Author: arybchik
Date: Mon Jul 29 09:25:16 2019
New Revision: 350405
URL: https://svnweb.freebsd.org/changeset/base/350405
Log:
MFC r350369
sfxge(4): fix power of 2 round up when align has smaller type
Substitute driver-defined P2ROUNDUP() h with EFX_P2ROUNDUP()
defined in libefx.
Cast value and alignment to one specified type to guarantee result
correctness.
Reported by: Andrea Valsania <andrea.valsania at answervad.it>
Sponsored by: Solarflare Communications, Inc.
Modified:
stable/12/sys/dev/sfxge/common/ef10_nvram.c
stable/12/sys/dev/sfxge/common/efsys.h
stable/12/sys/dev/sfxge/common/efx.h
stable/12/sys/dev/sfxge/common/efx_mcdi.h
stable/12/sys/dev/sfxge/common/efx_tx.c
stable/12/sys/dev/sfxge/sfxge_rx.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/dev/sfxge/common/ef10_nvram.c
==============================================================================
--- stable/12/sys/dev/sfxge/common/ef10_nvram.c Mon Jul 29 09:19:48 2019
(r350404)
+++ stable/12/sys/dev/sfxge/common/ef10_nvram.c Mon Jul 29 09:25:16 2019
(r350405)
@@ -394,7 +394,8 @@ tlv_write(
if (len > 0) {
ptr[(len - 1) / sizeof (uint32_t)] = 0;
memcpy(ptr, data, len);
- ptr += P2ROUNDUP(len, sizeof (uint32_t)) / sizeof (*ptr);
+ ptr += EFX_P2ROUNDUP(uint32_t, len,
+ sizeof (uint32_t)) / sizeof (*ptr);
}
return (ptr);
Modified: stable/12/sys/dev/sfxge/common/efsys.h
==============================================================================
--- stable/12/sys/dev/sfxge/common/efsys.h Mon Jul 29 09:19:48 2019
(r350404)
+++ stable/12/sys/dev/sfxge/common/efsys.h Mon Jul 29 09:25:16 2019
(r350405)
@@ -93,10 +93,6 @@ extern "C" {
#define IS_P2ALIGNED(v, a) ((((uintptr_t)(v)) & ((uintptr_t)(a) -
1)) == 0)
#endif
-#ifndef P2ROUNDUP
-#define P2ROUNDUP(x, align) (-(-(x) & -(align)))
-#endif
-
#ifndef P2ALIGN
#define P2ALIGN(_x, _a) ((_x) & -(_a))
#endif
Modified: stable/12/sys/dev/sfxge/common/efx.h
==============================================================================
--- stable/12/sys/dev/sfxge/common/efx.h Mon Jul 29 09:19:48 2019
(r350404)
+++ stable/12/sys/dev/sfxge/common/efx.h Mon Jul 29 09:25:16 2019
(r350405)
@@ -52,6 +52,10 @@ extern "C" {
#define EFX_FIELD_OFFSET(_type, _field) \
((size_t) &(((_type *)0)->_field))
+/* Round value up to the nearest power of two. */
+#define EFX_P2ROUNDUP(_type, _value, _align) \
+ (-(-(_type)(_value) & -(_type)(_align)))
+
/* Return codes */
typedef __success(return == 0) int efx_rc_t;
@@ -451,10 +455,10 @@ typedef enum efx_link_mode_e {
+ /* bug16011 */ 16) \
#define EFX_MAC_PDU(_sdu) \
- P2ROUNDUP((_sdu) + EFX_MAC_PDU_ADJUSTMENT, 8)
+ EFX_P2ROUNDUP(size_t, (_sdu) + EFX_MAC_PDU_ADJUSTMENT, 8)
/*
- * Due to the P2ROUNDUP in EFX_MAC_PDU(), EFX_MAC_SDU_FROM_PDU() may give
+ * Due to the EFX_P2ROUNDUP in EFX_MAC_PDU(), EFX_MAC_SDU_FROM_PDU() may give
* the SDU rounded up slightly.
*/
#define EFX_MAC_SDU_FROM_PDU(_pdu) ((_pdu) -
EFX_MAC_PDU_ADJUSTMENT)
@@ -540,8 +544,9 @@ efx_mac_stat_name(
#define EFX_MAC_STATS_MASK_BITS_PER_PAGE (8 * sizeof (uint32_t))
-#define EFX_MAC_STATS_MASK_NPAGES \
- (P2ROUNDUP(EFX_MAC_NSTATS, EFX_MAC_STATS_MASK_BITS_PER_PAGE) / \
+#define EFX_MAC_STATS_MASK_NPAGES \
+ (EFX_P2ROUNDUP(uint32_t, EFX_MAC_NSTATS, \
+ EFX_MAC_STATS_MASK_BITS_PER_PAGE) / \
EFX_MAC_STATS_MASK_BITS_PER_PAGE)
/*
Modified: stable/12/sys/dev/sfxge/common/efx_mcdi.h
==============================================================================
--- stable/12/sys/dev/sfxge/common/efx_mcdi.h Mon Jul 29 09:19:48 2019
(r350404)
+++ stable/12/sys/dev/sfxge/common/efx_mcdi.h Mon Jul 29 09:25:16 2019
(r350405)
@@ -395,6 +395,11 @@ efx_mcdi_phy_module_get_info(
(((mask) & (MC_CMD_PRIVILEGE_MASK_IN_GRP_ ## priv)) == \
(MC_CMD_PRIVILEGE_MASK_IN_GRP_ ## priv))
+#define EFX_MCDI_BUF_SIZE(_in_len, _out_len)
\
+ EFX_P2ROUNDUP(size_t, \
+ MAX(MAX(_in_len, _out_len), (2 * sizeof (efx_dword_t))),\
+ sizeof (efx_dword_t))
+
/*
* The buffer size must be a multiple of dword to ensure that MCDI works
* properly with Siena based boards (which use on-chip buffer). Also, it
@@ -402,9 +407,7 @@ efx_mcdi_phy_module_get_info(
* error responses if the request/response buffer sizes are smaller.
*/
#define EFX_MCDI_DECLARE_BUF(_name, _in_len, _out_len) \
- uint8_t _name[P2ROUNDUP(MAX(MAX(_in_len, _out_len), \
- (2 * sizeof (efx_dword_t))), \
- sizeof (efx_dword_t))] = {0}
+ uint8_t _name[EFX_MCDI_BUF_SIZE(_in_len, _out_len)] = {0}
typedef enum efx_mcdi_feature_id_e {
EFX_MCDI_FEATURE_FW_UPDATE = 0,
Modified: stable/12/sys/dev/sfxge/common/efx_tx.c
==============================================================================
--- stable/12/sys/dev/sfxge/common/efx_tx.c Mon Jul 29 09:19:48 2019
(r350404)
+++ stable/12/sys/dev/sfxge/common/efx_tx.c Mon Jul 29 09:25:16 2019
(r350405)
@@ -772,7 +772,7 @@ siena_tx_qpost(
* Fragments must not span 4k boundaries.
* Here it is a stricter requirement than the maximum length.
*/
- EFSYS_ASSERT(P2ROUNDUP(start + 1,
+ EFSYS_ASSERT(EFX_P2ROUNDUP(efsys_dma_addr_t, start + 1,
etp->et_enp->en_nic_cfg.enc_tx_dma_desc_boundary) >= end);
EFX_TX_DESC(etp, start, size, ebp->eb_eop, added);
@@ -1046,7 +1046,7 @@ siena_tx_qdesc_dma_create(
* Fragments must not span 4k boundaries.
* Here it is a stricter requirement than the maximum length.
*/
- EFSYS_ASSERT(P2ROUNDUP(addr + 1,
+ EFSYS_ASSERT(EFX_P2ROUNDUP(efsys_dma_addr_t, addr + 1,
etp->et_enp->en_nic_cfg.enc_tx_dma_desc_boundary) >= addr + size);
EFSYS_PROBE4(tx_desc_dma_create, unsigned int, etp->et_index,
Modified: stable/12/sys/dev/sfxge/sfxge_rx.c
==============================================================================
--- stable/12/sys/dev/sfxge/sfxge_rx.c Mon Jul 29 09:19:48 2019
(r350404)
+++ stable/12/sys/dev/sfxge/sfxge_rx.c Mon Jul 29 09:25:16 2019
(r350405)
@@ -273,7 +273,8 @@ sfxge_rx_qfill(struct sfxge_rxq *rxq, unsigned int tar
/* m_len specifies length of area to be mapped for DMA */
m->m_len = mblksize;
- m->m_data = (caddr_t)P2ROUNDUP((uintptr_t)m->m_data,
CACHE_LINE_SIZE);
+ m->m_data = (caddr_t)EFX_P2ROUNDUP(uintptr_t, m->m_data,
+ CACHE_LINE_SIZE);
m->m_data += sc->rx_buffer_align;
sfxge_map_mbuf_fast(rxq->mem.esm_tag, rxq->mem.esm_map, m,
&seg);
@@ -1103,14 +1104,14 @@ sfxge_rx_start(struct sfxge_softc *sc)
/* Ensure IP headers are 32bit aligned */
hdrlen = sc->rx_prefix_size + sizeof (struct ether_header);
- sc->rx_buffer_align = P2ROUNDUP(hdrlen, 4) - hdrlen;
+ sc->rx_buffer_align = EFX_P2ROUNDUP(size_t, hdrlen, 4) - hdrlen;
sc->rx_buffer_size += sc->rx_buffer_align;
/* Align end of packet buffer for RX DMA end padding */
align = MAX(1, encp->enc_rx_buf_align_end);
EFSYS_ASSERT(ISP2(align));
- sc->rx_buffer_size = P2ROUNDUP(sc->rx_buffer_size, align);
+ sc->rx_buffer_size = EFX_P2ROUNDUP(size_t, sc->rx_buffer_size, align);
/*
* Standard mbuf zones only guarantee pointer-size alignment;
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