From patchwork Sun Jan 19 15:53:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alfredo Cardigliano X-Patchwork-Id: 64890 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 06ADEA0520; Sun, 19 Jan 2020 16:55:37 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id E02EF4C93; Sun, 19 Jan 2020 16:54:27 +0100 (CET) Received: from mail.ntop.org (mail-digitalocean.ntop.org [167.99.215.164]) by dpdk.org (Postfix) with ESMTP id 7401B29AC for ; Sun, 19 Jan 2020 16:54:15 +0100 (CET) Received: from devele.ntop.org (net-93-145-196-230.cust.vodafonedsl.it [93.145.196.230]) by mail.ntop.org (Postfix) with ESMTPSA id 24B564077C; Sun, 19 Jan 2020 16:54:15 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ntop.org; s=mail; t=1579449255; bh=HDvQTHrCgWsZ4q5L5WZ1SyJeKR8mjhxf8EMv5pmVdD4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=N17VMMDebYBaSpDMD41jrnWkxqxieyv39vw6SHJvLylR3H1qlJwPfHPTz8hwXUBsl 4KZ2bfw91fb2EaseYwZ7xfofquugNJ15rNqdy9H1T5pqDpUu6FfKqa+x1YSi/6t35W LtVfHm7zJDJ82ZWYmeFiK76D5UDvySIZLsDUWykU= From: Alfredo Cardigliano To: Alfredo Cardigliano Cc: dev@dpdk.org Date: Sun, 19 Jan 2020 16:53:45 +0100 Message-Id: <20200119155356.20403-8-cardigliano@ntop.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200119155356.20403-1-cardigliano@ntop.org> References: <20200119155356.20403-1-cardigliano@ntop.org> Subject: [dpdk-dev] [PATCH v5 07/17] net/ionic: add doorbells X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Doorbell registers are used by the driver to signal to the NIC that requests are waiting on the message queues. Signed-off-by: Alfredo Cardigliano Reviewed-by: Shannon Nelson --- drivers/net/ionic/ionic_dev.c | 15 +++++++++++++++ drivers/net/ionic/ionic_dev.h | 18 ++++++++++++++++++ drivers/net/ionic/ionic_lif.c | 23 +++++++++++++++++++++++ drivers/net/ionic/ionic_lif.h | 2 ++ 4 files changed, 58 insertions(+) diff --git a/drivers/net/ionic/ionic_dev.c b/drivers/net/ionic/ionic_dev.c index c63709ee8..13e99ace6 100644 --- a/drivers/net/ionic/ionic_dev.c +++ b/drivers/net/ionic/ionic_dev.c @@ -5,6 +5,7 @@ #include #include "ionic_dev.h" +#include "ionic_lif.h" #include "ionic.h" int @@ -297,3 +298,17 @@ ionic_dev_cmd_lif_reset(struct ionic_dev *idev, uint16_t lif_index) ionic_dev_cmd_go(idev, &cmd); } + +int +ionic_db_page_num(struct ionic_lif *lif, int pid) +{ + return (lif->index * 0) + pid; +} + +void +ionic_intr_init(struct ionic_dev *idev, struct ionic_intr_info *intr, + unsigned long index) +{ + ionic_intr_clean(idev->intr_ctrl, index); + intr->index = index; +} diff --git a/drivers/net/ionic/ionic_dev.h b/drivers/net/ionic/ionic_dev.h index afcfcbf56..d6f0669c3 100644 --- a/drivers/net/ionic/ionic_dev.h +++ b/drivers/net/ionic/ionic_dev.h @@ -121,6 +121,22 @@ struct ionic_dev { uint32_t port_info_sz; }; +#define IONIC_INTR_INDEX_NOT_ASSIGNED (-1) +#define IONIC_INTR_NAME_MAX_SZ (32) + +struct ionic_intr_info { + char name[IONIC_INTR_NAME_MAX_SZ]; + int index; + uint32_t vector; + struct ionic_intr __iomem *ctrl; +}; + +struct ionic_lif; +struct ionic_adapter; + +void ionic_intr_init(struct ionic_dev *idev, struct ionic_intr_info *intr, + unsigned long index); + int ionic_dev_setup(struct ionic_adapter *adapter); void ionic_dev_cmd_go(struct ionic_dev *idev, union ionic_dev_cmd *cmd); @@ -150,4 +166,6 @@ void ionic_dev_cmd_lif_init(struct ionic_dev *idev, uint16_t lif_index, rte_iova_t addr); void ionic_dev_cmd_lif_reset(struct ionic_dev *idev, uint16_t lif_index); +int ionic_db_page_num(struct ionic_lif *lif, int pid); + #endif /* _IONIC_DEV_H_ */ diff --git a/drivers/net/ionic/ionic_lif.c b/drivers/net/ionic/ionic_lif.c index 2559b4c16..9cdab3250 100644 --- a/drivers/net/ionic/ionic_lif.c +++ b/drivers/net/ionic/ionic_lif.c @@ -10,15 +10,38 @@ #include "ionic_lif.h" #include "ionic_ethdev.h" +static void * +ionic_bus_map_dbpage(struct ionic_adapter *adapter, int page_num) +{ + char *vaddr = adapter->bars[IONIC_PCI_BAR_DBELL].vaddr; + + if (adapter->num_bars <= IONIC_PCI_BAR_DBELL) + return NULL; + + return (void *)&vaddr[page_num << PAGE_SHIFT]; +} + int ionic_lif_alloc(struct ionic_lif *lif) { + struct ionic_adapter *adapter = lif->adapter; uint32_t socket_id = rte_socket_id(); + int dbpage_num; snprintf(lif->name, sizeof(lif->name), "lif%u", lif->index); IONIC_PRINT(DEBUG, "Allocating Lif Info"); + lif->kern_pid = 0; + + dbpage_num = ionic_db_page_num(lif, 0); + + lif->kern_dbpage = ionic_bus_map_dbpage(adapter, dbpage_num); + if (!lif->kern_dbpage) { + IONIC_PRINT(ERR, "Cannot map dbpage, aborting"); + return -ENOMEM; + } + lif->info_sz = RTE_ALIGN(sizeof(*lif->info), PAGE_SIZE); lif->info_z = rte_eth_dma_zone_reserve(lif->eth_dev, diff --git a/drivers/net/ionic/ionic_lif.h b/drivers/net/ionic/ionic_lif.h index a75e420c6..6e3233d1d 100644 --- a/drivers/net/ionic/ionic_lif.h +++ b/drivers/net/ionic/ionic_lif.h @@ -24,6 +24,8 @@ struct ionic_lif { uint32_t index; uint32_t hw_index; uint32_t state; + uint32_t kern_pid; + struct ionic_doorbell __iomem *kern_dbpage; char name[IONIC_LIF_NAME_MAX_SZ]; uint32_t info_sz; struct ionic_lif_info *info;