[PATCH] net/cpfl: get running host ID

[Shaiq Wani]

Check whether CPFL PMD runs on host IMC or ACC

Signed-off-by: Shaiq Wani <shaiq.w...@intel.com>
---
 drivers/net/cpfl/cpfl_ethdev.c | 25 +++++++++++++++++++++++++
 drivers/net/cpfl/cpfl_ethdev.h |  6 +++++-
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/drivers/net/cpfl/cpfl_ethdev.c b/drivers/net/cpfl/cpfl_ethdev.c
index ef19aa1b6a..ed719ee474 100644
--- a/drivers/net/cpfl/cpfl_ethdev.c
+++ b/drivers/net/cpfl/cpfl_ethdev.c
@@ -2269,8 +2269,32 @@ cpfl_repr_allowlist_uninit(struct cpfl_adapter_ext 
*adapter)
 {
        rte_hash_free(adapter->repr_allowlist_hash);
 }
+static uint8_t
+get_running_host_id(void)
+{
+       char buf[BUFSIZ];
+       FILE *fd;
+       uint8_t host_id = CPFL_INVALID_HOST_ID;
+
+       fd = fopen("/etc/issue.net", "r");
+       if (fd == NULL) {
+               PMD_INIT_LOG(ERR, "Cannot open /etc/issue.net\n");
+               return host_id;
+       }
 
+       if (fgets(buf, sizeof(buf), fd)) {
+               /* get the first line */
+               if (strstr(buf, "IMC"))
+                       PMD_INIT_LOG(ERR, "CPFL PMD cannot running on IMC.");
+               else if (strstr(buf, "ACC"))
+                       host_id = CPFL_HOST_ID_ACC;
+               else
+                       host_id = CPFL_HOST_ID_HOST;
+       }
 
+       fclose(fd);
+       return host_id;
+}
 static int
 cpfl_adapter_ext_init(struct rte_pci_device *pci_dev, struct cpfl_adapter_ext 
*adapter,
                      struct cpfl_devargs *devargs)
@@ -2289,6 +2313,7 @@ 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..9dd8e2ba41 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 +231,8 @@ 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 +299,8 @@ 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