11df4a688d
Enable RTE_ETH_DEV_CLOSE_REMOVE during PCI probe for all ports enumerated under the PF. Free up the underlying port Virtual Identifier (VI) and associated resources during port close. Once all the ports under the PF are closed, free up the PF-wide shared resources. Invoke port close function of all ports under the PF, in PCI remove too. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
305 lines
8.1 KiB
C
305 lines
8.1 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2018 Chelsio Communications.
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* All rights reserved.
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*/
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#include <rte_ethdev_driver.h>
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#include <rte_ethdev_pci.h>
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#include <rte_malloc.h>
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#include "base/common.h"
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#include "base/t4_regs.h"
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#include "base/t4_msg.h"
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#include "cxgbe.h"
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#include "cxgbe_pfvf.h"
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#include "mps_tcam.h"
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/*
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* Figure out how many Ports and Queue Sets we can support. This depends on
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* knowing our Virtual Function Resources and may be called a second time if
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* we fall back from MSI-X to MSI Interrupt Mode.
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*/
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static void size_nports_qsets(struct adapter *adapter)
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{
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struct vf_resources *vfres = &adapter->params.vfres;
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unsigned int pmask_nports;
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/*
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* The number of "ports" which we support is equal to the number of
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* Virtual Interfaces with which we've been provisioned.
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*/
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adapter->params.nports = vfres->nvi;
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if (adapter->params.nports > MAX_NPORTS) {
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dev_warn(adapter->pdev_dev, "only using %d of %d maximum"
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" allowed virtual interfaces\n", MAX_NPORTS,
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adapter->params.nports);
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adapter->params.nports = MAX_NPORTS;
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}
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/*
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* We may have been provisioned with more VIs than the number of
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* ports we're allowed to access (our Port Access Rights Mask).
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* This is obviously a configuration conflict but we don't want to
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* do anything silly just because of that.
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*/
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pmask_nports = hweight32(adapter->params.vfres.pmask);
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if (pmask_nports < adapter->params.nports) {
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dev_warn(adapter->pdev_dev, "only using %d of %d provissioned"
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" virtual interfaces; limited by Port Access Rights"
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" mask %#x\n", pmask_nports, adapter->params.nports,
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adapter->params.vfres.pmask);
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adapter->params.nports = pmask_nports;
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}
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cxgbe_configure_max_ethqsets(adapter);
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if (adapter->sge.max_ethqsets < adapter->params.nports) {
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dev_warn(adapter->pdev_dev, "only using %d of %d available"
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" virtual interfaces (too few Queue Sets)\n",
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adapter->sge.max_ethqsets, adapter->params.nports);
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adapter->params.nports = adapter->sge.max_ethqsets;
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}
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}
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void cxgbevf_stats_get(struct port_info *pi, struct port_stats *stats)
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{
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t4vf_get_port_stats(pi->adapter, pi->pidx, stats);
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}
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static int adap_init0vf(struct adapter *adapter)
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{
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u32 param, val = 0;
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int err;
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err = t4vf_fw_reset(adapter);
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if (err < 0) {
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dev_err(adapter->pdev_dev, "FW reset failed: err=%d\n", err);
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return err;
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}
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/*
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* Grab basic operational parameters. These will predominantly have
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* been set up by the Physical Function Driver or will be hard coded
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* into the adapter. We just have to live with them ... Note that
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* we _must_ get our VPD parameters before our SGE parameters because
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* we need to know the adapter's core clock from the VPD in order to
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* properly decode the SGE Timer Values.
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*/
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err = t4vf_get_dev_params(adapter);
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if (err) {
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dev_err(adapter->pdev_dev, "unable to retrieve adapter"
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" device parameters: err=%d\n", err);
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return err;
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}
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err = t4vf_get_vpd_params(adapter);
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if (err) {
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dev_err(adapter->pdev_dev, "unable to retrieve adapter"
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" VPD parameters: err=%d\n", err);
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return err;
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}
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adapter->pf = t4vf_get_pf_from_vf(adapter);
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err = t4vf_sge_init(adapter);
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if (err) {
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dev_err(adapter->pdev_dev, "error in sge init\n");
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return err;
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}
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err = t4vf_get_rss_glb_config(adapter);
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if (err) {
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dev_err(adapter->pdev_dev, "unable to retrieve adapter"
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" RSS parameters: err=%d\n", err);
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return err;
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}
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if (adapter->params.rss.mode !=
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FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL) {
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dev_err(adapter->pdev_dev, "unable to operate with global RSS"
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" mode %d\n", adapter->params.rss.mode);
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return -EINVAL;
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}
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/* If we're running on newer firmware, let it know that we're
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* prepared to deal with encapsulated CPL messages. Older
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* firmware won't understand this and we'll just get
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* unencapsulated messages ...
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*/
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param = CXGBE_FW_PARAM_PFVF(CPLFW4MSG_ENCAP);
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val = 1;
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t4vf_set_params(adapter, 1, ¶m, &val);
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/* Query for max number of packets that can be coalesced for Tx */
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param = CXGBE_FW_PARAM_PFVF(MAX_PKTS_PER_ETH_TX_PKTS_WR);
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err = t4vf_query_params(adapter, 1, ¶m, &val);
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if (!err && val > 0)
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adapter->params.max_tx_coalesce_num = val;
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else
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adapter->params.max_tx_coalesce_num = ETH_COALESCE_VF_PKT_NUM;
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/*
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* Grab our Virtual Interface resource allocation, extract the
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* features that we're interested in and do a bit of sanity testing on
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* what we discover.
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*/
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err = t4vf_get_vfres(adapter);
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if (err) {
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dev_err(adapter->pdev_dev, "unable to get virtual interface"
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" resources: err=%d\n", err);
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return err;
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}
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/*
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* Check for various parameter sanity issues.
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*/
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if (adapter->params.vfres.pmask == 0) {
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dev_err(adapter->pdev_dev, "no port access configured\n"
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"usable!\n");
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return -EINVAL;
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}
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if (adapter->params.vfres.nvi == 0) {
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dev_err(adapter->pdev_dev, "no virtual interfaces configured/"
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"usable!\n");
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return -EINVAL;
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}
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/*
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* Initialize nports and max_ethqsets now that we have our Virtual
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* Function Resources.
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*/
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size_nports_qsets(adapter);
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adapter->flags |= FW_OK;
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return 0;
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}
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int cxgbevf_probe(struct adapter *adapter)
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{
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struct port_info *pi;
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unsigned int pmask;
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int err = 0;
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int i;
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t4_os_lock_init(&adapter->mbox_lock);
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TAILQ_INIT(&adapter->mbox_list);
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err = t4vf_prep_adapter(adapter);
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if (err)
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return err;
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if (!is_t4(adapter->params.chip)) {
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adapter->bar2 = (void *)adapter->pdev->mem_resource[2].addr;
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if (!adapter->bar2) {
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dev_err(adapter, "cannot map device bar2 region\n");
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err = -ENOMEM;
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return err;
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}
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}
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err = adap_init0vf(adapter);
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if (err) {
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dev_err(adapter, "%s: Adapter initialization failed, error %d\n",
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__func__, err);
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goto out_free;
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}
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pmask = adapter->params.vfres.pmask;
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for_each_port(adapter, i) {
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const unsigned int numa_node = rte_socket_id();
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char name[RTE_ETH_NAME_MAX_LEN];
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struct rte_eth_dev *eth_dev;
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int port_id;
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if (pmask == 0)
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break;
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port_id = ffs(pmask) - 1;
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pmask &= ~(1 << port_id);
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snprintf(name, sizeof(name), "%s_%d",
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adapter->pdev->device.name, i);
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if (i == 0) {
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/* First port is already allocated by DPDK */
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eth_dev = adapter->eth_dev;
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goto allocate_mac;
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}
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/*
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* now do all data allocation - for eth_dev structure,
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* and internal (private) data for the remaining ports
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*/
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/* reserve an ethdev entry */
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eth_dev = rte_eth_dev_allocate(name);
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if (!eth_dev) {
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err = -ENOMEM;
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goto out_free;
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}
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eth_dev->data->dev_private =
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rte_zmalloc_socket(name, sizeof(struct port_info),
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RTE_CACHE_LINE_SIZE, numa_node);
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if (!eth_dev->data->dev_private)
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goto out_free;
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allocate_mac:
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pi = eth_dev->data->dev_private;
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adapter->port[i] = pi;
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pi->eth_dev = eth_dev;
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pi->adapter = adapter;
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pi->xact_addr_filt = -1;
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pi->port_id = port_id;
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pi->pidx = i;
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pi->eth_dev->device = &adapter->pdev->device;
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pi->eth_dev->dev_ops = adapter->eth_dev->dev_ops;
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pi->eth_dev->tx_pkt_burst = adapter->eth_dev->tx_pkt_burst;
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pi->eth_dev->rx_pkt_burst = adapter->eth_dev->rx_pkt_burst;
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rte_eth_copy_pci_info(pi->eth_dev, adapter->pdev);
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pi->eth_dev->data->mac_addrs = rte_zmalloc(name,
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RTE_ETHER_ADDR_LEN, 0);
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if (!pi->eth_dev->data->mac_addrs) {
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dev_err(adapter, "%s: Mem allocation failed for storing mac addr, aborting\n",
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__func__);
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err = -ENOMEM;
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goto out_free;
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}
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pi->eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
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if (i > 0) {
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/* First port will be notified by upper layer */
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rte_eth_dev_probing_finish(eth_dev);
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}
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}
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if (adapter->flags & FW_OK) {
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err = t4vf_port_init(adapter);
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if (err) {
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dev_err(adapter, "%s: t4_port_init failed with err %d\n",
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__func__, err);
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goto out_free;
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}
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}
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cxgbe_cfg_queues(adapter->eth_dev);
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cxgbe_print_adapter_info(adapter);
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cxgbe_print_port_info(adapter);
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adapter->mpstcam = t4_init_mpstcam(adapter);
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if (!adapter->mpstcam)
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dev_warn(adapter,
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"VF could not allocate mps tcam table. Continuing\n");
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err = cxgbe_init_rss(adapter);
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if (err)
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goto out_free;
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return 0;
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out_free:
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for_each_port(adapter, i) {
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pi = adap2pinfo(adapter, i);
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if (pi->viid != 0)
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t4_free_vi(adapter, adapter->mbox, adapter->pf,
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0, pi->viid);
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rte_eth_dev_release_port(pi->eth_dev);
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}
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return -err;
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}
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