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| author | Geetha sowjanya <gakula@marvell.com> | 2026-01-28 05:24:48 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-01-30 06:34:01 +0300 |
| commit | 988719c5eafd4a6cfdd1a0a607cc2ae537433dd4 (patch) | |
| tree | b19b33b844b59e21eca30638a75f3e7206d5c696 | |
| parent | 303c1a66a22068517793284524dd1d24b7316d1b (diff) | |
| download | linux-988719c5eafd4a6cfdd1a0a607cc2ae537433dd4.tar.xz | |
octeontx2-pf: cn10k/cn20k: Update count_eot in NPA_LF_AURA_BATCH_FREE0
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>
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h index 8cdfc36d79d2..255c7e2633bb 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h @@ -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; } |