diff options
Diffstat (limited to 'drivers/infiniband/hw/ionic/ionic_lif_cfg.c')
| -rw-r--r-- | drivers/infiniband/hw/ionic/ionic_lif_cfg.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ionic/ionic_lif_cfg.c b/drivers/infiniband/hw/ionic/ionic_lif_cfg.c new file mode 100644 index 000000000000..f3cd281c3a2f --- /dev/null +++ b/drivers/infiniband/hw/ionic/ionic_lif_cfg.c @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2018-2025, Advanced Micro Devices, Inc. */ + +#include <linux/kernel.h> + +#include <ionic.h> +#include <ionic_lif.h> + +#include "ionic_lif_cfg.h" + +#define IONIC_MIN_RDMA_VERSION 0 +#define IONIC_MAX_RDMA_VERSION 2 + +static u8 ionic_get_expdb(struct ionic_lif *lif) +{ + u8 expdb_support = 0; + + if (lif->ionic->idev.phy_cmb_expdb64_pages) + expdb_support |= IONIC_EXPDB_64B_WQE; + if (lif->ionic->idev.phy_cmb_expdb128_pages) + expdb_support |= IONIC_EXPDB_128B_WQE; + if (lif->ionic->idev.phy_cmb_expdb256_pages) + expdb_support |= IONIC_EXPDB_256B_WQE; + if (lif->ionic->idev.phy_cmb_expdb512_pages) + expdb_support |= IONIC_EXPDB_512B_WQE; + + return expdb_support; +} + +void ionic_fill_lif_cfg(struct ionic_lif *lif, struct ionic_lif_cfg *cfg) +{ + union ionic_lif_identity *ident = &lif->ionic->ident.lif; + + cfg->lif = lif; + cfg->hwdev = &lif->ionic->pdev->dev; + cfg->lif_index = lif->index; + cfg->lif_hw_index = lif->hw_index; + + cfg->dbid = lif->kern_pid; + cfg->dbid_count = le32_to_cpu(lif->ionic->ident.dev.ndbpgs_per_lif); + cfg->dbpage = lif->kern_dbpage; + cfg->intr_ctrl = lif->ionic->idev.intr_ctrl; + + cfg->db_phys = lif->ionic->bars[IONIC_PCI_BAR_DBELL].bus_addr; + + if (IONIC_VERSION(ident->rdma.version, ident->rdma.minor_version) >= + IONIC_VERSION(2, 1)) + cfg->page_size_supported = + le64_to_cpu(ident->rdma.page_size_cap); + else + cfg->page_size_supported = IONIC_PAGE_SIZE_SUPPORTED; + + cfg->rdma_version = ident->rdma.version; + cfg->qp_opcodes = ident->rdma.qp_opcodes; + cfg->admin_opcodes = ident->rdma.admin_opcodes; + + cfg->stats_type = le16_to_cpu(ident->rdma.stats_type); + cfg->npts_per_lif = le32_to_cpu(ident->rdma.npts_per_lif); + cfg->nmrs_per_lif = le32_to_cpu(ident->rdma.nmrs_per_lif); + cfg->nahs_per_lif = le32_to_cpu(ident->rdma.nahs_per_lif); + + cfg->aq_base = le32_to_cpu(ident->rdma.aq_qtype.qid_base); + cfg->cq_base = le32_to_cpu(ident->rdma.cq_qtype.qid_base); + cfg->eq_base = le32_to_cpu(ident->rdma.eq_qtype.qid_base); + + /* + * ionic_create_rdma_admin() may reduce aq_count or eq_count if + * it is unable to allocate all that were requested. + * aq_count is tunable; see ionic_aq_count + * eq_count is tunable; see ionic_eq_count + */ + cfg->aq_count = le32_to_cpu(ident->rdma.aq_qtype.qid_count); + cfg->eq_count = le32_to_cpu(ident->rdma.eq_qtype.qid_count); + cfg->cq_count = le32_to_cpu(ident->rdma.cq_qtype.qid_count); + cfg->qp_count = le32_to_cpu(ident->rdma.sq_qtype.qid_count); + cfg->dbid_count = le32_to_cpu(lif->ionic->ident.dev.ndbpgs_per_lif); + + cfg->aq_qtype = ident->rdma.aq_qtype.qtype; + cfg->sq_qtype = ident->rdma.sq_qtype.qtype; + cfg->rq_qtype = ident->rdma.rq_qtype.qtype; + cfg->cq_qtype = ident->rdma.cq_qtype.qtype; + cfg->eq_qtype = ident->rdma.eq_qtype.qtype; + cfg->udma_qgrp_shift = ident->rdma.udma_shift; + cfg->udma_count = 2; + + cfg->max_stride = ident->rdma.max_stride; + cfg->expdb_mask = ionic_get_expdb(lif); + + cfg->sq_expdb = + !!(lif->qtype_info[IONIC_QTYPE_TXQ].features & IONIC_QIDENT_F_EXPDB); + cfg->rq_expdb = + !!(lif->qtype_info[IONIC_QTYPE_RXQ].features & IONIC_QIDENT_F_EXPDB); +} + +struct net_device *ionic_lif_netdev(struct ionic_lif *lif) +{ + struct net_device *netdev = lif->netdev; + + dev_hold(netdev); + return netdev; +} + +void ionic_lif_fw_version(struct ionic_lif *lif, char *str, size_t len) +{ + strscpy(str, lif->ionic->idev.dev_info.fw_version, len); +} + +u8 ionic_lif_asic_rev(struct ionic_lif *lif) +{ + return lif->ionic->idev.dev_info.asic_rev; +} |