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octeontx2-pf: cn10k/cn20k: Update count_eot in NPA_LF_AURA_BATCH_FREE0

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This patch updates the count_eot calculation for CN20K devices.
Where the count_eot feild extended to 2 bits, while maintaining
CN10K compatibility where only bit 0 is used.

Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260128022448.4402-1-gakula@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Geetha sowjanya
2026-01-28 07:54:48 +05:30
committed by Jakub Kicinski
parent 303c1a66a2
commit 988719c5ea
1 changed files with 10 additions and 3 deletions
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13
drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
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@@ -789,8 +789,15 @@ static inline void __cn10k_aura_freeptr(struct otx2_nic *pfvf, u64 aura,
tar_addr = (__force u64)otx2_get_regaddr(pfvf, NPA_LF_AURA_BATCH_FREE0);
/* LMTID is same as AURA Id */
val = (lmt_info->lmt_id & 0x7FF) | BIT_ULL(63);
/* Set if [127:64] of last 128bit word has a valid pointer */
count_eot = (num_ptrs % 2) ? 0ULL : 1ULL;
/* Meaning of count_eot
* CN10K: count_eot = 0 if the number of pointers to free is even,
* count_eot = 1 if the number of pointers to free is odd.
*
* CN20K: count_eot represents the least significant 2 bits of the
* total number of valid pointers to free.
* Example: if 7 pointers are freed (0b111), count_eot = 0b11.
*/
count_eot = (num_ptrs - 1) & 0x3ULL;
/* Set AURA ID to free pointer */
ptrs[0] = (count_eot << 32) | (aura & 0xFFFFF);
/* Target address for LMTST flush tells HW how many 128bit
@@ -800,7 +807,7 @@ static inline void __cn10k_aura_freeptr(struct otx2_nic *pfvf, u64 aura,
*/
if (num_ptrs > 2) {
size = (sizeof(u64) * num_ptrs) / 16;
if (!count_eot)
if (!(count_eot & 1))
size++;
tar_addr |= ((size - 1) & 0x7) << 4;
}