[PATCH v3 12/14] common/cnxk: add IO attribute to mbox structs

[Nithin Dabilpuram]

IO attribute is needed to mbox structs to avoid unaligned or pair
access causing by compiler optimization. Add them to structs
where it is missing.

Fixes: 503b82de2cbf ("common/cnxk: add mbox request and response definitions")
Fixes: ddf955d3917e ("common/cnxk: support CPT second pass")
Cc: sta...@dpdk.org

Signed-off-by: Nithin Dabilpuram <ndabilpu...@marvell.com>
---
 drivers/common/cnxk/roc_mbox.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/common/cnxk/roc_mbox.h b/drivers/common/cnxk/roc_mbox.h
index 3257a370bc..f1e9ad2893 100644
--- a/drivers/common/cnxk/roc_mbox.h
+++ b/drivers/common/cnxk/roc_mbox.h
@@ -1425,12 +1425,12 @@ struct nix_cn10k_aq_enq_req {
 struct nix_cn10k_aq_enq_rsp {
        struct mbox_msghdr hdr;
        union {
-               struct nix_cn10k_rq_ctx_s rq;
-               struct nix_cn10k_sq_ctx_s sq;
-               struct nix_cq_ctx_s cq;
-               struct nix_rsse_s rss;
-               struct nix_rx_mce_s mce;
-               struct nix_band_prof_s prof;
+               __io struct nix_cn10k_rq_ctx_s rq;
+               __io struct nix_cn10k_sq_ctx_s sq;
+               __io struct nix_cq_ctx_s cq;
+               __io struct nix_rsse_s rss;
+               __io struct nix_rx_mce_s mce;
+               __io struct nix_band_prof_s prof;
        };
 };
 
@@ -1666,11 +1666,11 @@ struct nix_rq_cpt_field_mask_cfg_req {
 #define RQ_CTX_MASK_MAX 6
        union {
                uint64_t __io rq_ctx_word_set[RQ_CTX_MASK_MAX];
-               struct nix_cn10k_rq_ctx_s rq_set;
+               __io struct nix_cn10k_rq_ctx_s rq_set;
        };
        union {
                uint64_t __io rq_ctx_word_mask[RQ_CTX_MASK_MAX];
-               struct nix_cn10k_rq_ctx_s rq_mask;
+               __io struct nix_cn10k_rq_ctx_s rq_mask;
        };
        struct nix_lf_rx_ipec_cfg1_req {
                uint32_t __io spb_cpt_aura;
-- 
2.25.1