regex/mlx5: add engine status check

[dpdk.git] / drivers / regex / mlx5 / mlx5_regex.c

diff --git a/drivers/regex/mlx5/mlx5_regex.c b/drivers/regex/mlx5/mlx5_regex.c
index ce2216b..89d4fc8 100644 (file)
--- a/drivers/regex/mlx5/mlx5_regex.c
+++ b/drivers/regex/mlx5/mlx5_regex.c
@@ -17,6 +17,7 @@
 
 #include "mlx5_regex.h"
 #include "mlx5_regex_utils.h"
+#include "mlx5_rxp_csrs.h"
 
 int mlx5_regex_logtype;
 
@@ -51,6 +52,28 @@ mlx5_regex_get_ib_device_match(struct rte_pci_addr *addr)
        mlx5_glue->free_device_list(ibv_list);
        return ibv_match;
 }
+static int
+mlx5_regex_engines_status(struct ibv_context *ctx, int num_engines)
+{
+       uint32_t fpga_ident = 0;
+       int err;
+       int i;
+
+       for (i = 0; i < num_engines; i++) {
+               err = mlx5_devx_regex_register_read(ctx, i,
+                                                   MLX5_RXP_CSR_IDENTIFIER,
+                                                   &fpga_ident);
+               fpga_ident = (fpga_ident & (0x0000FFFF));
+               if (err || fpga_ident != MLX5_RXP_IDENTIFIER) {
+                       DRV_LOG(ERR, "Failed setup RXP %d err %d database "
+                               "memory 0x%x", i, err, fpga_ident);
+                       if (!err)
+                               err = EINVAL;
+                       return err;
+               }
+       }
+       return 0;
+}
 
 static void
 mlx5_regex_get_name(char *name, struct rte_pci_device *pci_dev __rte_unused)
@@ -97,6 +120,11 @@ mlx5_regex_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
                rte_errno = ENOTSUP;
                goto error;
        }
+       if (mlx5_regex_engines_status(ctx, 2)) {
+               DRV_LOG(ERR, "RegEx engine error.");
+               rte_errno = ENOMEM;
+               goto error;
+       }
        priv = rte_zmalloc("mlx5 regex device private", sizeof(*priv),
                           RTE_CACHE_LINE_SIZE);
        if (!priv) {