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Commit 3d73cf1a authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Roland Dreier
Browse files

Target/iser: Centralize ib_sig_domain setting 



Later there will be more parameters to set, so we want to do it in a
centralized place.

This patch does not change any functionality.

Signed-off-by: default avatarSagi Grimberg <sagig@mellanox.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent 92792c0a

drivers/infiniband/ulp/isert/ib_isert.c

+16 −17
Original line number Diff line number Diff line
@@ -2626,41 +2626,40 @@ se2ib_prot_type(enum target_prot_type prot_type) 
	}

}



static inline void

isert_set_dif_domain(struct se_cmd *se_cmd, struct ib_sig_attrs *sig_attrs,

		     struct ib_sig_domain *domain)

{

	enum ib_t10_dif_type ib_prot_type = se2ib_prot_type(se_cmd->prot_type);



	domain->sig.dif.type = ib_prot_type;

	domain->sig.dif.bg_type = IB_T10DIF_CRC;

	domain->sig.dif.pi_interval = se_cmd->se_dev->dev_attrib.block_size;

	domain->sig.dif.ref_tag = se_cmd->reftag_seed;

};



static int

isert_set_sig_attrs(struct se_cmd *se_cmd, struct ib_sig_attrs *sig_attrs)

{

	enum ib_t10_dif_type ib_prot_type = se2ib_prot_type(se_cmd->prot_type);



	sig_attrs->mem.sig_type = IB_SIG_TYPE_T10_DIF;

	sig_attrs->wire.sig_type = IB_SIG_TYPE_T10_DIF;

	sig_attrs->mem.sig.dif.pi_interval =

				se_cmd->se_dev->dev_attrib.block_size;

	sig_attrs->wire.sig.dif.pi_interval =

				se_cmd->se_dev->dev_attrib.block_size;



	switch (se_cmd->prot_op) {

	case TARGET_PROT_DIN_INSERT:

	case TARGET_PROT_DOUT_STRIP:

		sig_attrs->mem.sig.dif.type = IB_T10DIF_NONE;

		sig_attrs->wire.sig.dif.type = ib_prot_type;

		sig_attrs->wire.sig.dif.bg_type = IB_T10DIF_CRC;

		sig_attrs->wire.sig.dif.ref_tag = se_cmd->reftag_seed;

		isert_set_dif_domain(se_cmd, sig_attrs, &sig_attrs->wire);

		break;

	case TARGET_PROT_DOUT_INSERT:

	case TARGET_PROT_DIN_STRIP:

		sig_attrs->mem.sig.dif.type = ib_prot_type;

		sig_attrs->mem.sig.dif.bg_type = IB_T10DIF_CRC;

		sig_attrs->mem.sig.dif.ref_tag = se_cmd->reftag_seed;

		sig_attrs->wire.sig.dif.type = IB_T10DIF_NONE;

		isert_set_dif_domain(se_cmd, sig_attrs, &sig_attrs->mem);

		break;

	case TARGET_PROT_DIN_PASS:

	case TARGET_PROT_DOUT_PASS:

		sig_attrs->mem.sig.dif.type = ib_prot_type;

		sig_attrs->mem.sig.dif.bg_type = IB_T10DIF_CRC;

		sig_attrs->mem.sig.dif.ref_tag = se_cmd->reftag_seed;

		sig_attrs->wire.sig.dif.type = ib_prot_type;

		sig_attrs->wire.sig.dif.bg_type = IB_T10DIF_CRC;

		sig_attrs->wire.sig.dif.ref_tag = se_cmd->reftag_seed;

		isert_set_dif_domain(se_cmd, sig_attrs, &sig_attrs->wire);

		isert_set_dif_domain(se_cmd, sig_attrs, &sig_attrs->mem);

		break;

	default:

		pr_err("Unsupported PI operation %d\n", se_cmd->prot_op);