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common/sfc_efx/base: add efsys API to find a memory BAR

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Function control window lookup needs memory BARs handles to
search Xilinx capabilities tables.

Define an API to get a memory BAR handle by a PCIe device handle and
BAR index.

Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
This commit is contained in:
Igor Romanov 2020-09-24 13:12:20 +01:00 committed by Ferruh Yigit
parent a45edfce34
commit 0e16872572
1 changed files with 8 additions and 1 deletions
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9
drivers/common/sfc_efx/base/rhead_pci.c
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@ -20,6 +20,7 @@ rhead_pci_nic_membar_lookup(
size_t pci_capa_offset = 0;
boolean_t bar_found = B_FALSE;
efx_rc_t rc = ENOENT;
efsys_bar_t xil_eb;
/*
* SF-119689-TC Riverhead Host Interface section 4.2.2. describes
@ -50,13 +51,19 @@ rhead_pci_nic_membar_lookup(
}
xilinx_tbl_found = B_TRUE;
EFSYS_PCI_FIND_MEM_BAR(espcp, xilinx_tbl_bar, &xil_eb, &rc);
if (rc != 0)
goto fail2;
}
if (bar_found == B_FALSE)
goto fail2;
goto fail3;
return (0);
fail3:
EFSYS_PROBE(fail3);
fail2:
EFSYS_PROBE(fail2);
fail1: