From: Shai Malin <smalin@marvell.com>
To: <netdev@vger.kernel.org>, <linux-nvme@lists.infradead.org>,
<sagi@grimberg.me>, <hch@lst.de>, <axboe@fb.com>,
<kbusch@kernel.org>
Cc: "David S . Miller davem @ davemloft . net --cc=Jakub Kicinski"
<kuba@kernel.org>,
smalin@marvell.com, aelior@marvell.com, mkalderon@marvell.com,
okulkarni@marvell.com, pkushwaha@marvell.com,
malin1024@gmail.com, "Nikolay Assa" <nassa@marvell.com>
Subject: [RFC PATCH v4 18/27] qedn: Add qedn_claim_dev API support
Date: Thu, 29 Apr 2021 22:09:17 +0300 [thread overview]
Message-ID: <20210429190926.5086-19-smalin@marvell.com> (raw)
In-Reply-To: <20210429190926.5086-1-smalin@marvell.com>
From: Nikolay Assa <nassa@marvell.com>
This patch introduces the qedn_claim_dev() network service which the
offload device (qedn) is using through the paired net-device (qede).
qedn_claim_dev() returns true if the IP addr(IPv4 or IPv6) of the target
server is reachable via the net-device which is paired with the
offloaded device.
Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Nikolay Assa <nassa@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Omkar Kulkarni <okulkarni@marvell.com>
Signed-off-by: Michal Kalderon <mkalderon@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
---
drivers/nvme/hw/qedn/qedn.h | 4 +++
drivers/nvme/hw/qedn/qedn_main.c | 42 ++++++++++++++++++++++++++++++--
2 files changed, 44 insertions(+), 2 deletions(-)
diff --git a/drivers/nvme/hw/qedn/qedn.h b/drivers/nvme/hw/qedn/qedn.h
index c1ac17eabcb7..7efe2366eb7c 100644
--- a/drivers/nvme/hw/qedn/qedn.h
+++ b/drivers/nvme/hw/qedn/qedn.h
@@ -8,6 +8,10 @@
#include <linux/qed/qed_if.h>
#include <linux/qed/qed_nvmetcp_if.h>
+#include <linux/qed/qed_nvmetcp_ip_services_if.h>
+#include <linux/qed/qed_chain.h>
+#include <linux/qed/storage_common.h>
+#include <linux/qed/nvmetcp_common.h>
/* Driver includes */
#include "../../host/tcp-offload.h"
diff --git a/drivers/nvme/hw/qedn/qedn_main.c b/drivers/nvme/hw/qedn/qedn_main.c
index e3e8e3676b79..52007d35622d 100644
--- a/drivers/nvme/hw/qedn/qedn_main.c
+++ b/drivers/nvme/hw/qedn/qedn_main.c
@@ -27,9 +27,47 @@ static int
qedn_claim_dev(struct nvme_tcp_ofld_dev *dev,
struct nvme_tcp_ofld_ctrl_con_params *conn_params)
{
- /* Placeholder - qedn_claim_dev */
+ struct pci_dev *qede_pdev = NULL;
+ struct net_device *ndev = NULL;
+ u16 vlan_id = 0;
+ int rc = 0;
- return 0;
+ /* qedn utilizes host network stack through paired qede device for
+ * non-offload traffic. First we verify there is valid route to remote
+ * peer.
+ */
+ if (conn_params->remote_ip_addr.ss_family == AF_INET) {
+ rc = qed_route_ipv4(&conn_params->local_ip_addr,
+ &conn_params->remote_ip_addr,
+ &conn_params->remote_mac_addr,
+ &ndev);
+ } else if (conn_params->remote_ip_addr.ss_family == AF_INET6) {
+ rc = qed_route_ipv6(&conn_params->local_ip_addr,
+ &conn_params->remote_ip_addr,
+ &conn_params->remote_mac_addr,
+ &ndev);
+ } else {
+ pr_err("address family %d not supported\n",
+ conn_params->remote_ip_addr.ss_family);
+
+ return false;
+ }
+
+ if (rc)
+ return false;
+
+ qed_vlan_get_ndev(&ndev, &vlan_id);
+ conn_params->vlan_id = vlan_id;
+
+ /* route found through ndev - validate this is qede*/
+ qede_pdev = qed_validate_ndev(ndev);
+ if (!qede_pdev)
+ return false;
+
+ dev->qede_pdev = qede_pdev;
+ dev->ndev = ndev;
+
+ return true;
}
static int qedn_create_queue(struct nvme_tcp_ofld_queue *queue, int qid,
--
2.22.0
next prev parent reply other threads:[~2021-04-29 19:19 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-29 19:08 [RFC PATCH v4 00/27] NVMeTCP Offload ULP and QEDN Device Driver Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 01/27] qed: Add NVMeTCP Offload PF Level FW and HW HSI Shai Malin
2021-05-01 16:50 ` Hannes Reinecke
2021-05-03 15:23 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 02/27] qed: Add NVMeTCP Offload Connection " Shai Malin
2021-05-01 17:28 ` Hannes Reinecke
2021-05-03 15:25 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 03/27] qed: Add qed-NVMeTCP personality Shai Malin
2021-05-02 11:11 ` Hannes Reinecke
2021-05-03 15:26 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 04/27] qed: Add support of HW filter block Shai Malin
2021-05-02 11:13 ` Hannes Reinecke
2021-05-03 15:27 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 05/27] qed: Add NVMeTCP Offload IO Level FW and HW HSI Shai Malin
2021-05-02 11:22 ` Hannes Reinecke
2021-05-04 16:25 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 06/27] qed: Add NVMeTCP Offload IO Level FW Initializations Shai Malin
2021-05-02 11:24 ` Hannes Reinecke
2021-05-04 16:28 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 07/27] qed: Add IP services APIs support Shai Malin
2021-05-02 11:26 ` Hannes Reinecke
2021-05-03 15:44 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 08/27] nvme-tcp-offload: Add nvme-tcp-offload - NVMeTCP HW offload ULP Shai Malin
2021-05-01 12:18 ` Hannes Reinecke
2021-05-03 15:46 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 09/27] nvme-fabrics: Move NVMF_ALLOWED_OPTS and NVMF_REQUIRED_OPTS definitions Shai Malin
2021-05-01 12:19 ` Hannes Reinecke
2021-05-03 15:50 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 10/27] nvme-tcp-offload: Add device scan implementation Shai Malin
2021-05-01 12:25 ` Hannes Reinecke
2021-05-05 17:52 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 11/27] nvme-tcp-offload: Add controller level implementation Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 12/27] nvme-tcp-offload: Add controller level error recovery implementation Shai Malin
2021-05-01 16:29 ` Hannes Reinecke
2021-05-03 15:52 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 13/27] nvme-tcp-offload: Add queue level implementation Shai Malin
2021-05-01 16:36 ` Hannes Reinecke
2021-05-03 15:56 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 14/27] nvme-tcp-offload: Add IO " Shai Malin
2021-05-01 16:38 ` Hannes Reinecke
2021-05-04 16:34 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 15/27] nvme-tcp-offload: Add Timeout and ASYNC Support Shai Malin
2021-05-01 16:45 ` Hannes Reinecke
2021-05-04 16:49 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 16/27] qedn: Add qedn - Marvell's NVMeTCP HW offload vendor driver Shai Malin
2021-05-02 11:27 ` Hannes Reinecke
2021-05-04 16:52 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 17/27] qedn: Add qedn probe Shai Malin
2021-05-02 11:28 ` Hannes Reinecke
2021-05-08 11:01 ` Shai Malin
2021-04-29 19:09 ` Shai Malin [this message]
2021-05-02 11:29 ` [RFC PATCH v4 18/27] qedn: Add qedn_claim_dev API support Hannes Reinecke
2021-05-07 13:57 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 19/27] qedn: Add IRQ and fast-path resources initializations Shai Malin
2021-05-02 11:32 ` Hannes Reinecke
2021-05-05 17:54 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 20/27] qedn: Add connection-level slowpath functionality Shai Malin
2021-05-02 11:37 ` Hannes Reinecke
2021-05-05 17:56 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 21/27] qedn: Add support of configuring HW filter block Shai Malin
2021-05-02 11:38 ` Hannes Reinecke
2021-05-05 17:57 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 22/27] qedn: Add IO level nvme_req and fw_cq workqueues Shai Malin
2021-05-02 11:42 ` Hannes Reinecke
2021-05-07 13:56 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 23/27] qedn: Add support of Task and SGL Shai Malin
2021-05-02 11:48 ` Hannes Reinecke
2021-05-07 14:00 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 24/27] qedn: Add support of NVME ICReq & ICResp Shai Malin
2021-05-02 11:53 ` Hannes Reinecke
2021-05-05 18:01 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 25/27] qedn: Add IO level fastpath functionality Shai Malin
2021-05-02 11:54 ` Hannes Reinecke
2021-05-05 18:04 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 26/27] qedn: Add Connection and IO level recovery flows Shai Malin
2021-05-02 11:57 ` Hannes Reinecke
2021-05-05 18:06 ` Shai Malin
2021-04-29 19:09 ` [RFC PATCH v4 27/27] qedn: Add support of ASYNC Shai Malin
2021-05-02 11:59 ` Hannes Reinecke
2021-05-05 18:08 ` Shai Malin
2021-05-01 16:47 ` [RFC PATCH v4 00/27] NVMeTCP Offload ULP and QEDN Device Driver Hannes Reinecke
2021-05-03 15:13 ` Shai Malin
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