NFP vNICs use a subset of PCI device BARs. vNIC config bar depends on
firmware symbol defining how to map it through a NFP expansion bar.
This patch adds a NSPU API function for getting a vNIC config bar
mapped through a expansion bar giving a firmware symbol. The PMD will
use the PCI bar offset returned for accessing the vNIC bar.
Signed-off-by: Alejandro Lucero <alejandro.luc...@netronome.com>
---
drivers/net/nfp/nfp_nspu.c | 13 +++++++++++++
drivers/net/nfp/nfp_nspu.h | 1 +
2 files changed, 14 insertions(+)
diff --git a/drivers/net/nfp/nfp_nspu.c b/drivers/net/nfp/nfp_nspu.c
index f4fee71..f68bae6 100644
--- a/drivers/net/nfp/nfp_nspu.c
+++ b/drivers/net/nfp/nfp_nspu.c
@@ -496,3 +496,16 @@
return 0;
}
+
+int
+nfp_nsp_map_ctrl_bar(nspu_desc_t *desc, uint64_t *pcie_offset)
+{
+ ssize_t bar0_sym_size;
+
+ if (nfp_nspu_set_bar_from_symbl(desc, "_pf0_net_bar0",
+ NFP_NET_PF_CFG_EXP_BAR,
+ pcie_offset, &bar0_sym_size))
+ return -ENODEV;
+
+ return 0;
+}
diff --git a/drivers/net/nfp/nfp_nspu.h b/drivers/net/nfp/nfp_nspu.h
index c439700..8211f92 100644
--- a/drivers/net/nfp/nfp_nspu.h
+++ b/drivers/net/nfp/nfp_nspu.h
@@ -73,3 +73,4 @@ int nfp_nspu_init(nspu_desc_t *desc, int nfp, int pcie_bar,
size_t pcie_barsz,
int exp_bar, void *exp_bar_cfg_base, void *exp_bar_mmap);
int nfp_nsp_get_abi_version(nspu_desc_t *desc, int *major, int *minor);
int nfp_nsp_fw_setup(nspu_desc_t *desc, const char *sym, uint64_t
*pcie_offset);
+int nfp_nsp_map_ctrl_bar(nspu_desc_t *desc, uint64_t *pcie_offset);
--
1.9.1
