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path: root/drivers/net/sfc/base/efx_tx.c
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Diffstat (limited to 'drivers/net/sfc/base/efx_tx.c')
-rw-r--r--drivers/net/sfc/base/efx_tx.c145
1 files changed, 65 insertions, 80 deletions
diff --git a/drivers/net/sfc/base/efx_tx.c b/drivers/net/sfc/base/efx_tx.c
index ceb29206..4e02c869 100644
--- a/drivers/net/sfc/base/efx_tx.c
+++ b/drivers/net/sfc/base/efx_tx.c
@@ -1,31 +1,7 @@
-/*
- * Copyright (c) 2007-2016 Solarflare Communications Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
+/* SPDX-License-Identifier: BSD-3-Clause
*
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
- * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * The views and conclusions contained in the software and documentation are
- * those of the authors and should not be interpreted as representing official
- * policies, either expressed or implied, of the FreeBSD Project.
+ * Copyright (c) 2007-2018 Solarflare Communications Inc.
+ * All rights reserved.
*/
#include "efx.h"
@@ -57,7 +33,7 @@ siena_tx_qcreate(
__in unsigned int index,
__in unsigned int label,
__in efsys_mem_t *esmp,
- __in size_t n,
+ __in size_t ndescs,
__in uint32_t id,
__in uint16_t flags,
__in efx_evq_t *eep,
@@ -68,13 +44,13 @@ static void
siena_tx_qdestroy(
__in efx_txq_t *etp);
-static __checkReturn efx_rc_t
+static __checkReturn efx_rc_t
siena_tx_qpost(
- __in efx_txq_t *etp,
- __in_ecount(n) efx_buffer_t *eb,
- __in unsigned int n,
- __in unsigned int completed,
- __inout unsigned int *addedp);
+ __in efx_txq_t *etp,
+ __in_ecount(ndescs) efx_buffer_t *eb,
+ __in unsigned int ndescs,
+ __in unsigned int completed,
+ __inout unsigned int *addedp);
static void
siena_tx_qpush(
@@ -95,13 +71,13 @@ static void
siena_tx_qenable(
__in efx_txq_t *etp);
- __checkReturn efx_rc_t
+ __checkReturn efx_rc_t
siena_tx_qdesc_post(
- __in efx_txq_t *etp,
- __in_ecount(n) efx_desc_t *ed,
- __in unsigned int n,
- __in unsigned int completed,
- __inout unsigned int *addedp);
+ __in efx_txq_t *etp,
+ __in_ecount(ndescs) efx_desc_t *ed,
+ __in unsigned int ndescs,
+ __in unsigned int completed,
+ __inout unsigned int *addedp);
void
siena_tx_qdesc_dma_create(
@@ -290,7 +266,7 @@ efx_tx_qcreate(
__in unsigned int index,
__in unsigned int label,
__in efsys_mem_t *esmp,
- __in size_t n,
+ __in size_t ndescs,
__in uint32_t id,
__in uint16_t flags,
__in efx_evq_t *eep,
@@ -298,14 +274,14 @@ efx_tx_qcreate(
__out unsigned int *addedp)
{
const efx_tx_ops_t *etxop = enp->en_etxop;
- efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
efx_txq_t *etp;
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_TX);
- EFSYS_ASSERT3U(enp->en_tx_qcount + 1, <, encp->enc_txq_limit);
+ EFSYS_ASSERT3U(enp->en_tx_qcount + 1, <,
+ enp->en_nic_cfg.enc_txq_limit);
/* Allocate an TXQ object */
EFSYS_KMEM_ALLOC(enp->en_esip, sizeof (efx_txq_t), etp);
@@ -318,14 +294,14 @@ efx_tx_qcreate(
etp->et_magic = EFX_TXQ_MAGIC;
etp->et_enp = enp;
etp->et_index = index;
- etp->et_mask = n - 1;
+ etp->et_mask = ndescs - 1;
etp->et_esmp = esmp;
/* Initial descriptor index may be modified by etxo_qcreate */
*addedp = 0;
if ((rc = etxop->etxo_qcreate(enp, index, label, esmp,
- n, id, flags, eep, etp, addedp)) != 0)
+ ndescs, id, flags, eep, etp, addedp)) != 0)
goto fail2;
enp->en_tx_qcount++;
@@ -359,13 +335,13 @@ efx_tx_qdestroy(
EFSYS_KMEM_FREE(enp->en_esip, sizeof (efx_txq_t), etp);
}
- __checkReturn efx_rc_t
+ __checkReturn efx_rc_t
efx_tx_qpost(
- __in efx_txq_t *etp,
- __in_ecount(n) efx_buffer_t *eb,
- __in unsigned int n,
- __in unsigned int completed,
- __inout unsigned int *addedp)
+ __in efx_txq_t *etp,
+ __in_ecount(ndescs) efx_buffer_t *eb,
+ __in unsigned int ndescs,
+ __in unsigned int completed,
+ __inout unsigned int *addedp)
{
efx_nic_t *enp = etp->et_enp;
const efx_tx_ops_t *etxop = enp->en_etxop;
@@ -373,8 +349,7 @@ efx_tx_qpost(
EFSYS_ASSERT3U(etp->et_magic, ==, EFX_TXQ_MAGIC);
- if ((rc = etxop->etxo_qpost(etp, eb,
- n, completed, addedp)) != 0)
+ if ((rc = etxop->etxo_qpost(etp, eb, ndescs, completed, addedp)) != 0)
goto fail1;
return (0);
@@ -550,13 +525,13 @@ fail1:
return (rc);
}
- __checkReturn efx_rc_t
+ __checkReturn efx_rc_t
efx_tx_qdesc_post(
- __in efx_txq_t *etp,
- __in_ecount(n) efx_desc_t *ed,
- __in unsigned int n,
- __in unsigned int completed,
- __inout unsigned int *addedp)
+ __in efx_txq_t *etp,
+ __in_ecount(ndescs) efx_desc_t *ed,
+ __in unsigned int ndescs,
+ __in unsigned int completed,
+ __inout unsigned int *addedp)
{
efx_nic_t *enp = etp->et_enp;
const efx_tx_ops_t *etxop = enp->en_etxop;
@@ -565,7 +540,7 @@ efx_tx_qdesc_post(
EFSYS_ASSERT3U(etp->et_magic, ==, EFX_TXQ_MAGIC);
if ((rc = etxop->etxo_qdesc_post(etp, ed,
- n, completed, addedp)) != 0)
+ ndescs, completed, addedp)) != 0)
goto fail1;
return (0);
@@ -724,22 +699,22 @@ siena_tx_init(
_NOTE(CONSTANTCONDITION) \
} while (B_FALSE)
-static __checkReturn efx_rc_t
+static __checkReturn efx_rc_t
siena_tx_qpost(
- __in efx_txq_t *etp,
- __in_ecount(n) efx_buffer_t *eb,
- __in unsigned int n,
- __in unsigned int completed,
- __inout unsigned int *addedp)
+ __in efx_txq_t *etp,
+ __in_ecount(ndescs) efx_buffer_t *eb,
+ __in unsigned int ndescs,
+ __in unsigned int completed,
+ __inout unsigned int *addedp)
{
unsigned int added = *addedp;
unsigned int i;
int rc = ENOSPC;
- if (added - completed + n > EFX_TXQ_LIMIT(etp->et_mask + 1))
+ if (added - completed + ndescs > EFX_TXQ_LIMIT(etp->et_mask + 1))
goto fail1;
- for (i = 0; i < n; i++) {
+ for (i = 0; i < ndescs; i++) {
efx_buffer_t *ebp = &eb[i];
efsys_dma_addr_t start = ebp->eb_addr;
size_t size = ebp->eb_size;
@@ -889,7 +864,7 @@ siena_tx_qcreate(
__in unsigned int index,
__in unsigned int label,
__in efsys_mem_t *esmp,
- __in size_t n,
+ __in size_t ndescs,
__in uint32_t id,
__in uint16_t flags,
__in efx_evq_t *eep,
@@ -899,6 +874,7 @@ siena_tx_qcreate(
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
efx_oword_t oword;
uint32_t size;
+ uint16_t inner_csum;
efx_rc_t rc;
_NOTE(ARGUNUSED(esmp))
@@ -910,7 +886,8 @@ siena_tx_qcreate(
EFSYS_ASSERT(ISP2(encp->enc_txq_max_ndescs));
EFX_STATIC_ASSERT(ISP2(EFX_TXQ_MINNDESCS));
- if (!ISP2(n) || (n < EFX_TXQ_MINNDESCS) || (n > EFX_EVQ_MAXNEVS)) {
+ if (!ISP2(ndescs) ||
+ (ndescs < EFX_TXQ_MINNDESCS) || (ndescs > EFX_EVQ_MAXNEVS)) {
rc = EINVAL;
goto fail1;
}
@@ -921,13 +898,19 @@ siena_tx_qcreate(
for (size = 0;
(1 << size) <= (int)(encp->enc_txq_max_ndescs / EFX_TXQ_MINNDESCS);
size++)
- if ((1 << size) == (int)(n / EFX_TXQ_MINNDESCS))
+ if ((1 << size) == (int)(ndescs / EFX_TXQ_MINNDESCS))
break;
if (id + (1 << size) >= encp->enc_buftbl_limit) {
rc = EINVAL;
goto fail3;
}
+ inner_csum = EFX_TXQ_CKSUM_INNER_IPV4 | EFX_TXQ_CKSUM_INNER_TCPUDP;
+ if ((flags & inner_csum) != 0) {
+ rc = EINVAL;
+ goto fail4;
+ }
+
/* Set up the new descriptor queue */
*addedp = 0;
@@ -950,6 +933,8 @@ siena_tx_qcreate(
return (0);
+fail4:
+ EFSYS_PROBE(fail4);
fail3:
EFSYS_PROBE(fail3);
fail2:
@@ -960,24 +945,24 @@ fail1:
return (rc);
}
- __checkReturn efx_rc_t
+ __checkReturn efx_rc_t
siena_tx_qdesc_post(
- __in efx_txq_t *etp,
- __in_ecount(n) efx_desc_t *ed,
- __in unsigned int n,
- __in unsigned int completed,
- __inout unsigned int *addedp)
+ __in efx_txq_t *etp,
+ __in_ecount(ndescs) efx_desc_t *ed,
+ __in unsigned int ndescs,
+ __in unsigned int completed,
+ __inout unsigned int *addedp)
{
unsigned int added = *addedp;
unsigned int i;
efx_rc_t rc;
- if (added - completed + n > EFX_TXQ_LIMIT(etp->et_mask + 1)) {
+ if (added - completed + ndescs > EFX_TXQ_LIMIT(etp->et_mask + 1)) {
rc = ENOSPC;
goto fail1;
}
- for (i = 0; i < n; i++) {
+ for (i = 0; i < ndescs; i++) {
efx_desc_t *edp = &ed[i];
unsigned int id;
size_t offset;
@@ -989,7 +974,7 @@ siena_tx_qdesc_post(
}
EFSYS_PROBE3(tx_desc_post, unsigned int, etp->et_index,
- unsigned int, added, unsigned int, n);
+ unsigned int, added, unsigned int, ndescs);
EFX_TX_QSTAT_INCR(etp, TX_POST);