RESP" : "???");
+ start = sfc_mcdi_do_log(sa, buffer, header, header_size,
+ pfxsize, pfxsize);
+ start = sfc_mcdi_do_log(sa, buffer, data, data_size, pfxsize, start);
+ if (start != pfxsize) {
+ buffer[start] = '\0';
+ sfc_log_mcdi(sa, "%s", buffer);
+ }
+}
+
+static void
+sfc_mcdi_ev_proxy_response(void *arg, uint32_t handle, efx_rc_t result)
+{
+ struct sfc_adapter *sa = (struct sfc_adapter *)arg;
+ struct sfc_mcdi *mcdi = &sa->mcdi;
+
+ mcdi->proxy_handle = handle;
+ mcdi->proxy_result = result;
}
int
if (rc != 0)
goto fail_dma_alloc;
+ mcdi->logtype = sfc_register_logtype(&sa->priv.shared->pci_addr,
+ SFC_LOGTYPE_MCDI_STR,
+ RTE_LOG_NOTICE);
+
emtp = &mcdi->transport;
emtp->emt_context = sa;
emtp->emt_dma_mem = &mcdi->mem;
emtp->emt_execute = sfc_mcdi_execute;
emtp->emt_ev_cpl = sfc_mcdi_ev_cpl;
emtp->emt_exception = sfc_mcdi_exception;
+ emtp->emt_logger = sfc_mcdi_logger;
+ emtp->emt_ev_proxy_response = sfc_mcdi_ev_proxy_response;
sfc_log_init(sa, "init MCDI");
rc = efx_mcdi_init(sa->nic, emtp);
git.droids-corp.org / dpdk.git / blobdiff