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qed: Chain support for external PBL

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iWARP would require the chains to allocate/free their PBL memory
independently, so add the infrastructure to provide it externally.

Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mintz, Yuval 2017-06-20 16:00:00 +03:00 • committed by David S. Miller
parent 8917a777be
commit 1a4a69751f
10 changed files with 56 additions and 28 deletions
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5
drivers/net/ethernet/qlogic/qed/qed_dev_api.h
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@ -307,6 +307,7 @@ int qed_dmae_host2host(struct qed_hwfn *p_hwfn,
* @param num_elems
* @param elem_size
* @param p_chain
* @param ext_pbl - a possible external PBL
*
* @return int
*/
@ -315,7 +316,9 @@ qed_chain_alloc(struct qed_dev *cdev,
enum qed_chain_use_mode intended_use,
enum qed_chain_mode mode,
enum qed_chain_cnt_type cnt_type,
u32 num_elems, size_t elem_size, struct qed_chain *p_chain);
u32 num_elems,
size_t elem_size,
struct qed_chain *p_chain, struct qed_chain_ext_pbl *ext_pbl);
/**
* @brief qed_chain_free - Free chain DMA memory