From patchwork Mon Sep 10 09:33:19 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Rybchenko X-Patchwork-Id: 44489 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 8C4927CD2; Mon, 10 Sep 2018 11:34:32 +0200 (CEST) Received: from dispatch1-us1.ppe-hosted.com (dispatch1-us1.ppe-hosted.com [67.231.154.164]) by dpdk.org (Postfix) with ESMTP id 29FA34CA0 for ; Mon, 10 Sep 2018 11:33:53 +0200 (CEST) X-Virus-Scanned: Proofpoint Essentials engine Received: from webmail.solarflare.com (webmail.solarflare.com [12.187.104.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mx1-us1.ppe-hosted.com (Proofpoint Essentials ESMTP Server) with ESMTPS id 3C16B780055 for ; Mon, 10 Sep 2018 09:33:52 +0000 (UTC) Received: from ocex03.SolarFlarecom.com (10.20.40.36) by ocex03.SolarFlarecom.com (10.20.40.36) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 10 Sep 2018 02:33:48 -0700 Received: from opal.uk.solarflarecom.com (10.17.10.1) by ocex03.SolarFlarecom.com (10.20.40.36) with Microsoft SMTP Server (TLS) id 15.0.1395.4 via Frontend Transport; Mon, 10 Sep 2018 02:33:47 -0700 Received: from ukv-loginhost.uk.solarflarecom.com (ukv-loginhost.uk.solarflarecom.com [10.17.10.39]) by opal.uk.solarflarecom.com (8.13.8/8.13.8) with ESMTP id w8A9XkVU023826; Mon, 10 Sep 2018 10:33:46 +0100 Received: from ukv-loginhost.uk.solarflarecom.com (localhost [127.0.0.1]) by ukv-loginhost.uk.solarflarecom.com (Postfix) with ESMTP id 309E11626D1; Mon, 10 Sep 2018 10:33:46 +0100 (BST) From: Andrew Rybchenko To: CC: Richard Houldsworth Date: Mon, 10 Sep 2018 10:33:19 +0100 Message-ID: <1536572016-18134-21-git-send-email-arybchenko@solarflare.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1536572016-18134-1-git-send-email-arybchenko@solarflare.com> References: <1536572016-18134-1-git-send-email-arybchenko@solarflare.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-12.5.0.1300-8.5.1010-24084.005 X-TM-AS-Result: No-11.629800-4.000000-10 X-TMASE-MatchedRID: HysFsDIA8KUHzljm8jkYRa9SgVZ49rQMNNuh+5zmS6/4JyR+b5tvoJgC Mlq+sZ+f09NQNrxIpFYWHIQM6TbbEycVIubyY3TBV6iWWmDPLEAEa8g1x8eqF01KG1YrOQW/giZ xW8zUgARWlc57tPvBh9p6csyQFWRl09vybq2Rj84ZexXWjVVC3O3+iQEtoSj4C/+dM49Ci+zuiC UIlEPtPoXPY1ZbD5ttpMYpDvSAN3e38c8lYsE6JI7Su3QulAZ5Xs5nqGvDCfNmLpOIgdTrI8CNh EKV8if7Hw5LL3LXbxTvQ2Bqev8ml3kKrmquboXXo4427PDKC0b1LHylaO51H5soi2XrUn/Jn6Kd MrRsL14qtq5d3cxkNX84T32miX9fVW3+WNYXUYEGBFUpKjXIStpZYXkzOJ932vPV4vHEVMo= X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--11.629800-4.000000 X-TMASE-Version: SMEX-12.5.0.1300-8.5.1010-24084.005 X-MDID: 1536572032-Qj17X2XB-mEE Subject: [dpdk-dev] [PATCH 20/37] net/sfc/base: generalise EF10 NVRAM buffer interface X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Richard Houldsworth The SFN driver's PartitionControl WMI object requires an API to parse and filter partition data in TLV format, particularly for the Dynamic Config partition. The ef10_nvram_buffer functions provide this functionality but are tied to use with license partition only. Modify functions so they are applicable to all TLV partitions and add functions to support in-place tag modification. Signed-off-by: Richard Houldsworth Signed-off-by: Andrew Rybchenko --- drivers/net/sfc/base/ef10_impl.h | 43 +++++++-- drivers/net/sfc/base/ef10_nvram.c | 153 ++++++++++++++++++++++++------ drivers/net/sfc/base/efx_impl.h | 2 +- drivers/net/sfc/base/efx_lic.c | 15 ++- drivers/net/sfc/base/efx_nvram.c | 2 +- 5 files changed, 174 insertions(+), 41 deletions(-) diff --git a/drivers/net/sfc/base/ef10_impl.h b/drivers/net/sfc/base/ef10_impl.h index 2abd699a0..503f02362 100644 --- a/drivers/net/sfc/base/ef10_impl.h +++ b/drivers/net/sfc/base/ef10_impl.h @@ -477,17 +477,21 @@ ef10_nvram_partn_set_version( extern __checkReturn efx_rc_t ef10_nvram_buffer_validate( - __in efx_nic_t *enp, __in uint32_t partn, __in_bcount(buffer_size) caddr_t bufferp, __in size_t buffer_size); +extern void +ef10_nvram_buffer_init( + __out_bcount(buffer_size) + caddr_t bufferp, + __in size_t buffer_size); + extern __checkReturn efx_rc_t ef10_nvram_buffer_create( - __in efx_nic_t *enp, - __in uint16_t partn_type, - __in_bcount(buffer_size) + __in uint32_t partn_type, + __out_bcount(buffer_size) caddr_t bufferp, __in size_t buffer_size); @@ -515,6 +519,16 @@ ef10_nvram_buffer_find_item( __out uint32_t *startp, __out uint32_t *lengthp); +extern __checkReturn efx_rc_t +ef10_nvram_buffer_peek_item( + __in_bcount(buffer_size) + caddr_t bufferp, + __in size_t buffer_size, + __in uint32_t offset, + __out uint32_t *tagp, + __out uint32_t *lengthp, + __out uint32_t *value_offsetp); + extern __checkReturn efx_rc_t ef10_nvram_buffer_get_item( __in_bcount(buffer_size) @@ -522,9 +536,10 @@ ef10_nvram_buffer_get_item( __in size_t buffer_size, __in uint32_t offset, __in uint32_t length, - __out_bcount_part(item_max_size, *lengthp) - caddr_t itemp, - __in size_t item_max_size, + __out uint32_t *tagp, + __out_bcount_part(value_max_size, *lengthp) + caddr_t valuep, + __in size_t value_max_size, __out uint32_t *lengthp); extern __checkReturn efx_rc_t @@ -533,7 +548,19 @@ ef10_nvram_buffer_insert_item( caddr_t bufferp, __in size_t buffer_size, __in uint32_t offset, - __in_bcount(length) caddr_t keyp, + __in uint32_t tag, + __in_bcount(length) caddr_t valuep, + __in uint32_t length, + __out uint32_t *lengthp); + +extern __checkReturn efx_rc_t +ef10_nvram_buffer_modify_item( + __in_bcount(buffer_size) + caddr_t bufferp, + __in size_t buffer_size, + __in uint32_t offset, + __in uint32_t tag, + __in_bcount(length) caddr_t valuep, __in uint32_t length, __out uint32_t *lengthp); diff --git a/drivers/net/sfc/base/ef10_nvram.c b/drivers/net/sfc/base/ef10_nvram.c index 96ea5624a..8d1b64f25 100644 --- a/drivers/net/sfc/base/ef10_nvram.c +++ b/drivers/net/sfc/base/ef10_nvram.c @@ -203,14 +203,14 @@ tlv_validate_state( if (tlv_tag(cursor) != TLV_TAG_END) { /* Check current item has space for tag and length */ - if (cursor->current > (cursor->limit - 2)) { + if (cursor->current > (cursor->limit - 1)) { cursor->current = NULL; rc = EFAULT; goto fail3; } - /* Check we have value data for current item and another tag */ - if (tlv_next_item_ptr(cursor) > (cursor->limit - 1)) { + /* Check we have value data for current item and an END tag */ + if (tlv_next_item_ptr(cursor) > cursor->limit) { cursor->current = NULL; rc = EFAULT; goto fail4; @@ -635,7 +635,6 @@ tlv_update_partition_len_and_cks( /* Validate buffer contents (before writing to flash) */ __checkReturn efx_rc_t ef10_nvram_buffer_validate( - __in efx_nic_t *enp, __in uint32_t partn, __in_bcount(partn_size) caddr_t partn_data, __in size_t partn_size) @@ -648,7 +647,6 @@ ef10_nvram_buffer_validate( int pos; efx_rc_t rc; - _NOTE(ARGUNUSED(enp, partn)) EFX_STATIC_ASSERT(sizeof (*header) <= EF10_NVRAM_CHUNK); if ((partn_data == NULL) || (partn_size == 0)) { @@ -675,26 +673,32 @@ ef10_nvram_buffer_validate( goto fail4; } + /* Check partition header matches partn */ + if (__LE_TO_CPU_16(header->type_id) != partn) { + rc = EINVAL; + goto fail5; + } + /* Check partition ends with PARTITION_TRAILER and END tags */ if ((rc = tlv_find(&cursor, TLV_TAG_PARTITION_TRAILER)) != 0) { rc = EINVAL; - goto fail5; + goto fail6; } trailer = (struct tlv_partition_trailer *)tlv_item(&cursor); if ((rc = tlv_advance(&cursor)) != 0) { rc = EINVAL; - goto fail6; + goto fail7; } if (tlv_tag(&cursor) != TLV_TAG_END) { rc = EINVAL; - goto fail7; + goto fail8; } /* Check generation counts are consistent */ if (trailer->generation != header->generation) { rc = EINVAL; - goto fail8; + goto fail9; } /* Verify partition checksum */ @@ -704,11 +708,13 @@ ef10_nvram_buffer_validate( } if (cksum != 0) { rc = EINVAL; - goto fail9; + goto fail10; } return (0); +fail10: + EFSYS_PROBE(fail10); fail9: EFSYS_PROBE(fail9); fail8: @@ -731,13 +737,24 @@ ef10_nvram_buffer_validate( return (rc); } + void +ef10_nvram_buffer_init( + __out_bcount(buffer_size) + caddr_t bufferp, + __in size_t buffer_size) +{ + uint32_t *buf = (uint32_t *)bufferp; + + memset(buf, 0xff, buffer_size); + tlv_init_block(buf); +} __checkReturn efx_rc_t ef10_nvram_buffer_create( - __in efx_nic_t *enp, - __in uint16_t partn_type, - __in_bcount(partn_size) caddr_t partn_data, + __in uint32_t partn_type, + __out_bcount(partn_size) + caddr_t partn_data, __in size_t partn_size) { uint32_t *buf = (uint32_t *)partn_data; @@ -753,9 +770,8 @@ ef10_nvram_buffer_create( goto fail1; } - memset(buf, 0xff, partn_size); + ef10_nvram_buffer_init(partn_data, partn_size); - tlv_init_block(buf); if ((rc = tlv_init_cursor(&cursor, buf, (uint32_t *)((uint8_t *)buf + partn_size), buf)) != 0) { @@ -787,7 +803,7 @@ ef10_nvram_buffer_create( goto fail6; /* Check that the partition is valid. */ - if ((rc = ef10_nvram_buffer_validate(enp, partn_type, + if ((rc = ef10_nvram_buffer_validate(partn_type, partn_data, partn_size)) != 0) goto fail7; @@ -958,6 +974,48 @@ ef10_nvram_buffer_find_item( return (B_FALSE); } + __checkReturn efx_rc_t +ef10_nvram_buffer_peek_item( + __in_bcount(buffer_size) + caddr_t bufferp, + __in size_t buffer_size, + __in uint32_t offset, + __out uint32_t *tagp, + __out uint32_t *lengthp, + __out uint32_t *value_offsetp) +{ + efx_rc_t rc; + tlv_cursor_t cursor; + uint32_t tag; + + if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp, + buffer_size, offset)) != 0) { + goto fail1; + } + + tag = tlv_tag(&cursor); + *tagp = tag; + if (tag == TLV_TAG_END) { + /* + * To allow stepping over the END tag, report the full tag + * length and a zero length value. + */ + *lengthp = sizeof (tag); + *value_offsetp = sizeof (tag); + } else { + *lengthp = byte_offset(tlv_next_item_ptr(&cursor), + cursor.current); + *value_offsetp = byte_offset((uint32_t *)tlv_value(&cursor), + cursor.current); + } + return (0); + +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + __checkReturn efx_rc_t ef10_nvram_buffer_get_item( __in_bcount(buffer_size) @@ -965,16 +1023,17 @@ ef10_nvram_buffer_get_item( __in size_t buffer_size, __in uint32_t offset, __in uint32_t length, - __out_bcount_part(item_max_size, *lengthp) - caddr_t itemp, - __in size_t item_max_size, + __out uint32_t *tagp, + __out_bcount_part(value_max_size, *lengthp) + caddr_t valuep, + __in size_t value_max_size, __out uint32_t *lengthp) { efx_rc_t rc; tlv_cursor_t cursor; - uint32_t item_length; + uint32_t value_length; - if (item_max_size < length) { + if (buffer_size < (offset + length)) { rc = ENOSPC; goto fail1; } @@ -984,14 +1043,15 @@ ef10_nvram_buffer_get_item( goto fail2; } - item_length = tlv_length(&cursor); - if (length < item_length) { + value_length = tlv_length(&cursor); + if (value_max_size < value_length) { rc = ENOSPC; goto fail3; } - memcpy(itemp, tlv_value(&cursor), item_length); + memcpy(valuep, tlv_value(&cursor), value_length); - *lengthp = item_length; + *tagp = tlv_tag(&cursor); + *lengthp = value_length; return (0); @@ -1011,7 +1071,8 @@ ef10_nvram_buffer_insert_item( caddr_t bufferp, __in size_t buffer_size, __in uint32_t offset, - __in_bcount(length) caddr_t keyp, + __in uint32_t tag, + __in_bcount(length) caddr_t valuep, __in uint32_t length, __out uint32_t *lengthp) { @@ -1023,7 +1084,44 @@ ef10_nvram_buffer_insert_item( goto fail1; } - rc = tlv_insert(&cursor, TLV_TAG_LICENSE, (uint8_t *)keyp, length); + rc = tlv_insert(&cursor, tag, (uint8_t *)valuep, length); + + if (rc != 0) + goto fail2; + + *lengthp = byte_offset(tlv_next_item_ptr(&cursor), + cursor.current); + + return (0); + +fail2: + EFSYS_PROBE(fail2); +fail1: + EFSYS_PROBE1(fail1, efx_rc_t, rc); + + return (rc); +} + + __checkReturn efx_rc_t +ef10_nvram_buffer_modify_item( + __in_bcount(buffer_size) + caddr_t bufferp, + __in size_t buffer_size, + __in uint32_t offset, + __in uint32_t tag, + __in_bcount(length) caddr_t valuep, + __in uint32_t length, + __out uint32_t *lengthp) +{ + efx_rc_t rc; + tlv_cursor_t cursor; + + if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp, + buffer_size, offset)) != 0) { + goto fail1; + } + + rc = tlv_modify(&cursor, tag, (uint8_t *)valuep, length); if (rc != 0) { goto fail2; @@ -1042,6 +1140,7 @@ ef10_nvram_buffer_insert_item( return (rc); } + __checkReturn efx_rc_t ef10_nvram_buffer_delete_item( __in_bcount(buffer_size) diff --git a/drivers/net/sfc/base/efx_impl.h b/drivers/net/sfc/base/efx_impl.h index 0764df5de..78df43018 100644 --- a/drivers/net/sfc/base/efx_impl.h +++ b/drivers/net/sfc/base/efx_impl.h @@ -509,7 +509,7 @@ typedef struct efx_nvram_ops_s { uint32_t *, uint16_t *); efx_rc_t (*envo_partn_set_version)(efx_nic_t *, uint32_t, uint16_t *); - efx_rc_t (*envo_buffer_validate)(efx_nic_t *, uint32_t, + efx_rc_t (*envo_buffer_validate)(uint32_t, caddr_t, size_t); } efx_nvram_ops_t; #endif /* EFSYS_OPT_NVRAM */ diff --git a/drivers/net/sfc/base/efx_lic.c b/drivers/net/sfc/base/efx_lic.c index 49c00347f..2b06e2d1e 100644 --- a/drivers/net/sfc/base/efx_lic.c +++ b/drivers/net/sfc/base/efx_lic.c @@ -1158,10 +1158,12 @@ efx_lic_v3_read_key( __in size_t key_max_size, __out uint32_t *lengthp) { + uint32_t tag; + _NOTE(ARGUNUSED(enp)) return ef10_nvram_buffer_get_item(bufferp, buffer_size, - offset, length, keyp, key_max_size, lengthp); + offset, length, &tag, keyp, key_max_size, lengthp); } __checkReturn efx_rc_t @@ -1179,7 +1181,7 @@ efx_lic_v3_write_key( EFSYS_ASSERT(length <= EFX_LICENSE_V3_KEY_LENGTH_MAX); return ef10_nvram_buffer_insert_item(bufferp, buffer_size, - offset, keyp, length, lengthp); + offset, TLV_TAG_LICENSE, keyp, length, lengthp); } __checkReturn efx_rc_t @@ -1221,8 +1223,10 @@ efx_lic_v3_create_partition( { efx_rc_t rc; + _NOTE(ARGUNUSED(enp)) + /* Construct empty partition */ - if ((rc = ef10_nvram_buffer_create(enp, + if ((rc = ef10_nvram_buffer_create( NVRAM_PARTITION_TYPE_LICENSE, bufferp, buffer_size)) != 0) { rc = EFAULT; @@ -1246,13 +1250,16 @@ efx_lic_v3_finish_partition( { efx_rc_t rc; + _NOTE(ARGUNUSED(enp)) + if ((rc = ef10_nvram_buffer_finish(bufferp, buffer_size)) != 0) { goto fail1; } /* Validate completed partition */ - if ((rc = ef10_nvram_buffer_validate(enp, NVRAM_PARTITION_TYPE_LICENSE, + if ((rc = ef10_nvram_buffer_validate( + NVRAM_PARTITION_TYPE_LICENSE, bufferp, buffer_size)) != 0) { goto fail2; } diff --git a/drivers/net/sfc/base/efx_nvram.c b/drivers/net/sfc/base/efx_nvram.c index f3107bbb5..9000fe886 100644 --- a/drivers/net/sfc/base/efx_nvram.c +++ b/drivers/net/sfc/base/efx_nvram.c @@ -468,7 +468,7 @@ efx_nvram_validate( goto fail1; if (envop->envo_buffer_validate != NULL) { - if ((rc = envop->envo_buffer_validate(enp, partn, + if ((rc = envop->envo_buffer_validate(partn, partn_data, partn_size)) != 0) goto fail2; }