From: Shaiq Wani <shaiq.wani@intel.com>
To: dev@dpdk.org
Subject: [PATCH v5] net/cpfl: get running host ID for CPFL PMD
Date: Thu, 6 Jun 2024 10:44:22 +0000 [thread overview]
Message-ID: <20240606104422.1230909-1-shaiq.wani@intel.com> (raw)
In-Reply-To: <20240530093958.801348-1-shaiq.wani@intel.com>
Check whether CPFL PMD runs on Host or ACC
---
v2 Changes:
-Changed implementation based on review comment.
v3 Changes:
-Fixed indentation.
v4 Changes:
-Fix ipu_imc and ipu_acc to ipu-imc and ipu-acc.
v5 Changes:
-Updated the documentation with the changes implemented
in this patch.
---
Signed-off-by: Shaiq Wani <shaiq.wani@intel.com>
---
doc/guides/nics/cpfl.rst | 3 +++
drivers/net/cpfl/cpfl_ethdev.c | 19 +++++++++++++++++++
drivers/net/cpfl/cpfl_ethdev.h | 5 ++++-
3 files changed, 26 insertions(+), 1 deletion(-)
diff --git a/doc/guides/nics/cpfl.rst b/doc/guides/nics/cpfl.rst
index 9b7a99c894..3430ac7398 100644
--- a/doc/guides/nics/cpfl.rst
+++ b/doc/guides/nics/cpfl.rst
@@ -150,6 +150,9 @@ Runtime Configuration
Then the PMD will load json file for device ``ca:00.0``.
The parameter is optional.
+ As CPFL PMD can run on both XEON host and IPU's ACC, the driver dynamically detects
+ which system it is running on using get_running_host_id functionality.
+
Driver compilation and testing
------------------------------
diff --git a/drivers/net/cpfl/cpfl_ethdev.c b/drivers/net/cpfl/cpfl_ethdev.c
index ef19aa1b6a..4e9fea9643 100644
--- a/drivers/net/cpfl/cpfl_ethdev.c
+++ b/drivers/net/cpfl/cpfl_ethdev.c
@@ -14,6 +14,7 @@
#include "cpfl_ethdev.h"
#include <ethdev_private.h>
+#include <sys/utsname.h>
#include "cpfl_rxtx.h"
#include "cpfl_flow.h"
#include "cpfl_rules.h"
@@ -2270,6 +2271,23 @@ cpfl_repr_allowlist_uninit(struct cpfl_adapter_ext *adapter)
rte_hash_free(adapter->repr_allowlist_hash);
}
+static uint8_t
+get_running_host_id(void)
+{
+ struct utsname unamedata;
+ uint8_t host_id = CPFL_INVALID_HOST_ID;
+
+ if (uname(&unamedata) != 0)
+ PMD_INIT_LOG(ERR, "Cannot fetch node_name for host\n");
+ else if (strstr(unamedata.nodename, "ipu-imc"))
+ PMD_INIT_LOG(ERR, "CPFL PMD cannot be running on IMC.");
+ else if (strstr(unamedata.nodename, "ipu-acc"))
+ host_id = CPFL_HOST_ID_ACC;
+ else
+ host_id = CPFL_HOST_ID_HOST;
+
+ return host_id;
+}
static int
cpfl_adapter_ext_init(struct rte_pci_device *pci_dev, struct cpfl_adapter_ext *adapter,
@@ -2289,6 +2307,7 @@ cpfl_adapter_ext_init(struct rte_pci_device *pci_dev, struct cpfl_adapter_ext *a
hw->vendor_id = pci_dev->id.vendor_id;
hw->device_id = pci_dev->id.device_id;
hw->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id;
+ adapter->host_id = get_running_host_id();
strncpy(adapter->name, pci_dev->device.name, PCI_PRI_STR_SIZE);
diff --git a/drivers/net/cpfl/cpfl_ethdev.h b/drivers/net/cpfl/cpfl_ethdev.h
index 457db6d6be..3f6f9ca5ea 100644
--- a/drivers/net/cpfl/cpfl_ethdev.h
+++ b/drivers/net/cpfl/cpfl_ethdev.h
@@ -66,6 +66,7 @@
#define CPFL_PF_TYPE_NUM 2
#define CPFL_HOST_ID_HOST 0
#define CPFL_HOST_ID_ACC 1
+#define CPFL_INVALID_HOST_ID UINT8_MAX
#define CPFL_PF_TYPE_APF 0
#define CPFL_PF_TYPE_CPF 1
@@ -230,6 +231,7 @@ struct cpfl_adapter_ext {
uint8_t ctrl_vport_recv_info[IDPF_DFLT_MBX_BUF_SIZE];
struct idpf_ctlq_info *ctlqp[CPFL_CFGQ_NUM];
struct cpfl_ctlq_create_info cfgq_info[CPFL_CFGQ_NUM];
+ uint8_t host_id;
};
TAILQ_HEAD(cpfl_adapter_list, cpfl_adapter_ext);
@@ -296,7 +298,8 @@ cpfl_get_vsi_id(struct cpfl_itf *itf)
vport_identity.func_type = CPCHNL2_FTYPE_LAN_PF;
/* host: CPFL_HOST0_CPF_ID, acc: CPFL_ACC_CPF_ID */
- vport_identity.pf_id = CPFL_ACC_CPF_ID;
+ vport_identity.pf_id = (itf->adapter->host_id == CPFL_HOST_ID_ACC) ?
+ CPFL_ACC_CPF_ID : CPFL_HOST0_CPF_ID;
vport_identity.vf_id = 0;
vport_identity.vport_id = vport_id;
ret = rte_hash_lookup_data(itf->adapter->vport_map_hash,
--
2.34.1
next prev parent reply other threads:[~2024-06-06 10:45 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-24 4:05 [PATCH v3] " Shaiq Wani
2024-05-30 9:39 ` [PATCH v4] " Shaiq Wani
2024-06-04 16:17 ` Stephen Hemminger
2024-06-05 5:48 ` Wani, Shaiq
2024-06-05 18:05 ` Stephen Hemminger
2024-06-06 10:44 ` Shaiq Wani [this message]
2024-06-13 15:36 ` [PATCH v5] " Stephen Hemminger
2024-07-05 15:05 ` Bruce Richardson
2024-07-05 15:16 ` Bruce Richardson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240606104422.1230909-1-shaiq.wani@intel.com \
--to=shaiq.wani@intel.com \
--cc=dev@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).