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Staging: benet: patch to use offsetof() instead of AMAP_BYTE_OFFSET()

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Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Sathya Perla 2008-11-24 11:04:45 +05:30 committed by Greg Kroah-Hartman
parent 2a5a19caa0
commit 998c15b148
3 changed files with 44 additions and 70 deletions
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10
drivers/staging/benet/funcobj.c
View File

@ -208,7 +208,7 @@ be_function_prepare_embedded_fwcmd(struct be_function_object *pfob,
ASSERT(wrb);
n = AMAP_BYTE_OFFSET(MCC_WRB, payload);
n = offsetof(struct BE_MCC_WRB_AMAP, payload)/8;
AMAP_SET_BITS_PTR(MCC_WRB, embedded, wrb, 1);
AMAP_SET_BITS_PTR(MCC_WRB, payload_length, wrb, min(payld_len, n));
header = (struct FWCMD_REQUEST_HEADER *)((u8 *)wrb + n);
@ -250,7 +250,7 @@ be_function_prepare_nonembedded_fwcmd(struct be_function_object *pfob,
*/
AMAP_SET_BITS_PTR(MCC_WRB, sge_count, wrb, 1);
n = AMAP_BYTE_OFFSET(MCC_WRB, payload);
n = offsetof(struct BE_MCC_WRB_AMAP, payload)/8;
plp = (struct MCC_WRB_PAYLOAD_AMAP *)((u8 *)wrb + n);
AMAP_SET_BITS_PTR(MCC_WRB_PAYLOAD, sgl[0].length, plp, payld_len);
AMAP_SET_BITS_PTR(MCC_WRB_PAYLOAD, sgl[0].pa_lo, plp, (u32)fwcmd_pa);
@ -275,7 +275,7 @@ be_function_peek_mcc_wrb(struct be_function_object *pfob)
if (pfob->mcc)
wrb = _be_mpu_peek_ring_wrb(pfob->mcc, false);
else {
offset = AMAP_BYTE_OFFSET(MCC_MAILBOX, wrb);
offset = offsetof(struct BE_MCC_MAILBOX_AMAP, wrb)/8;
wrb = (struct MCC_WRB_AMAP *) ((u8 *) pfob->mailbox.va +
offset);
}
@ -299,7 +299,7 @@ void be_function_debug_print_wrb(struct be_function_object *pfob,
embedded = AMAP_GET_BITS_PTR(MCC_WRB, embedded, wrb);
if (embedded) {
n = AMAP_BYTE_OFFSET(MCC_WRB, payload);
n = offsetof(struct BE_MCC_WRB_AMAP, payload)/8;
header = (struct FWCMD_REQUEST_HEADER *)((u8 *)wrb + n);
} else {
header = (struct FWCMD_REQUEST_HEADER *) optional_fwcmd_va;
@ -381,7 +381,7 @@ be_function_post_mcc_wrb(struct be_function_object *pfob,
* Copy the context pointer into the WRB opaque tag field.
* Verify assumption of 64-bit tag with a compile time assert.
*/
p = (u64 *) ((u8 *)wrb + AMAP_BYTE_OFFSET(MCC_WRB, tag));
p = (u64 *) ((u8 *)wrb + offsetof(struct BE_MCC_WRB_AMAP, tag)/8);
*p = (u64)(size_t)wrb_context;
/* Print info about this FWCMD for debug builds. */

89
drivers/staging/benet/hwlib.h
View File

@ -38,37 +38,29 @@
* Macros for reading/writing a protection domain or CSR registers
* in BladeEngine.
*/
#define PD_READ(_fo_, _field_) \
ioread32((_fo_)->db_va + \
AMAP_BYTE_OFFSET(PROTECTION_DOMAIN_DBMAP, _field_))
#define PD_READ(fo, field) ioread32((fo)->db_va + \
offsetof(struct BE_PROTECTION_DOMAIN_DBMAP_AMAP, field)/8)
#define PD_WRITE(_fo_, _field_, _value_) \
iowrite32((_value_), (_fo_)->db_va + \
AMAP_BYTE_OFFSET(PROTECTION_DOMAIN_DBMAP, _field_))
#define PD_WRITE(fo, field, val) iowrite32(val, (fo)->db_va + \
offsetof(struct BE_PROTECTION_DOMAIN_DBMAP_AMAP, field)/8)
#define CSR_READ(_fo_, _field_) \
ioread32((_fo_)->csr_va + \
AMAP_BYTE_OFFSET(BLADE_ENGINE_CSRMAP, _field_))
#define CSR_READ(fo, field) ioread32((fo)->csr_va + \
offsetof(struct BE_BLADE_ENGINE_CSRMAP_AMAP, field)/8)
#define CSR_WRITE(_fo_, _field_, _value_) \
iowrite32((_value_), (_fo_)->csr_va + \
AMAP_BYTE_OFFSET(BLADE_ENGINE_CSRMAP, _field_))
#define CSR_WRITE(fo, field, val) iowrite32(val, (fo)->csr_va + \
offsetof(struct BE_BLADE_ENGINE_CSRMAP_AMAP, field)/8)
#define PCICFG0_READ(_fo_, _field_) \
ioread32((_fo_)->pci_va + \
AMAP_BYTE_OFFSET(PCICFG0_CSRMAP, _field_))
#define PCICFG0_READ(fo, field) ioread32((fo)->pci_va + \
offsetof(struct BE_PCICFG0_CSRMAP_AMAP, field)/8)
#define PCICFG0_WRITE(_fo_, _field_, _value_) \
iowrite32((_value_), (_fo_)->pci_va + \
AMAP_BYTE_OFFSET(PCICFG0_CSRMAP, _field_))
#define PCICFG0_WRITE(fo, field, val) iowrite32(val, (fo)->pci_va + \
offsetof(struct BE_PCICFG0_CSRMAP_AMAP, field)/8)
#define PCICFG1_READ(_fo_, _field_) \
ioread32((_fo_)->pci_va + \
AMAP_BYTE_OFFSET(PCICFG1_CSRMAP, _field_))
#define PCICFG1_READ(fo, field) ioread32((fo)->pci_va + \
offsetof(struct BE_PCICFG1_CSRMAP_AMAP, field)/8)
#define PCICFG1_WRITE(_fo_, _field_, _value_) \
iowrite32((_value_), (_fo_)->pci_va + \
AMAP_BYTE_OFFSET(PCICFG1_CSRMAP, _field_))
#define PCICFG1_WRITE(fo, field, val) iowrite32(val, (fo)->pci_va + \
offsetof(struct BE_PCICFG1_CSRMAP_AMAP, field)/8)
#ifdef BE_DEBUG
#define ASSERT(c) BUG_ON(!(c));
@ -185,8 +177,8 @@ static inline u32 amap_mask(u32 bit_size)
return (bit_size == 32 ? 0xFFFFFFFF : (1 << bit_size) - 1);
}
#define AMAP_BIT_MASK(_struct_, _register_) \
amap_mask(AMAP_BIT_SIZE(_struct_, _register_))
#define AMAP_BIT_MASK(_struct_, field) \
amap_mask(AMAP_BIT_SIZE(_struct_, field))
/*
* non-optimized set bits function. First clears the bits and then assigns them.
@ -201,10 +193,9 @@ amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
*(dw + dw_offset) |= (mask & value) << offset;
}
#define AMAP_SET_BITS_PTR(_struct_, _register_, _structPtr_, _value_) \
amap_set(_structPtr_, AMAP_WORD_OFFSET(_struct_, _register_), \
AMAP_BIT_MASK(_struct_, _register_), \
AMAP_BIT_OFFSET(_struct_, _register_), _value_)
#define AMAP_SET_BITS_PTR(_struct_, field, _structPtr_, val) \
amap_set(_structPtr_, AMAP_WORD_OFFSET(_struct_, field), \
AMAP_BIT_MASK(_struct_, field), AMAP_BIT_OFFSET(_struct_, field), val)
/*
* Non-optimized routine that gets the bits without knowing the correct DWORD.
@ -216,39 +207,21 @@ amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
u32 *dw = (u32 *)ptr;
return mask & (*(dw + dw_offset) >> offset);
}
#define AMAP_GET_BITS_PTR(_struct_, _register_, _structPtr_) \
amap_get(_structPtr_, AMAP_WORD_OFFSET(_struct_, _register_), \
AMAP_BIT_MASK(_struct_, _register_), \
AMAP_BIT_OFFSET(_struct_, _register_))
#define AMAP_GET_BITS_PTR(_struct_, field, _structPtr_) \
amap_get(_structPtr_, AMAP_WORD_OFFSET(_struct_, field), \
AMAP_BIT_MASK(_struct_, field), AMAP_BIT_OFFSET(_struct_, field))
/* Returns 0-31 representing bit offset within a DWORD of a bitfield. */
#define AMAP_BIT_OFFSET(_struct_, _register_) \
(((size_t)&(((struct BE_ ## _struct_ ## _AMAP*)0)->_register_))%32)
/* Returns 0-n representing byte offset of bitfield with the structure. */
#define AMAP_BYTE_OFFSET(_struct_, _register_) \
(((size_t)&(((struct BE_ ## _struct_ ## _AMAP *)0)->_register_))/8)
#define AMAP_BIT_OFFSET(_struct_, field) \
(offsetof(struct BE_ ## _struct_ ## _AMAP, field) % 32)
/* Returns 0-n representing DWORD offset of bitfield within the structure. */
#define AMAP_WORD_OFFSET(_struct_, _register_) \
(AMAP_BYTE_OFFSET(_struct_, _register_)/4)
/*
* Gets a pointer to a field within a structure
* The field must be byte aligned.
*/
#define AMAP_GET_PTR(_struct_, _register_, _structPtr_) \
(void *) ((u8 *)(_structPtr_) + AMAP_BYTE_OFFSET(_struct_, _register_))
#define AMAP_WORD_OFFSET(_struct_, field) \
(offsetof(struct BE_ ## _struct_ ## _AMAP, field)/32)
/* Returns size of bitfield in bits. */
#define AMAP_BIT_SIZE(_struct_, _register_) \
sizeof(((struct BE_ ## _struct_ ## _AMAP*)0)->_register_)
/* Returns size of bitfield in bytes. */
#define AMAP_BYTE_SIZE(_struct_) (sizeof(struct BE_ ## _struct_ ## _AMAP)/8)
/* Returns size of bitfield in DWORDS. */
#define AMAP_WORD_SIZE(_struct_) (AMAP_BYTE_SIZE(_struct_)/4)
#define AMAP_BIT_SIZE(_struct_, field) \
sizeof(((struct BE_ ## _struct_ ## _AMAP*)0)->field)
struct be_mcc_wrb_response_copy {
u16 length; /* bytes in response */
@ -475,7 +448,7 @@ struct be_queue_driver_context {
* Common MCC WRB header that all commands require.
*/
struct be_mcc_wrb_header {
u8 rsvd[AMAP_BYTE_OFFSET(MCC_WRB, payload)];
u8 rsvd[offsetof(struct BE_MCC_WRB_AMAP, payload)/8];
} ;
/*

15
drivers/staging/benet/mpu.c
View File

@ -241,11 +241,11 @@ be_mcc_process_cqe(struct be_function_object *pfob,
* A command completed. Commands complete out-of-order.
* Determine which command completed from the TAG.
*/
offset = AMAP_BYTE_OFFSET(MCC_CQ_ENTRY, mcc_tag);
offset = offsetof(struct BE_MCC_CQ_ENTRY_AMAP, mcc_tag)/8;
p = (u8 *) cqe + offset;
wrb_context = (struct be_mcc_wrb_context *)(void *)(size_t)(*(u64 *)p);
ASSERT(wrb_context);
/*
* Perform a response copy if requested.
* Only copy data if the FWCMD is successful.
@ -254,7 +254,8 @@ be_mcc_process_cqe(struct be_function_object *pfob,
if (status == MGMT_STATUS_SUCCESS && wrb_context->copy.length > 0) {
ASSERT(wrb_context->wrb);
ASSERT(wrb_context->copy.va);
p = (u8 *)wrb_context->wrb + AMAP_BYTE_OFFSET(MCC_WRB, payload);
p = (u8 *)wrb_context->wrb +
offsetof(struct BE_MCC_WRB_AMAP, payload)/8;
memcpy(wrb_context->copy.va,
(u8 *)p + wrb_context->copy.fwcmd_offset,
wrb_context->copy.length);
@ -411,7 +412,7 @@ u32 be_mcc_wrb_consumed_in_order(struct be_mcc_object *mcc,
* A command completed. Commands complete out-of-order.
* Determine which command completed from the TAG.
*/
offset = AMAP_BYTE_OFFSET(MCC_CQ_ENTRY, mcc_tag);
offset = offsetof(struct BE_MCC_CQ_ENTRY_AMAP, mcc_tag)/8;
p = (u8 *) cqe + offset;
wrb_context = (struct be_mcc_wrb_context *)(void *)(size_t)(*(u64 *)p);
@ -941,7 +942,7 @@ be_mpu_init_mailbox(struct be_function_object *pfob, struct ring_desc *mailbox)
*/
{
u64 *endian_check = (u64 *) (pfob->mailbox.va +
AMAP_BYTE_OFFSET(MCC_MAILBOX, wrb));
offsetof(struct BE_MCC_MAILBOX_AMAP, wrb)/8);
*endian_check = 0xFF1234FFFF5678FFULL;
}
@ -983,7 +984,7 @@ _be_mpu_post_wrb_mailbox(struct be_function_object *pfob,
mailbox = pfob->mailbox.va;
ASSERT(mailbox);
offset = AMAP_BYTE_OFFSET(MCC_MAILBOX, wrb);
offset = offsetof(struct BE_MCC_MAILBOX_AMAP, wrb)/8;
mb_wrb = (struct MCC_WRB_AMAP *) (u8 *)mailbox + offset;
if (mb_wrb != wrb) {
memset(mailbox, 0, sizeof(*mailbox));
@ -995,7 +996,7 @@ _be_mpu_post_wrb_mailbox(struct be_function_object *pfob,
be_mcc_mailbox_notify_and_wait(pfob);
/* A command completed. Use tag to determine which command. */
offset = AMAP_BYTE_OFFSET(MCC_MAILBOX, cq);
offset = offsetof(struct BE_MCC_MAILBOX_AMAP, cq)/8;
mb_cq = (struct MCC_CQ_ENTRY_AMAP *) ((u8 *)mailbox + offset);
be_mcc_process_cqe(pfob, mb_cq);