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From: Andre Muezerie <andremue@linux.microsoft.com>
To: roretzla@linux.microsoft.com
Cc: aman.deep.singh@intel.com, anatoly.burakov@intel.com,
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Subject: [PATCH v9 26/30] lib/ipsec: replace packed attributes
Date: Wed, 8 Jan 2025 16:48:31 -0800
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MSVC struct packing is not compatible with GCC. Replace macro
__rte_packed with __rte_packed_begin to push existing pack value
and set packing to 1-byte and macro __rte_packed_end to restore
the pack value prior to the push.
Macro __rte_packed_end is deliberately utilized to trigger a
MSVC compiler warning if no existing packing has been pushed allowing
easy identification of locations where the __rte_packed_begin is
missing.
Signed-off-by: Andre Muezerie <andremue@linux.microsoft.com>
---
lib/ipsec/crypto.h | 44 ++++++++++++++++++++++----------------------
1 file changed, 22 insertions(+), 22 deletions(-)
diff --git a/lib/ipsec/crypto.h b/lib/ipsec/crypto.h
index 93d20aaaa0..dc6210a49a 100644
--- a/lib/ipsec/crypto.h
+++ b/lib/ipsec/crypto.h
@@ -15,11 +15,11 @@
* AES-CTR counter block format.
*/
-struct aesctr_cnt_blk {
+struct __rte_packed_begin aesctr_cnt_blk {
uint32_t nonce;
uint64_t iv;
uint32_t cnt;
-} __rte_packed;
+} __rte_packed_end;
/*
* CHACHA20-POLY1305 devices have some specific requirements
@@ -27,13 +27,13 @@ struct aesctr_cnt_blk {
* Ideally that to be done by the driver itself.
*/
-struct aead_chacha20_poly1305_iv {
+struct __rte_packed_begin aead_chacha20_poly1305_iv {
uint32_t salt;
uint64_t iv;
uint32_t cnt;
-} __rte_packed;
+} __rte_packed_end;
-struct aead_chacha20_poly1305_aad {
+struct __rte_packed_begin aead_chacha20_poly1305_aad {
uint32_t spi;
/*
* RFC 4106, section 5:
@@ -45,25 +45,25 @@ struct aead_chacha20_poly1305_aad {
uint64_t u64;
} sqn;
uint32_t align0; /* align to 16B boundary */
-} __rte_packed;
+} __rte_packed_end;
-struct chacha20_poly1305_esph_iv {
+struct __rte_packed_begin chacha20_poly1305_esph_iv {
struct rte_esp_hdr esph;
uint64_t iv;
-} __rte_packed;
+} __rte_packed_end;
/*
* AES-GCM devices have some specific requirements for IV and AAD formats.
* Ideally that to be done by the driver itself.
*/
-struct aead_gcm_iv {
+struct __rte_packed_begin aead_gcm_iv {
uint32_t salt;
uint64_t iv;
uint32_t cnt;
-} __rte_packed;
+} __rte_packed_end;
-struct aead_gcm_aad {
+struct __rte_packed_begin aead_gcm_aad {
uint32_t spi;
/*
* RFC 4106, section 5:
@@ -75,34 +75,34 @@ struct aead_gcm_aad {
uint64_t u64;
} sqn;
uint32_t align0; /* align to 16B boundary */
-} __rte_packed;
+} __rte_packed_end;
-struct gcm_esph_iv {
+struct __rte_packed_begin gcm_esph_iv {
struct rte_esp_hdr esph;
uint64_t iv;
-} __rte_packed;
+} __rte_packed_end;
/*
* AES-CCM devices have some specific requirements for IV and AAD formats.
* Ideally that to be done by the driver itself.
*/
-union aead_ccm_salt {
+union __rte_packed_begin aead_ccm_salt {
uint32_t salt;
struct inner {
uint8_t salt8[3];
uint8_t ccm_flags;
} inner;
-} __rte_packed;
+} __rte_packed_end;
-struct aead_ccm_iv {
+struct __rte_packed_begin aead_ccm_iv {
uint8_t ccm_flags;
uint8_t salt[3];
uint64_t iv;
uint32_t cnt;
-} __rte_packed;
+} __rte_packed_end;
-struct aead_ccm_aad {
+struct __rte_packed_begin aead_ccm_aad {
uint8_t padding[18];
uint32_t spi;
/*
@@ -115,12 +115,12 @@ struct aead_ccm_aad {
uint64_t u64;
} sqn;
uint32_t align0; /* align to 16B boundary */
-} __rte_packed;
+} __rte_packed_end;
-struct ccm_esph_iv {
+struct __rte_packed_begin ccm_esph_iv {
struct rte_esp_hdr esph;
uint64_t iv;
-} __rte_packed;
+} __rte_packed_end;
static inline void
--
2.47.0.vfs.0.3